“Energy saving and new energy vehicles” office of major project is the Ministry of Science and Hi-Tech Division (863 modern communication technology, office) under the jurisdiction of bodies of project management.

Ultra-billion yuan from the fund of the State Development to help stimulate the domestic manufacturers are scrambling to join the ranks of the hydrogen fuel battery research vehicle.

In addition to SAIC, Chery, etc. in the “Tenth Five-time” Year of the companies involved in research and development, Foton join too. In addition to SAIC’s field of cars to hydrogen fuel battery in the passenger area.

The main board short – life of hydrogen fuel batteries

In hydrogen fuel battery R & D car to Roewe 750 based on the “car fuel battery Shanghai” brand in China has developed the fourth generation of cars to hydrogen fuel battery, China represents the most advanced level. Of its supply system of fuel PB991A PB992A batteries in hydrogen fuel battery Shanghai Vehicle Power System Co., Ltd. Development.

And third vehicle energy production of batteries “Beyond the Three” from “Shanghai” brand fuel battery sedan vehicle dynamic performance, a more powerful and effective. Acceleration 0-100 km to 19 seconds for 15 seconds, a time of hydrogen continues to extend the charging mileage 300 km from 230 km above the maximum speed of 120 km to 150 km. In addition, it is a higher degree of the integration, vehicle stability, reliability has also been enhanced.

Similarly, the fourth generation of power systems equipped with Shanghai Volkswagen Passat Passat, Chery Oriental Son has a top speed of up to 150 km, 0-100km acceleration time of less than 15 seconds, filling a gas Hydrogen can travel 300 km, the performance does not differ much with the international advanced level.

In addition, Dongfeng Automobile also entered the field of fuel battery vehicles to hydrogen. In August 2004, Dongfeng Motor and Wuhan University of Technology, in collaboration with the Elysee as a platform, a car developed hydrogen fuel D5318 HD438 battery – “Chutian One.” It is equipped with a hydrogen fuel battery of 25 kW as the engine, the maximum speed of 103 kilometers, but a shorter distance endurance.

Hydrogen bus fuel battery research and development in early 2002, the Tsinghua University as a unit of lead, with Dongfeng Motor Corporation, Beijing Bus Plant and five other units of the whole group, the bear National “Tenth-Five” 863 Year Plan for Fuel Battery Bus Project City search. Tsinghua University has also made clear to China Beijing Tong Technology Development Co., Ltd as an industry based carrier.

Currently, the most recent Taiwan bus fuel battery with hydrogen to reach a maximum speed of 90 km / h, a maximum mileage of hydrogenation of 300 km, engine power 100 kW . This is the advanced international level, there is a significant gap. IBM ThinkPad T40 battery  IBM ThinkPad T41 battery

November 15, 2007, marketing projects in China bus demonstration fuel battery to begin the second phase of bidding to provide Shanghai 3 ~ 6 working condition for the Shanghai Urban Transit bus fuel battery one of two pilot years.

Relevant experts suggest that China has developed a bus fuel battery, the Chinese government has invested a lot of money. Abroad, the high cost of bus fuel battery, to promote the formulation of China policy and the establishment of standards and regulations, the proposed fuel-battery cars in China may also be added in the ranks of demonstration runs.

In the engine control technology vehicles, the level of leading domestic and international level despite the differences, but this is not the most important development of hydrogen fuel batteries difficult. The key issue lies in the hydrogen and the power of A1022 A1078 battery life.

Wang Binggang said that the current fuel battery hydrogen internal stability of life is still about 2000 hours, well below the hour international Baqian Qi. Power battery life less than two years, while Japan is 3 to 5 the most advanced years.

It should be noted that multinational companies were involved in vehicle fuel-battery home.

The second approach – in collaboration with the multinational

In 2004, GM and SAIC signed a clean-energy vehicles strategic cooperation framework agreement, both parties reach an agreement: access “Hydrogen III battery vehicle hydrogen fuel from the first quarter of 2005 in China, one of two pilot operation years. General Motors in 2002 introduced “Hydrogen III” as a basis, the Pan Asia Technical Automotive Center in North America and General Motors German engineering under the direction of a series of integration and the Pan Asia Technical Automotive Center will responsible for the vehicle’s future operation and maintenance.

