Recently, in the West An Jinfu special Electronics Co., Ltd. informed that the company successfully developed after years of research and development, lead-acid battery maintenance repair class products, tested and approved by the relevant authority, can effectively extend the replacement battery for a32-1015 lead-acid battery life of more than 80% power upgrade20%, after charging the battery does not produce the virtual voltage.
The product lead-acid battery charging electrical storage technical "irreversible" and become "irreversible". This is a major breakthrough for lead-acid battery technology.
According to reports, the use of complex pulse principle, first locate the crystal resonant frequency of the molecular structure determined, the resonant frequency and the size of the crystals. The larger the crystal size, the lower the resonant frequency range; crystal size is smaller the higher the resonant frequency range. After repeated experiments on the basis of lead-acid battery charging electrical storage, the use of cutting-edge steep xiao pulse Fourier series frequency analysis can know the pulse to generate rich harmonic components. The low frequency part of the amplitude, high-frequency part of the amplitude. This product after charging the battery power storage, the continuous generation of complex high and low frequency pulse, large sulfate crystals obtained by high energy Summary of crystal energy, thus the formation of large lead sulfate 11.1v 5200mah 9cells a32-m50crystals resonant amplitude during the positive pulse charging readily soluble than lead sulfate crystals, and play a role in repairing the battery and there is no damage to the battery plates.
The new battery enabled by this product this complex high and low frequency pulse power storage, one of the products produced by pulse disturbance, destruction of the continuation of the growth of large lead sulfate conditions, to maintain the good condition of the lead-acid batteries, extended battery life life; the second function of the gradual dissolution of sulfuric acid, played the role of repair; its battery is no longer a virtual voltage, power storage, reliable, stable, and can gradually improve the energy stored in.
According to the global cell network to understand the Wildcats in San Diego, United States technology company is developing a new material, to improve cell conversion efficiency. In March last year, the company announced the cathode of a lithium cobalt phosphate in the popularity of lithium-ion phosphate battery cathode than GM can enhance nearly a32-f52 laptop battery one-third of the energy density. The company also demonstrated a way to make the battery more stable work of the electrolyte at higher voltages.
To select the ideal battery material is a particularly thorny problem. The battery unit has three main components: the anode, cathode and electrolyte. Not only for each component are mixed to form a variety of substances, and between the three must work together well. This is left to the researchers a myriad of combinations of potential for development to be explored.
In order to find a combination of Italian Wildcats used an initial strategy invented by the drug development laboratories: high-throughput combinatorial chemistry method. They are not a test of a material, but to systematically carry out thousands of tests in parallel, analysis and testing of the one week out of nearly thousands of material combinations. "We have found the material can enhance the energy density three times, but still experimental." Said Mark Gray, CEO of the company's Sale (Mark Gresser).
Other companies trying to use a combination of looking for new battery materials, but they encountered an obstacle. The easy way to test thousands of materials, samples of each material deposited on top of a certain matrix at the end the membrane. This method gave previous researchers have found an ideal material for the manufacture of battery components - but then uncovered candidate materials, usually prove not apply to cost-effective mass production processes.
In order to avoid this time-wasting detours, wildcat company to find a miniature version of mass production technology to manufacture the samples. In the implementation, while the performance of the candidate materials tested on whether they are ease of manufacturing test. In addition, the Wildcats company is also a wide range of potential operating conditions, the material components together assembled into the actual batterybattery for a32-k52 test. Many variables, including temperature and voltage will affect the battery performance, we must examine all these variables. "Searle said Gray. The result: a test bed of the wildcat company materials with excellent performance to get the production site inspection is also excellent.
If the Wildcats, their efforts will become smaller than it is now the future of the battery, the power is greater - the progress of attractive smart phones and electric car manufacturer and his ilk.
To select the ideal battery material is a particularly thorny problem. The battery unit has three main components: the anode, cathode and electrolyte. Not only for each component are mixed to form a variety of substances, and between the three must work together well. This is left to the researchers a myriad of combinations of potential for development to be explored.
In order to find a combination of Italian Wildcats used an initial strategy invented by the drug development laboratories: high-throughput combinatorial chemistry method. They are not a test of a material, but to systematically carry out thousands of tests in parallel, analysis and testing of the one week out of nearly thousands of material combinations. "We have found the material can enhance the energy density three times, but still experimental." Said Mark Gray, CEO of the company's Sale (Mark Gresser).
Other companies trying to use a combination of looking for new battery materials, but they encountered an obstacle. The easy way to test thousands of materials, samples of each material deposited on top of a certain matrix at the end the membrane. This method gave previous researchers have found an ideal material for the manufacture of battery components - but then uncovered candidate materials, usually prove not apply to cost-effective mass production processes.
In order to avoid this time-wasting detours, wildcat company to find a miniature version of mass production technology to manufacture the samples. In the implementation, while the performance of the candidate materials tested on whether they are ease of manufacturing test. In addition, the Wildcats company is also a wide range of potential operating conditions, the material components together assembled into the actual batterybattery for a32-k52 test. Many variables, including temperature and voltage will affect the battery performance, we must examine all these variables. "Searle said Gray. The result: a test bed of the wildcat company materials with excellent performance to get the production site inspection is also excellent.
If the Wildcats, their efforts will become smaller than it is now the future of the battery, the power is greater - the progress of attractive smart phones and electric car manufacturer and his ilk.
