气凝胶毡抑制磷酸铁锂电池模组热失控蔓延特性研究
Inhibiting effect of aerogel mat on thermal runaway propagation of lithium iron phosphate battery modules
陈宝辉 1邓捷 1吴传平 1周天念1
作者信息
- 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
- 折叠
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.
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 phos-phate battery module.The results showed that aerogel mat could effectively inhibit the thermal runaway spread of lithium iron phos-phate 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 run-away of lithium-ion batteries.
关键词
锂离子电池/磷酸铁锂电池/气凝胶毡/热蔓延/热失控Key words
lithium-ion batteries/lithium iron phosphate barre-ries/aerogel blanket/heat spread/thermal runaway引用本文复制引用
基金项目
国家电网科技项目(5200-202123358A-0-0-00)
湖南省重点研发计划(2021SK2049)
出版年
2024
NETL
NSTL
维普
万方数据