In 2001, SAIC Group and General Motors joint venture between China’s Pan Asia Technical Automotive Center in Shanghai, with respect to the Buick GL8 presented a BATBL50L6 LCBTP03003 prototype vehicle fuel battery called Phoenix.

China 2005 marketing bus fuel battery demonstration project bidding, General Motors, SAIC has supported to participate in the project submission, and provide fuel when the most advanced systems-GM training batteries. Currently, Shanghai Volkswagen Passat also produces battery vehicles to hydrogen fuel, but will participate in transport services during the Beijing Olympics.

Former Vice President of SAIC Wang Ta-General said, because a number of colleges and universities support the program 863, and may not be appropriate to give the latest global technologies to SAIC fuel vehicle hydrogen fuel battery research and development does not rely entirely on 863 plans, in cooperation with multinational corporations are too.

SAIC person who fails to disclose in research and development activities which form of cooperation. However, journalists have learned that domestic firms in the electronic engine control, control technologies for vehicles, both traditional energy sources, or developing new energy vehicles, are cooperation with multinational companies, as Bosch GmbH of Germany to develop technologies for electronic engine control.

The reporter noticed a cooperation agreement with SAIC GM also include “Development of vehicle fuel battery hydrogen from China to contribute to standards and rules,” such provisions. Therefore, do not exclude the use of SAIC-GM vehicle fuel PA3591U-1BRS  PA3191U-4BRS battery with hydrogen on the Chinese standard setting influence.

For civilian use nickel-metal hydride batteries are low Ni – MH, Ni (OH) 2, the cathode alloy storing hydrogen as a negative electrode, alkaline potassium hydroxide aqueous solution as electrolyte. Ni-MH indicators form factor battery and broadly consistent with the nickel-cadmium IBM ThinkPad T41 battery  IBM ThinkPad T42 battery. Comparisons of performance indicators, there are many different places, but a number of nickel-hydride batteries in metal have their own unique advantages, the most important event is the nickel-metal hydride battery that the density of energy (that is, an equal volume of Ni-MH battery as nickel – cadmium batteries have greater capacity), in theory, Ni-MH battery is the energy density of nickel – 1.5-2 times cadmium batteries, Ni also environmentally-MH battery is good, and the nickel-metal hydride battery has largely eliminated the effect of “memory”. Therefore, Ni-MH battery memory is not accurate to say that. Memory effect – is the application of nickel-cadmium batteries, because the traditional sintering process is extremely negative, cadmium and coarse grains, while nickel-cadmium battery is completely discharged before they are Re – load, easier to collect Manifold Ershi grain cadmium battery discharge formed when the secondary discharge plateau. Discharge of the battery is stored in the platform and the next cycle will end at discharge, although the capacity of the battery itself, can discharge the battery to a lower platform. In the process of subsequent rejection of the battery does remember the volume low. Similarly, each time you use it, anyone not fully perform all will deepen this effect, so that the battery capacity becomes low.

No talk then use the fairly:

Under normal circumstances, the new nickel-metal hydride batteries contain a small amount of electricity we buy on driving charge and then reuse. However, if time battery plant is quite short, electricity is sufficient to recommend use first and then reload. Dell Inspiron 1501 battery  Dell Inspiron 1520 battery

The new nickel-metal hydride batteries to buy a general charge to go through 3-4 times and use of, performance can play in the best condition, many of my friends for the first time, the prosecution encountered a small problem, for example, the first charge did not imagine the number of PP film as 呀? In the 3-4 times after charging and the use of all be resolved.

Although Ni-MH battery memory effect is small, as much as possible is recommended after each use finished loading and is full of time, do not charge you would use for one count and then.

The long-term unused nickel-metal hydride batteries in the store a few months later, the battery naturally in hibernation “state”, the battery life considerably reduced. If Ni-MH battery has been placed for a very long time, I suggest you begin with the slow charge is appropriate to impose. For another important issue at stake here: for Ni-MH battery, the battery must be completely discharged, then save, store, or online? Both points of view very different from what it should be used? Many people think that we should adopt the first, but I thought that to save the  371785-001 417066-001 battery charge is reasonable. Because: According to tests, Ni-MH battery to save the best conditions to save about 80% charged. Because the nickel-metal hydride batteries self-discharge rate is high (10% -15% per month or almost), if the battery is completely discharged, then save it for a long time not to use the ‘battery-discharge phenomenon will discharge excessive battery, may damage the battery.