Most portable product's performance depends on the quality of the battery of its power supply. In recent years, with the improvement of battery performance, portable products is toward smaller, lighter, more powerful direction of development. At present, three types: alkaline batteries, nickel metal hydride batteries (NiMH) and lithium-ion battery battery for portable products powered. The alkaline battery is a non-rechargeable batteries, with very low self-discharge rate and very low cost. Commonly used in low-power products, such as: remote control, electric toys and so on. When the load phase for large, alkaline batteries, such as: laptop, PDA and cell phones, the need to use rechargeable batteries. There are two rechargeable battery options: NiMH battery and Li + battery. NiMH batteries with Li + Battery compared with higher self-discharge rate, the 9cells a32-n61 energy density is not as Li + batteries is high, but its cost is far lower than the Li + battery protection circuit design do not ask. Therefore, it is suitable for cost-sensitive products. NiMH battery voltage specifications, alkaline batteries, alkaline batteries can be used as a substitute. Now, the good NiMH AA battery capacity on the market can reach 1700mAh ~ 2000mAh, However, due to battery manufacturers of measuring equipment and the user's actual application conditions, the practical application, the user may not get the battery nominal capacity. On the other hand, the performance of the battery itself will to a certain extent affect the effect of battery life.
For battery management design engineers also need to pay special attention to the design of the charger, battery performance is good or bad have a great relationship with the charger, NiMH battery suitable for the process of fully charged and fully discharged. If you use inferior charger, rechargeable battery can not add all of the electricity, then even the best batteries can not achieve the desired results. Therefore, when the design of the NiMH battery charger, full account of the cost problem, not the blind pursuit of low prices.
Dallas Semiconductor recently introduced NiMH battery charger DS2711 and DS2712 applies to the built-in or external (independent) 2 AA and AAA NiMH batteries charge. Monitor temperature, voltage and charging time, the best fast-charge control. In addition, it is able to detect invalid or does not match the battery, such as disposable alkaline batteries in support of the series and parallel topology, each cell individually to detect and control.
Constitute a linear charger with pulse charger
Can constitute a linear charger and a pulse charger (Figure 1) by using the DS2712 Loose Cell charger designed to charge structure to make the right choice. Linear charger regulator through the linear region of a working transistor share the pressure difference between the DC power supply and battery power for charge current and tube voltage drop of the product. If the regulator is packaged in a poorly ventilated space, power dissipation will result in fever, caused by temperature rise.
Figure 1, a) diagram is a linear charger using the DS2712, for two series NiMH battery charging. DS2712 drive external power transistors FCX718 reduce the supply voltage to the battery voltage. Linear charger circuit is simple, relatively low cost, but should pay attention to heat dissipation problems. For example: a charging current of 1A, 2 NiMH battery charger, each cell NiMH battery end-of-charge voltage of 1.6V to 1.7V, but may be as high as 2V, depending on the battery and charging current. Therefore, the DC supply voltage must be greater than 2 × 2 = 4V. Single-cell NiMH battery is fully discharged voltage may be reduced to 0.9V. Even so, the voltage of the battery pack should be 2 × 0.9 = 1.8V. If using a standard +5 V DC power supply, the differential pressure of the transistor 5V-1.8V = 3.2V. To completely discharge the battery when charging, the charger will consume 3.2W electricity, battery power consumption of 1.8W, the charging efficiency is only 36%. Therefore, the linear structure is more suitable for better heat dissipation external charger (also known as the cradle of charger).
The battery charger of some of the larger size, including notebook computers, portable devices will be placed within the system as a component of the system. At this point, the charger's efficiency is essential, this is not to be able to transfer maximum energy, just in order to reduce heat. Heat temperature rise, while the battery in high temperature environment may shorten the life. The charger should use a pulse charger, because its power dissipation is relatively small and has nothing to do with the input-output differentials, Figure 1b) is the pulse charger of the DS2712 configuration requirements to maintain efficiency, the entire battery voltage range. The main disadvantage of the pulse charger is required inductor and capacitor filter, in order to switch the output voltage into a DC voltage suitable for battery. Another drawback of this regulator: the switching process will produce noise, through appropriate wiring and shielding, filtering measures to avoid.
NiMH battery charging control
NiMH battery charging, the battery is fully charged, the terminal voltage rises to a maximum and then begin to decline. When the terminal voltage drop dv / dt becomes negative, it should terminate the fast charge mode, otherwise, the battery charge current will electrolysis of water into hydrogen and oxygen, lead battery scrap. In order to ensure terminate the fast charge mode before the battery is damaged, the charger needs to detect the terminal voltage of the NiMH battery, and to terminate the fast charge mode when the voltage reaches the maximum value that is, dv / dt = 0, or slightly below 0.
On the voltage detection charger monitors the battery temperature, charging time, as an auxiliary or back-up protection scheme. Figure 2 is a DS2711/DS2712 the internal charging control process. There are three ways to start a full charge process: Insert the battery Insert the battery case connected to the charger power; connected to the charging power supply; to lift the charge suspend mode. Each charge from the pre-charge, pre-charging process to a smaller current to charge the battery to charge the battery voltage to 1V, to prevent deep discharge of the battery fast charging, but also to avoid charging the battery in extreme temperatures.
The rapid charging process, The DS2711 / D S2712 battery do further testing to determine whether the battery alkaline battery or waste, damage the NiMH batteries provide reliable protection for the system. When the battery open circuit voltage between 1.0V to 1.75V between the battery temperature is below +50 ° C (based on the THM1, THM2 voltage), the charger will continue to fast charge current to charge the battery, once detected,-ΔV, will immediately to terminate the fast charge process. The fast charge after the end of the floating stage, after the end of the float cycle into the holding phase, the completion of a full charging process. The maximum voltage detection, temperature and charging time monitoring is always accompanied by the entire charging process for the system to provide secondary protection against overcharge.
