主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (1): 5-11.

• • 上一篇    下一篇

气凝胶毡抑制磷酸铁锂电池模组热失控蔓延特性研究

陈宝辉, 邓捷, 吴传平, 周天念   

  1. （国网湖南省电力公司防灾减灾中心，电网防灾减灾全国重点实验室，湖南 长沙 410007）
  • 出版日期:2024-01-15 发布日期:2024-01-15
  • 作者简介:陈宝辉（1987- ），男，湖南邵东人，电网防灾减灾全国重点实验室高级工程师，博士(后)，主要研究方向为储能安全技术和安全储能电池，湖南省长沙市榔梨镇龙华路，410007。
  • 基金资助:
    基金项目：国家电网公司科技项目（5200-202123358A-0-0-00）；湖南省重点研发计划（2021SK2049）

Inhibiting effect of aerogel mat on thermal runaway propagation of lithium iron phosphate battery modules

Chen Baohui, Deng Jie, Wu Chuanping, Zhou Tiannian   

  1. (Hunan Electric Power Corporation Disaster Prevention and Reduction Center, State Key Laboratory of Disaster Prevention & Reduction for Power Grid Transmission and Distribution Equipment, Hunan Changsha 410007, China)
  • Online:2024-01-15 Published:2024-01-15

摘要： 热失控安全问题是制约锂离子电池储能技术发展的瓶颈。热阻隔是抑制电池热失控蔓延的技术途径之一。本文采用55 Ah磷酸铁锂储能电池模组，对比研究不安放气凝胶毡，以及安放不同厚度气凝胶毡对磷酸铁锂电池模组热失控蔓延特性的影响。研究表明，气凝胶毡可有效抑制磷酸铁锂电池热失控蔓延；气凝胶毡越厚，阻隔热蔓延的效果越好，0.5、1.2、3.0 mm厚的气凝胶毡可分别提升电池模组热阻隔效率75.80%、88.81%和299.92%。研究结论可为储能锂离子电池热失控防治提供参考。

关键词: 锂离子电池, 磷酸铁锂电池, 气凝胶毡, 热蔓延, 热失控

Abstract: Thermal runaway safety is a bottleneck restricting the development of lithium-ion battery energy storage technology. The thermal barrier is one of the technical ways to restrain the thermal runaway spread of batteries. In this paper, the 55 Ah lithium iron phosphate energy storage battery module was used to study the influence of different thicknesses of aerogel mat on the thermal runaway spreading characteristics of the lithium iron phosphate battery module. The results showed that aerogel mat could effectively inhibit the thermal runaway spread of lithium iron phosphate battery. The thicker the aerogel blanket was, the better the thermal barrier effect was. The 0.5, 1.2, 3.0 mm aerogel blankets could improve the thermal barrier efficiency of the battery module by 75.80%, 88.81%, and 299.92%, respectively. The results provided a reference for the prevention and control of thermal runaway of lithium-ion batteries.

Key words: lithium-ion batteries, lithium iron phosphate barreries, aerogel blanket, heat spread, thermal runaway