Do not nickel hydride metal discharge the battery, excessive discharge may cause the failure of pricing to harm is much greater than Ni-MH battery memory effect of the battery itself!

Charger can be divided into fast charge and trickle charge. Low load current is small, typically around 200 mA, such as our common load current is about 160mA. His long-time charge, 1800mAh Ni-MH battery should be 16 hours or more. Even if I was a little slow, but the charge would be filled very full, and do not hurt the battery. Fast charge current is usually in the more than 400mA, charging time significantly reducing the number of .3 to 4 hours can manage that, but also won the affection of all. Several types of fast charge, prices vary. Therefore, we often have questions about the same load faster, why the price is a big gap in it? Good charger in particular is a good fast charge brought against over-charging protection function, for example, we have a common understanding Acura Panasonic BQ 390 charger has been particularly noteworthy in this regard, excellent software for the chip the ability to load battery, we also faster damage on the battery charge reduced to a minimum. VGP-BPS10 VGP-BPS13A/B

Conflict: trickle charge does not hurt the battery charging time is too long, however; fast charge can save time, but there is damage to the battery, even if the surface is the world need the best degree Panasonic BQ390 charger only very good in reducing injuries, but can not be totally avoided. Contradiction can be resolved is to buy a quick charge and a trickle charge. Quick charge with the load for some time, for example, 5.10 times after the transition to slow Chong Chongdian once or twice. This battery performance to return to a higher state.

Top of the range of NI-MH battery charger with battery test delta-V to determine if the battery is full. When the curve of discharge voltage of the battery and is somewhat similar to the beginning of a more rapid rise, followed by rising slowly until the stuffing is good, the tension began to decline rapidly, but decrease in not very large. Before commonly used nickel, cadmium batteries are also similar, but drop the speed and the amplitude was higher than the NI-MH. Most chargers on the market type (less expensive) is often used is the value of the charge pressure, such as the elderly GP 1.4V Rechargeable value Po is the pressure that is precipitated at 1.4V when the battery voltage, because there is no difference, and charge on the end. Such a result is often that the battery can not be bridged, particularly in some older battery due to increased internal resistance, the real addition to the low voltage PA3534U-1BRS  PA3591U-1BRS battery. And these charger currents tend to be smaller, often charging more than 10 hours. Using Delta-V cutoff automatic charger, since it can precisely control the load time, use may be more reliable high-current load. High charging current nickel-metal hydride battery for damage and do not want to imagine the contrary, the use of DC current, but also require high current load. The first is a matter of time, not talk. Then, Ni-MH battery has a characteristic, that is, the higher your current rate, it can release the most common, and now is tigre DC electric current is not small, so relatively speaking the use of relatively large load current is a choice, you can clean the battery _ is added. General 5 charge current should not exceed 1.5 C, C to the battery capacity is 1000MAH batteries, not more than 1.5A. I usually carried with the load 0.5C (my charger with adjustable current). Discharge zone, in normal circumstances, DC Black can be a burden on Na Qu, NI-MH little memory effect. However, in a period of time after use, and the balance of the cell to activate the battery when the battery discharge and control the termination voltage. NI-MH battery termination voltage of 0.9 V, the discharge time careful not to over-discharge, the 0.9V for each battery when it may stop the rejection file. NI-MH batteries is not powerful nickel-cadmium batteries, the overcharge and over discharge and are more sensitive to high temperatures. Charge and discharge temperature. In general, do not let the battery temperature exceeds 45 degrees. When the battery is fully charged, the battery will be hot, filled with large current when the temperature is 42 degrees and not more than 45 degrees, otherwise life will soon be reduced, the battery internal resistance will increase. Also, the load of the battery temperature is higher, and so on until after the cooling of its rechargeable battery, charging money for having to wait for the freshness of the battery. After a long time is not re-using, it is preferable to activate the battery to discharge a few times. Usually used in time to pay attention to maintaining the integrity of the wrapping paper, can not be broken in order to prevent short circuits. Do not fight the impact of the  BATCL50L battery, do not fire and so on.