The detection of primary cells
The DS2711/DS2712 standard NiMH battery charger is able to detect the primary cells (batteries or non-rechargeable batteries) to avoid charge. We collected several new and old NiMH rechargeable batteries and alkaline primary batteries, these batteries charge and impedance testing, because the battery impedance depends largely on the remaining battery or charging status using the DS2711, we choose 4 kinds of charging status: full, low battery, empty battery and the battery is depleted. "Full" refers to the NiMH battery is fully charged alkaline batteries, "full" refers to the battery just remove the packaging; and "low battery" refers to the battery discharge under a 50mA load to 1.2V;, "Empty" refers to the battery discharge under a 50mA load to 0.8V; run out of battery "means the battery is discharged to 0.0V under a 50mA load. When the battery when the battery is discharged to the specified state measurements, in order to calculate cheap a42-ul50the impedance of each battery. Table 1, Table 2 shows the test results.
The DS2711/DS2712 the battery impedance measurement threshold of the external resistor (RCTST) set up by the CTST. RCTST resistance is based on the required impedance gate limit and charge current calculated according to Table 1, Table 2, test results, we chose to 160mΩ judgment rechargeable NiMH battery detection threshold limit, alkaline batteries will not be able to pass the test.
DS2711 and DS2712 provides an ideal charging solution for one or two AA or AAA Standard NiMH battery, they are able to detect the alkaline primary cells and to prevent its charge. Alkaline primary battery manufacturers do not recommend their products to be charged, therefore, able to identify which batteries can be charged safely, and what not charge the battery for the charger, will be a very critical function, to provide users with additional security.
For battery management design engineers also need to pay special attention to the design of the charger, battery performance is good or bad have a great relationship with the charger, NiMH battery suitable for the process of fully charged and fully discharged. If you use inferior charger, rechargeable battery can not add all of the electricity, then even the best batteries can not achieve the desired results. Therefore, when the design of the NiMH battery charger, full account of the cost problem, not the blind pursuit of low prices.
Dallas Semiconductor recently introduced NiMH battery charger DS2711 and DS2712 applies to the built-in or external (independent) 2 AA and AAA NiMH batteries charge. Monitor temperature, voltage and charging time, the best fast-charge control. In addition, it is able to detect invalid or does not match the battery, such as disposable alkaline batteries in support of the series and parallel topology, each cell individually to detect and control.
Constitute a linear charger with pulse charger
Can constitute a linear charger and a pulse charger (Figure 1) by using the DS2712 Loose Cell charger designed to charge structure to make the right choice. Linear charger regulator through the linear region of a working transistor share the pressure difference between the DC power supply and battery power for charge current and tube voltage drop of the product. If the regulator is packaged in a poorly ventilated space, power dissipation will result in fever, caused by temperature rise.
Figure 1, a) diagram is a linear charger using the DS2712, for two series NiMH battery charging. DS2712 drive external power transistors FCX718 reduce the supply voltage to the battery voltage. Linear charger circuit is simple, relatively low cost, but should pay attention to heat dissipation problems. For example: a charging current of 1A, 2 NiMH battery charger, each cell NiMH battery end-of-charge voltage of 1.6V to 1.7V, but may be as high as 2V, depending on the battery and charging current. Therefore, the DC supply voltage must be greater than 2 × 2 = 4V. Single-cell NiMH battery is fully discharged voltage may be reduced to 0.9V. Even so, the voltage of the battery pack should be 2 × 0.9 = 1.8V. If using a standard +5 V DC power supply, the differential pressure of the transistor 5V-1.8V = 3.2V. To completely discharge the battery when charging, the charger will consume 3.2W electricity, battery power consumption of 1.8W, the charging efficiency is only 36%. Therefore, the linear structure is more suitable for better heat dissipation external charger (also known as the cradle of charger).
The battery charger of some of the larger size, including notebook computers, portable devices will be placed within the system as a component of the system. At this point, the charger's efficiency is essential, this is not to be able to transfer maximum energy, just in order to reduce heat. Heat temperature rise, while the battery in high temperature environment may shorten the life. The charger should use a pulse charger, because its power dissipation is relatively small and has nothing to do with the input-output differentials, Figure 1b) is the pulse charger of the DS2712 configuration requirements to maintain efficiency, the entire battery voltage range. The main disadvantage of the pulse charger is required inductor and capacitor filter, in order to switch the output voltage into a DC voltage suitable for battery. Another drawback of this regulator: the switching process will produce noise, through appropriate wiring and shielding, filtering measures to avoid.
NiMH battery charging control
NiMH battery charging, the battery is fully charged, the terminal voltage rises to a maximum and then begin to decline. When the terminal voltage drop dv / dt becomes negative, it should terminate the fast charge mode, otherwise, the battery charge current will electrolysis of water into hydrogen and oxygen, lead battery scrap. In order to ensure terminate the fast charge mode before the battery is damaged, the charger needs to detect the terminal voltage of the NiMH battery, and to terminate the fast charge mode when the voltage reaches the maximum value that is, dv / dt = 0, or slightly below 0.
On the voltage detection charger monitors the battery temperature, charging time, as an auxiliary or back-up protection scheme. Figure 2 is a DS2711/DS2712 the internal charging control process. There are three ways to start a full charge process: Insert the battery Insert the battery case connected to the charger power; connected to the charging power supply; to lift the charge suspend mode. Each charge from the pre-charge, pre-charging process to a smaller current to charge the battery to charge the battery voltage to 1V, to prevent deep discharge of the battery fast charging, but also to avoid charging the battery in extreme temperatures.
