磷酸铁锂电池滥用试验及痕迹研究

消防科学与技术 ›› 2023, Vol. 42 ›› Issue (2): 283-287.

磷酸铁锂电池滥用试验及痕迹研究

周霄辉1，宋志龙2，孙均利1，王淮斌1

(1. 中国人民警察大学物证鉴定中心，河北廊坊 065000；2. 中国科学技术大学火灾科学国家重点实验室，安徽合肥 230027）

出版日期:2023-02-15 发布日期:2023-02-17
作者简介:作者简介：周霄辉（1997- ），女，满族，河北承德人，中国人民警察大学研究生院硕士研究生，主要从事锂离子电池火灾痕迹方面的研究，河北省廊坊市，065000。
基金资助:
国家自然科学基金青年科学基金项目（52106284）；河北省自然科学基金项目（B2021507001）；中国人民警察大学国家基金培育课题（ZRJJPY202101）

Lithium-ion phosphate battery abuse experiments and patterns research

Zhou Xiaohui1, Song Zhilong2, Sun Junli1, Wang Huaibin1

(1. Institute of Forensic Science, China People's Police University, Hebei Langfang 065000, China; 2. State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui Hefei 230027, China)

Online:2023-02-15 Published:2023-02-17

摘要/Abstract

摘要： 以电动汽车用磷酸铁锂电池作为研究对象，针对机械滥用、电滥用、热滥用几种常见滥用方式，对电池进行试验，探究电动汽车锂离子电池作为火场引火源和火场可燃物时，其电压和温度的变化，并总结其残留物痕迹特点。研究表明，电池荷电量越高，受损程度越重，铝塑包装的完整性越差，颜色变化越丰富，褶皱越明显。磷酸铁锂电池发生热失控，持续时间久，释放能量多。

Abstract: Take the lithium-ion phosphate battery for electric vehicles as the research object, to explore the changes of voltage and temperature of lithium-ion battery of electric vehicle when it is used as ignition source and summarize its characteristics of residue patterns, the main abuse ways of mechanical damage, electrical damage and thermal damage were used in the experiment. The results show that the higher the SOC value is, the greater the damage is, the worse the integrity of the aluminum-plastic packaging, the richer the color variation, and the more obvious the folds. When the lithium-ion phosphate battery has thermal runaway, it will release much energy for a long time.

Key words: lithium-ion battery, thermal runaway, pattern characteristics, fire investigation

周霄辉, 宋志龙, 孙均利, 王淮斌. 磷酸铁锂电池滥用试验及痕迹研究[J]. 消防科学与技术, 2023, 42(2): 283-287.

Zhou Xiaohui, Song Zhilong, Sun Junli, Wang Huaibin. Lithium-ion phosphate battery abuse experiments and patterns research[J]. Fire Science and Technology, 2023, 42(2): 283-287.