How should automotive Nickel Hydride Batteries testing be conducted?

"Product quality issues are the main cause of recent new energy vehicle fires." Ouyang Minggao, an academician of the Chinese Academy of Sciences and executive vice president of the China Electric Vehicle Hundred People's Association, bluntly said that the main factors include insufficient testing and verification of Nickel Hydride Batteries products, deterioration of reliability during vehicle aging, low level of charging safety management technology, and the failure of some products to strictly comply with relevant technical standards and specifications during design verification and use.

Ouyang Minggao bluntly stated that some companies blindly pursue high specific energy in order to obtain subsidies, shorten the testing and verification time of Nickel Hydride Batteries products, and the short technical verification cycle leads to insufficient technical verification and immature engineering solutions, which is one of the main causes of product quality problems.

According to statistics from relevant agencies, the investment in the entire new energy vehicle industry chain in 2017 exceeded 700 billion yuan, accounting for more than 50% of the total investment in the automobile industry. The momentum of the development of new energy vehicles can be seen.

It is worth noting that the development of China's new energy vehicle technology has long been driven by subsidy policies. As the subsidy policy continues to increase the requirements for the energy density of power batteries, the energy density index of power batteries has been significantly improved.

Ouyang Minggao believes that there is no problem in linking subsidies to the energy density of power batteries, but it must comply with the law of technological development. The improvement of energy density should not be too fast or too frequent, and the pace of new energy vehicle development must be stable.

"The subsidy reduction policy cycle changes every year, which does not match the product development cycle." Ouyang Minggao said that frequent adjustments to subsidy policies are not conducive to product quality verification. Generally speaking, the development cycle of power Nickel Hydride Batteries materials generally takes 24-28 months. Some companies blindly pursue high specific energy in order to obtain subsidies, and they are eager for quick success and instant benefits in the process of technical verification, shortening the test verification time.

In Ouyang Minggao's view, the development of high-energy-density batteries is an inevitable trend, which puts higher requirements on safety technology. However, safety technology cannot rely solely on the material itself, but must start from the system. He suggested that the annual safety inspection specifications for electric vehicles, as well as the specifications for electric vehicle black boxes and Nickel Hydride Batteries pack fire safety interfaces should be issued as soon as possible.

Luo Junjie revealed that the Ministry of Industry and Information Technology will work with relevant departments to take a multi-pronged approach to ensure the safety of industrial development, such as carrying out special inspections on new energy vehicle safety, giving full play to the role of new energy vehicle monitoring platforms, and improving safety early warning mechanisms to ensure that safety hazards are eliminated in a timely manner. At the same time, we should improve the safety standard system for new energy vehicles, accelerate the release and implementation of mandatory national safety standards for new energy vehicles, and cooperate with relevant departments to establish and improve new energy vehicle insurance, fire rescue, annual inspection, product recall and other systems to improve the safe operation level of new energy vehicles.

"Nickel Hydride Batteries safety technology is the first focus of revolutionary breakthroughs in Nickel Hydride Batteries technology and the life of sustainable development of electric vehicles." Ouyang Minggao emphasized that the national scientific and technological research and development of power batteries should focus on safety, make every effort to improve the safety technology of existing lithium-ion Nickel Hydride Batteries systems, and make every effort to break through new solid-state Nickel Hydride Batteries technology.

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