The rapid charging process, The DS2711 / D S2712 battery do further testing to determine whether the battery alkaline battery or waste, damage the NiMH batteries provide reliable protection for the system. When the battery open circuit voltage between 1.0V to 1.75V between the battery temperature is below +50 ° C (based on the THM1, THM2 voltage), the charger will continue to fast charge current to charge the battery, once detected,-ΔV, will immediately to terminate the fast charge process. The fast charge after the end of the floating stage, after the end of the float cycle into the holding phase, the completion of a full charging process. The maximum voltage detection, temperature and charging time monitoring is always accompanied by the entire charging process for the system to provide secondary protection against overcharge.
The detection of primary cells
The DS2711/DS2712 standard NiMH battery charger is able to detect the primary cells (batteries or non-rechargeable batteries) to avoid charge. We collected several new and old NiMH rechargeable batteries and alkaline primary batteries, these batteries charge and impedance testing, because the battery impedance depends largely on the remaining battery or charging status using the DS2711, we choose 4 kinds of charging status: full, low battery, empty battery and the battery is depleted. "Full" refers to the NiMH battery is fully charged alkaline batteries, "full" refers to the battery just remove the packaging; and "low battery" refers to the battery discharge under a 50mA load to 1.2V;, "Empty" refers to the battery discharge under a 50mA load to 0.8V; run out of battery "means the battery is discharged to 0.0V under a 50mA load. When the battery when the battery is discharged to the specified state measurements, in order to calculate cheap a42-ul50the impedance of each battery. Table 1, Table 2 shows the test results.
The DS2711/DS2712 the battery impedance measurement threshold of the external resistor (RCTST) set up by the CTST. RCTST resistance is based on the required impedance gate limit and charge current calculated according to Table 1, Table 2, test results, we chose to 160mΩ judgment rechargeable NiMH battery detection threshold limit, alkaline batteries will not be able to pass the test.
DS2711 and DS2712 provides an ideal charging solution for one or two AA or AAA Standard NiMH battery, they are able to detect the alkaline primary cells and to prevent its charge. Alkaline primary battery manufacturers do not recommend their products to be charged, therefore, able to identify which batteries can be charged safely, and what not charge the battery for the charger, will be a very critical function, to provide users with additional security.
Recently sudden fire of the households in a district of Shenzhen, home burned to ruins, the cause of the fire was actually charging the phone for a few days to forget to unplug the power charger heat ignited the sofa. This news, many students are terrified when charging your wu946 laptop batterymobile phone. In fact, this is only a very few examples of mobile phone battery is not so fragile. However, proper maintenance, you can extend the service life.
A battery factory, manufacturers have carried out active treatment, and pre-charge the batteries have more than electricity, have a friend who said the battery charging in accordance with the period of adjustment time, the standby is still a serious shortage, assuming the battery is indeed the genuine battery, this case adjustment period should be extended and then fully charge and discharge of 3 to 5 times.
2 to buy a new mobile phone battery is a lithium ion, then the first 3 to 5 times the charge commonly referred to as the adjustment period, shall be filled with more than 14 hours to fully activate the activity of the lithium-ion. The lithium-ion batteries have no memory effect, but there is a strong inert, should be given to fully activate in order to ensure future use for optimal performance.
Some automated intelligent rapid charger when the lights change, only the full 90%. The charger will automatically switch to trickle charge the battery is full. The best battery is full, otherwise it will shorten the time.
Please use the original or the reputation of a good brand chargers, lithium batteries use lithium battery charger, and follow the instructions, otherwise it will damage the battery, or even dangerous.
Have many users often use the phone still charging, In fact, this will be very easy to hurt the mobile life, because in the process of charging the phone's circuit board may have a fever, then external phone, you may produce an instant return current on the phone's internal parts damage. If the situation allows, the best to turn off the phone while charging.
6 The battery life depends on repeated charge-discharge, it should try to avoid charging when the battery is more than power, it will shorten the battery life. Phone is switched off for more than 7 days, the first mobile phone battery is fully discharged and fully charged before use.
Do not expose the battery in hot or cold, like a dog day, should not phone in your car, to withstand the scorching sun exposure; or get air-conditioned rooms, on the air-conditioning blowing straight. When charging, the battery a little heat is normal, but it can not withstand high temperature "suffering". To avoid this from happening, it is best at roomreplacement a32-a8 temperature for charging, and do not cover anything on the phone.
The lithium-ion battery must use a dedicated charger, or it may not reach saturation, impact on its performance. After charging, you should avoid placing more than 12 hours on the charger when unused for long periods of separation of cells and cell phone.
A battery factory, manufacturers have carried out active treatment, and pre-charge the batteries have more than electricity, have a friend who said the battery charging in accordance with the period of adjustment time, the standby is still a serious shortage, assuming the battery is indeed the genuine battery, this case adjustment period should be extended and then fully charge and discharge of 3 to 5 times.
2 to buy a new mobile phone battery is a lithium ion, then the first 3 to 5 times the charge commonly referred to as the adjustment period, shall be filled with more than 14 hours to fully activate the activity of the lithium-ion. The lithium-ion batteries have no memory effect, but there is a strong inert, should be given to fully activate in order to ensure future use for optimal performance.
Some automated intelligent rapid charger when the lights change, only the full 90%. The charger will automatically switch to trickle charge the battery is full. The best battery is full, otherwise it will shorten the time.
Please use the original or the reputation of a good brand chargers, lithium batteries use lithium battery charger, and follow the instructions, otherwise it will damage the battery, or even dangerous.
Have many users often use the phone still charging, In fact, this will be very easy to hurt the mobile life, because in the process of charging the phone's circuit board may have a fever, then external phone, you may produce an instant return current on the phone's internal parts damage. If the situation allows, the best to turn off the phone while charging.
6 The battery life depends on repeated charge-discharge, it should try to avoid charging when the battery is more than power, it will shorten the battery life. Phone is switched off for more than 7 days, the first mobile phone battery is fully discharged and fully charged before use.
