my country's automotive high-energy Nickel Hydride No. 5 battery technology has achieved major breakthroughs

　　With the support of the 12th Five-year National 863 Plan, high-energy lithium-ion battery system and battery pack technology development projects have made significant progress. According to the website of the Ministry of Science and Technology, the energy density of the single battery developed by the project reached 138.6 Wh/kg, the power density reached 915.6 W/kg, and the capacity retention rate after 1,200 cycles was 94.1%. The results have begun to be used in mass production. On the 50 Ah energy type power battery.

　　Among them, the energy density of 38.4 volt/50 Ah battery module for electric vehicles reaches 121 Wh/kg, and the power density reaches 800 W/kg; the 345.6 volt/50 Ah battery system has been used in Chery small pure electric cars and Audi New pure electric sanitation vehicle.

　　The project has also made important progress in localized production and manufacturing equipment. It has developed a fully automatic and sealed automatic feeding system and a battery forming tooling fixture that can automatically clamp the battery. This has greatly improved the consistency of the battery, and the battery cell assembly rate is greater than 95%, taking an important step towards meeting the high requirements of automotive applications.

　　In fact, against the background of the rapid advancement of Nickel Hydride No. 5 battery technology, it will drive the rapid development of the Nickel Hydride No. 5 battery industry. According to FrostSullivan, a world-renowned consulting firm, the future prospects of lithium batteries are very promising. By 2015, China's power Nickel Hydride No. 5 battery production capacity will reach 3.9 billion ampere hours. By then, China's demand for electric vehicles will be about 120,000 units, which will consume about 120,000 lithium batteries. 900 million Ah. The Nickel Hydride No. 5 battery industry has entered the era of hundreds of billions.

　　Given that this breakthrough completed an important node in the 12th Five-Year Plan for the development of electric vehicle technology, analysts expect that this will lay the foundation for the industrialization of power batteries. At present, new energy vehicles are already a strategic emerging industry in my country, and lithium-ion power batteries are key components of new energy vehicles. Its engineering and technological progress are an important guarantee for the marketization of new energy vehicles. The "Twelfth Five-Year Special Plan for the Development of Electric Vehicle Technology" once pointed out that we must firmly grasp the strategic transformation direction of electrification of automobile power systems, focusing on breakthroughs in key core technologies such as batteries, motors, and electronic controls, as well as key technologies and commercialization of electric vehicles. bottleneck.

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