Keywords
Power battery
Safety failure
Potential cause
Analysis and research
Submitted : 2023-06-21
Accepted : 2023-07-06
Published : 2023-07-21
Abstract
The aim of this paper is to analyze the potential reasons for the safety failure of batteries for new-energy vehicles. Firstly, the importance and popularization of new energy batteries are introduced, and the importance of safety failure issues is drawn out. Then, the composition and working principle of the battery is explained in detail, which provides the basis for the subsequent analysis. Then, the potential impacts of factors such as overcharge and over-discharge, high and low temperature environments, internal faults, and external shocks and vibrations on the safety of the batteries are analyzed. Finally, some common safety measures and solutions are proposed to improve the safety of new energy batteries, in hopes of improving the safety of batteries for new-energy vehicle.
References
Hu H, 2021, Difficulties and Countermeasures in the Capital Management of New Energy Vehicle Power Battery Companies. Finance and Economics, 2021(31): 101–103.
Xin M, Wang J, Lu H, 2021, Analysis on the Development Status of New Energy Vehicle Power Battery Thermal Management Technology Based on Patent Analysis. Automobile Digest, 2021(11): 25–28.
Ye C, Wang X, 2018, Overview of My Country’s Pure Electric Vehicle Industry Development Bottleneck and Development Suggestions. Times Automobile, 2018(10): 66–68.
Li K, Lu W, Liang C, 2020, Review and Prospect of China’s New Energy Vehicle Power Batteries from the Perspective of Management. Science and Technology Management Research, 40(05): 173–177.
Zhang S, Li T, 2019, Prediction and Countermeasures for the Amount of Scrapped Power Batteries of New Energy Vehicles in China - Calculation Based on Monte Carlo Simulation. Environment and Sustainable Development, 44(06): 101–105.
Yang H, 2021, The Application Dilemma and Improvement Path of the Extended Producer Responsibility System for the Recycling of New Energy Vehicle Power Batteries in My Country. Resource Regeneration, 2021(12): 39–42.
Ministry of Industry and Information Technology, 2019, Notice on Carrying Out the Investigation of Potential Safety Risks of New Energy Vehicles, viewed May 10, 2023, http://www.miit-eidc.org.cn/art/2019/6/17/art_97_4052.html
Ministry of Industry and Information Equipment Industry Development Center, Zhejiang Geely Holding Group Co., Ltd., 2021, Annual Report of China Automotive Industry and Technology Development – 2021, Publishing House of Electronics Industry, Beijing.
Feng X, 2019, Research Report on Power Battery Safety in 2019, Sohu, viewed May 10, 2023, https://www.sohu.com/a/335679260_560178
Wu C, 2023, Analysis and Solution of New Energy Vehicle Power Battery Safety Problems. Times Automobile, 2023(10): 100–102.
Wang HB, Li Y, Wang QZ, et al., 2021, Mechanisms Causing Thermal Runaway-Related Electric Vehicle Accidents and Accident Investigation Strategies. Energy Storage Science and Technology, 10(2): 544–557.
New Energy Vehicle Industry Technology Innovation Strategic Alliance, 2019, Annual Tracking Report on New Energy Vehicle Power Battery Technology, viewed May 10, 2023, https://xueqiu.com/1235427606/147429802
Cao Y, Yan CQ, Wang YF, et al., 2018, The Technical Route Exploration of Lithium Ion Battery with High Safety and High Energy Density. Energy Storage Science and Technology, 7(3): 384–393.
Chen XX, Li S, Hu YG, et al., 2019, Failure Mechanism of Li1+x(NCM)1?xO2 Layered Oxide Cathode Material During Capacity Degradation. Energy Storage Science and Technology, 8(6): 1003–1016.
Wang F, Wang Z, Lin C, et al., 2022, Analysis of Potential Causes of Safety Failure of New Energy Vehicle Power Batteries. Energy Storage Science and Technology, 11(5): 1411–1418.