Do not expose the battery in hot or cold, like a dog day, should not phone in your car, to withstand the scorching sun exposure; or get air-conditioned rooms, on the air-conditioning blowing straight. When charging, the battery a little heat is normal, but it can not withstand high temperature "suffering". To avoid this from happening, it is best at roomreplacement a32-a8 temperature for charging, and do not cover anything on the phone.
The lithium-ion battery must use a dedicated charger, or it may not reach saturation, impact on its performance. After charging, you should avoid placing more than 12 hours on the charger when unused for long periods of separation of cells and cell phone.
The quality of the performance of the battery pack has been one of the keys to the development of new energy vehicles, and how to ensure that the battery pack charge and discharge consistency, is an important issue for world power battery technology research.
Shandong value far from the New Energy Technology Co., Ltd. R & D battery power, relying on integrated innovation, in the face of this global problem has made outstanding rn873 K450Nachievements to solve the battery power of new energy vehicles one after another technical difficulties, a common problem in the world. "Consistency" achieved a major breakthrough on the issue, authoritative identification of the Committee of Experts that their products meet the technical level of the world simultaneously, the leading domestic ".
June 16 Shandong Heng far, New Energy Technology Co., Ltd. announced production of lithium-ion battery with advanced level. From authoritative experts, representatives of the well-known enterprises, local party and government leaders and nearly 30 at the central level the mainstream media, to witness the moment.
Shandong value far from the New Energy Technology Co., Ltd. is located in Zoucheng, professional development, manufacturing, power battery, high-tech enterprises, the company's total investment of $ 140 million, covering a total area of 130,000 square meters, three will be built to achieve an annual output of various 1.2 million KWh of class power battery.
Said: "value far the company's new energy technologies is a leading world-class technology, they chose to build factories in Zoucheng is the right choice, we the municipal government do its utmost to support the balance far the development of the Zoucheng government leadership."
Lithium has a feature to overcharge and over discharge is not easy to control, like the use of mobile phones and other single-cell lithium problem, but the car used in a number of lithium batteries in series parallel with, if the consistency is poor, it likely to cause some overcharge, and some charge a shortage, affecting the entire battery life and efficiency.
Value far the integration of innovation, it is precisely this "consistency" worldwide problem breakthrough fight upstream.
Despite the identification of experts believe that the balance is far from new energy R & D series of iron phosphate lithium battery as a whole, technology has reached international advanced level, "general manager Yang Xuan-kun said modestly:" We are in this emerging industry, just sync with the world. "
Data show that the value far the new energy structure of the current convergence board design and very ear leads to the current thermal field of the plate per unit area to maintain a balanced, greatly improved battery cycle life and safety; at the same time, the choice of conductive additives, to take the classification of nano-dispersion technology, a fundamental solution to the agglomeration of slurry in the pulping process, to ensure the uniformity and stability of the cell lattice of the electrochemical process.
Is particularly worth mentioning is that the country's first products from the charge separation, automated management, to ensure the consistency requirements of the battery module, greatly improving the performance and stability of the battery pack.
According to reports, the balance far the company's investment from Hong Kong international capital. They are optimistic about the direction of the world's new energy development, and promising new energy development strategy of the Chinese government, and they are also optimistic about the value far Yang Xuan Kun, general manager of the technical level.
It is reported that the value far from the company's products during the experiment has been obtained are highly valued customers, so there are a lot of heavy users in this commissioning ceremony with the signing of a long-term strategic cooperation agreement. Including cut a striking figure in the world in recent years, Geely Automobile, Guangzhou Automobile, Great Wall Motor, Zhejiang crystal as the Lite-On Technology Co., Ltd., China's Sinotrans Shandong Company, new pine robots and other famous enterprises.
Yang Xuan-kun said that the main purpose of the company's products for electric vehicles, UPS, grid energy storage, coal mine machinery, electric bicycles, and other areas, the existing lithium iron phosphate power battery 10Ah, 20Ah, 50Ah, 100Ah and 10Ah manganesekd476 laptop battery lithium products, as well as provide customers with the ISG, HEV, PHEV, EV and electric bus powertrain. Iron phosphate lithium battery in the Beijing Olympic Games, Shanghai World Expo will be applied in many automobile plant to be verified.
As the country's new energy vehicle development plan to accelerate the enormous power battery industry in China market development space. Yang Xuan-kun said that the new energy value far with several major OEMs signed a strategic cooperation agreement in Zoucheng bus vehicle production base, and the introduction of new energy vehicles powertrain ion diaphragm, automotive brake pads, motor , electronic control and new energy auto parts industry.
Shandong value far from the New Energy Technology Co., Ltd. R & D battery power, relying on integrated innovation, in the face of this global problem has made outstanding rn873 K450Nachievements to solve the battery power of new energy vehicles one after another technical difficulties, a common problem in the world. "Consistency" achieved a major breakthrough on the issue, authoritative identification of the Committee of Experts that their products meet the technical level of the world simultaneously, the leading domestic ".
June 16 Shandong Heng far, New Energy Technology Co., Ltd. announced production of lithium-ion battery with advanced level. From authoritative experts, representatives of the well-known enterprises, local party and government leaders and nearly 30 at the central level the mainstream media, to witness the moment.
Shandong value far from the New Energy Technology Co., Ltd. is located in Zoucheng, professional development, manufacturing, power battery, high-tech enterprises, the company's total investment of $ 140 million, covering a total area of 130,000 square meters, three will be built to achieve an annual output of various 1.2 million KWh of class power battery.
Said: "value far the company's new energy technologies is a leading world-class technology, they chose to build factories in Zoucheng is the right choice, we the municipal government do its utmost to support the balance far the development of the Zoucheng government leadership."
Lithium has a feature to overcharge and over discharge is not easy to control, like the use of mobile phones and other single-cell lithium problem, but the car used in a number of lithium batteries in series parallel with, if the consistency is poor, it likely to cause some overcharge, and some charge a shortage, affecting the entire battery life and efficiency.
Value far the integration of innovation, it is precisely this "consistency" worldwide problem breakthrough fight upstream.
Despite the identification of experts believe that the balance is far from new energy R & D series of iron phosphate lithium battery as a whole, technology has reached international advanced level, "general manager Yang Xuan-kun said modestly:" We are in this emerging industry, just sync with the world. "
Data show that the value far the new energy structure of the current convergence board design and very ear leads to the current thermal field of the plate per unit area to maintain a balanced, greatly improved battery cycle life and safety; at the same time, the choice of conductive additives, to take the classification of nano-dispersion technology, a fundamental solution to the agglomeration of slurry in the pulping process, to ensure the uniformity and stability of the cell lattice of the electrochemical process.
Is particularly worth mentioning is that the country's first products from the charge separation, automated management, to ensure the consistency requirements of the battery module, greatly improving the performance and stability of the battery pack.
According to reports, the balance far the company's investment from Hong Kong international capital. They are optimistic about the direction of the world's new energy development, and promising new energy development strategy of the Chinese government, and they are also optimistic about the value far Yang Xuan Kun, general manager of the technical level.
It is reported that the value far from the company's products during the experiment has been obtained are highly valued customers, so there are a lot of heavy users in this commissioning ceremony with the signing of a long-term strategic cooperation agreement. Including cut a striking figure in the world in recent years, Geely Automobile, Guangzhou Automobile, Great Wall Motor, Zhejiang crystal as the Lite-On Technology Co., Ltd., China's Sinotrans Shandong Company, new pine robots and other famous enterprises.
Yang Xuan-kun said that the main purpose of the company's products for electric vehicles, UPS, grid energy storage, coal mine machinery, electric bicycles, and other areas, the existing lithium iron phosphate power battery 10Ah, 20Ah, 50Ah, 100Ah and 10Ah manganesekd476 laptop battery lithium products, as well as provide customers with the ISG, HEV, PHEV, EV and electric bus powertrain. Iron phosphate lithium battery in the Beijing Olympic Games, Shanghai World Expo will be applied in many automobile plant to be verified.
As the country's new energy vehicle development plan to accelerate the enormous power battery industry in China market development space. Yang Xuan-kun said that the new energy value far with several major OEMs signed a strategic cooperation agreement in Zoucheng bus vehicle production base, and the introduction of new energy vehicles powertrain ion diaphragm, automotive brake pads, motor , electronic control and new energy auto parts industry.
New energy vehicles is very demanding on the battery, you must have a high specific energy, high specific power, fast charging and deep discharge performance, and require the lowest possible cost, use TING, as long as possible. The traditional lead-acid batteries, nickel-cadmium batteries and nickel-metal hydride battery technology itself is relativelyDF192 mature, but they are used in car batteries as a power, there is a big problem. At present, more and more car manufacturers to choose the car battery uses lithium as a new energy.
The lithium battery has the following advantages: small size, light weight, high voltage (nickel-cadmium batteries, nickel hydrogen batteries 3 times) than the energy (up to 165WH / kg, three times that of nickel-hydrogen batteries), cyclic Life long, low self-discharge, no memory effect, no pollution, and security.
A power lithium battery development status
New energy vehicles gradually replace traditional gasoline car has become the consensus of the national development of the automotive industry, as a core component of the battery power is even more businesses and investors are optimistic. The battery power is the key to the development of new energy vehicles: hybrid cars are the best transition products, but the pure battery car is the future direction of the core technology breakthrough in battery technology.
China's new energy automotive battery industry started later than in Europe and America, but the development is very fast, also put a lot of financial and material resources in research and development of lithium batteries. 863 plans to establish electric vehicle major projects, the Institute of Physics of Chinese Academy of Sciences, Beijing Nonferrous Metal Research Institute, China Electronics Technology Group Corporation 18th Research Institute and other units to participate in the project, has developed two types of motive power batteries for EV and HEV Some of these units have been safe manganese system, the cathode active material. Give strong support to the "Eleventh Five-Year", 863 major projects for electric vehicles HEV, PHEV (plug-in hybrid vehicles), FCV (fuel cell vehicles) key to power lithium-ion battery materials and battery research and development.
Problems encountered in two-power lithium battery development
The bottleneck impeding the development of lithium-ion battery: safety performance, and vehicle power battery management system.
Safety performance lithium-ion battery energy density, high operating temperature, and poor working conditions, reasons, coupled with the concept of people-centered security, the safety of the battery proposed a very high demand. Vehicle power battery management systems, vehicle power battery voltage is 12V or 24V single power lithium-ion battery voltage is 3.7V, so must be performed by multiple cells in series to increase voltage, but difficult to achieve due to the battery completely homogeneous charge and discharge, so the series more than one battery pack within a single battery charge and discharge unbalanced situation, the battery will charge and over-discharge phenomenon, and this situation can lead to battery performance deteriorated sharply, and ultimately lead to the entire group of cells does not work, or even scrapped, thus significantly affect battery life and reliability.
Power lithium-ion battery to get a good application, to consider technically from the many at the same time of the materials, battery management systems, machining. Therefore, manufacturers and downstream enterprises of the need for lithium Electronic Health work together to request materials, management systems and other battery, the formation of an industry group, more conducive to technological progress and the system cost reduction.
3 power lithium battery materials
Lithium battery materials can be divided into electrode (cathode / anode) materials, separator and electrolyte. The cathode material is lithium, lithium cobalt oxide, lithium manganese, nickel, cobalt and manganese, lithium and phosphate lithium iron. The anode material while graphite, solid carbon-based; in the middle of the positive and negative battery electrolyte and diaphragm.
3.1 The cathode material
Previously, the cost of lithium batteries is the reason why higher than the nickel-metal hydride batteries, the main reason for its cathode material is lithium cobalt oxide, lithium manganese oxide and lithium iron phosphate precious metals cobalt raw material cost advantage is more obvious; However, with compared to the lithium manganese oxide, the higher the capacity of the density of the lithium iron phosphate, the former 100-115mAH / g, the latter 130-140mAH / g; longer life of the charge and discharge, the former more than 500 times, the latter up to 1500 times above; operating temperature range, the former is 0 to 50 ° C -40 to 70 ° C, the latter. Therefore, in the lithium-ion battery, lithium iron phosphate is the most promising.
Because of high barriers to entry in the current production of the lithium battery industry chain comparison, the lithium battery cathode material production is the smallest, which is the most promising aspect of the whole industry chain.
3.2 anode materials
Compared with the cathode material, anode material accounted for the lower proportion of the cost of lithium batteries, but the country has to achieve industrialization, the anode material graphite, solid carbon. The top three companies for the domestic production of lithium battery cathode material is the Chinese national security, Shanshan, long sand sea capacity anode material can basically meet the domestic needs of the market, but with the increasing popularity of new energy vehicles, the next one the market The demand will be a massive shortfall.
3.3 electrolyte
Domestic battery manufacturers supporting electrolyte has been basically achieved domestically. The main raw material of the electrolyte for lithium hexafluorophosphate, accounting for about 50 percent of the cost of the electrolyte, its production cost is 10 yuan / ton, is priced at 400,000 yuan / ton, up to 75% gross margin, currently on the market are basically the Kanto electricity chemical industry, SUTERAKEMIFA, Morita Chemical, several Japanese companies are monopolies. Therefore, we solved the problem of the mass production of lithium battery electrolyte is the most critical electrolyte composition of lithium hexafluorophosphate (LiPF6). Only this key technology breakthrough, the lithium battery industry chain of China's automobile power to close to perfect.
Now the basic balance of market supply and demand of the world's lithium battery electrolyte, lithium battery electrolyte requirements, but the amount rarely. For example, a mobile phone batteries only 3 grams, a very small proportion of the 2000 tons of electrolyte available for the production of 600 million mobile phone batteries. Car battery power is not the same, the car will be 40 kg. Once the rise of electric vehicles will bring the explosive growth of the electrolyte.
3.4 diaphragm
With the gradual promotion of new energy vehicles, power lithium battery materials demand will be detonated. Diaphragm Department of lithium materials on Technical Barriers to a high value-added materials, gross profit margin is usually 70% or more, accounting for 20-30% of the cost of lithium batteries. According to the calculations, the car can be used to 1000-2000 m2 membrane. Divide the market supply is a serious shortage, most dependent on imports, the market dominated by Japanese Asahi Chemical Industry, Tonen Chemical and Celgard control. The diaphragm has the typical characteristics of high technology, high capital, and the project cycle is very long, risky investment, domestic enterprises' investment enthusiasm is not high.
4-power lithium battery development prospects
According to the 2008-2010 China's new energy automotive industry analysis and investment consultation report, combined with the development trend of China's energy resources and the international automotive technology, is expected by 2012, annual output of new energy vehicles will reach 1 million, while 2025, regular gasoline car, passenger cars accounted ownership is expected only about 50% of new energy vehicles and advanced diesel vehicles, gas, automotive, bio-fuel vehicles will be rapid development.
New energy car alternative to traditional car trend of the future will be the inevitable powe9cells F287Hr lithium batteries as a new energy vehicles "heart", will give rise to large industrial economic effects, battery raw material suppliers and vendors are huge commercial cake.
Expected by 2012, the annual production of new energy vehicles will reach 1 million cost of each new energy automotive batteries, power lithium battery cathode material lithium iron phosphate 52 kg, 41 kg of anode material, electrolyte 40 kg calculations. 1 million hybrid cars will drive the 52,000 tons of cathode material, anode material of 41,000 tons, 40,000 tons of electrolyte needs. For domestic battery manufacturers, it will be a big cake for a total output value of 70 billion yuan. Calculated by bus, this value will increase three times - each hybrid bus battery demand is four times that of cars.
The lithium battery has the following advantages: small size, light weight, high voltage (nickel-cadmium batteries, nickel hydrogen batteries 3 times) than the energy (up to 165WH / kg, three times that of nickel-hydrogen batteries), cyclic Life long, low self-discharge, no memory effect, no pollution, and security.
A power lithium battery development status
New energy vehicles gradually replace traditional gasoline car has become the consensus of the national development of the automotive industry, as a core component of the battery power is even more businesses and investors are optimistic. The battery power is the key to the development of new energy vehicles: hybrid cars are the best transition products, but the pure battery car is the future direction of the core technology breakthrough in battery technology.
China's new energy automotive battery industry started later than in Europe and America, but the development is very fast, also put a lot of financial and material resources in research and development of lithium batteries. 863 plans to establish electric vehicle major projects, the Institute of Physics of Chinese Academy of Sciences, Beijing Nonferrous Metal Research Institute, China Electronics Technology Group Corporation 18th Research Institute and other units to participate in the project, has developed two types of motive power batteries for EV and HEV Some of these units have been safe manganese system, the cathode active material. Give strong support to the "Eleventh Five-Year", 863 major projects for electric vehicles HEV, PHEV (plug-in hybrid vehicles), FCV (fuel cell vehicles) key to power lithium-ion battery materials and battery research and development.
Problems encountered in two-power lithium battery development
The bottleneck impeding the development of lithium-ion battery: safety performance, and vehicle power battery management system.
Safety performance lithium-ion battery energy density, high operating temperature, and poor working conditions, reasons, coupled with the concept of people-centered security, the safety of the battery proposed a very high demand. Vehicle power battery management systems, vehicle power battery voltage is 12V or 24V single power lithium-ion battery voltage is 3.7V, so must be performed by multiple cells in series to increase voltage, but difficult to achieve due to the battery completely homogeneous charge and discharge, so the series more than one battery pack within a single battery charge and discharge unbalanced situation, the battery will charge and over-discharge phenomenon, and this situation can lead to battery performance deteriorated sharply, and ultimately lead to the entire group of cells does not work, or even scrapped, thus significantly affect battery life and reliability.
Power lithium-ion battery to get a good application, to consider technically from the many at the same time of the materials, battery management systems, machining. Therefore, manufacturers and downstream enterprises of the need for lithium Electronic Health work together to request materials, management systems and other battery, the formation of an industry group, more conducive to technological progress and the system cost reduction.
3 power lithium battery materials
Lithium battery materials can be divided into electrode (cathode / anode) materials, separator and electrolyte. The cathode material is lithium, lithium cobalt oxide, lithium manganese, nickel, cobalt and manganese, lithium and phosphate lithium iron. The anode material while graphite, solid carbon-based; in the middle of the positive and negative battery electrolyte and diaphragm.
3.1 The cathode material
Previously, the cost of lithium batteries is the reason why higher than the nickel-metal hydride batteries, the main reason for its cathode material is lithium cobalt oxide, lithium manganese oxide and lithium iron phosphate precious metals cobalt raw material cost advantage is more obvious; However, with compared to the lithium manganese oxide, the higher the capacity of the density of the lithium iron phosphate, the former 100-115mAH / g, the latter 130-140mAH / g; longer life of the charge and discharge, the former more than 500 times, the latter up to 1500 times above; operating temperature range, the former is 0 to 50 ° C -40 to 70 ° C, the latter. Therefore, in the lithium-ion battery, lithium iron phosphate is the most promising.
Because of high barriers to entry in the current production of the lithium battery industry chain comparison, the lithium battery cathode material production is the smallest, which is the most promising aspect of the whole industry chain.
3.2 anode materials
Compared with the cathode material, anode material accounted for the lower proportion of the cost of lithium batteries, but the country has to achieve industrialization, the anode material graphite, solid carbon. The top three companies for the domestic production of lithium battery cathode material is the Chinese national security, Shanshan, long sand sea capacity anode material can basically meet the domestic needs of the market, but with the increasing popularity of new energy vehicles, the next one the market The demand will be a massive shortfall.
3.3 electrolyte
Domestic battery manufacturers supporting electrolyte has been basically achieved domestically. The main raw material of the electrolyte for lithium hexafluorophosphate, accounting for about 50 percent of the cost of the electrolyte, its production cost is 10 yuan / ton, is priced at 400,000 yuan / ton, up to 75% gross margin, currently on the market are basically the Kanto electricity chemical industry, SUTERAKEMIFA, Morita Chemical, several Japanese companies are monopolies. Therefore, we solved the problem of the mass production of lithium battery electrolyte is the most critical electrolyte composition of lithium hexafluorophosphate (LiPF6). Only this key technology breakthrough, the lithium battery industry chain of China's automobile power to close to perfect.
Now the basic balance of market supply and demand of the world's lithium battery electrolyte, lithium battery electrolyte requirements, but the amount rarely. For example, a mobile phone batteries only 3 grams, a very small proportion of the 2000 tons of electrolyte available for the production of 600 million mobile phone batteries. Car battery power is not the same, the car will be 40 kg. Once the rise of electric vehicles will bring the explosive growth of the electrolyte.
3.4 diaphragm
With the gradual promotion of new energy vehicles, power lithium battery materials demand will be detonated. Diaphragm Department of lithium materials on Technical Barriers to a high value-added materials, gross profit margin is usually 70% or more, accounting for 20-30% of the cost of lithium batteries. According to the calculations, the car can be used to 1000-2000 m2 membrane. Divide the market supply is a serious shortage, most dependent on imports, the market dominated by Japanese Asahi Chemical Industry, Tonen Chemical and Celgard control. The diaphragm has the typical characteristics of high technology, high capital, and the project cycle is very long, risky investment, domestic enterprises' investment enthusiasm is not high.
4-power lithium battery development prospects
According to the 2008-2010 China's new energy automotive industry analysis and investment consultation report, combined with the development trend of China's energy resources and the international automotive technology, is expected by 2012, annual output of new energy vehicles will reach 1 million, while 2025, regular gasoline car, passenger cars accounted ownership is expected only about 50% of new energy vehicles and advanced diesel vehicles, gas, automotive, bio-fuel vehicles will be rapid development.
New energy car alternative to traditional car trend of the future will be the inevitable powe9cells F287Hr lithium batteries as a new energy vehicles "heart", will give rise to large industrial economic effects, battery raw material suppliers and vendors are huge commercial cake.
Expected by 2012, the annual production of new energy vehicles will reach 1 million cost of each new energy automotive batteries, power lithium battery cathode material lithium iron phosphate 52 kg, 41 kg of anode material, electrolyte 40 kg calculations. 1 million hybrid cars will drive the 52,000 tons of cathode material, anode material of 41,000 tons, 40,000 tons of electrolyte needs. For domestic battery manufacturers, it will be a big cake for a total output value of 70 billion yuan. Calculated by bus, this value will increase three times - each hybrid bus battery demand is four times that of cars.