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 ›› 2020, Vol. 39 ›› Issue (5): 649-652.

• • 上一篇    下一篇

七氟丙烷对磷酸铁锂储能电池的灭火效果

张明杰，杨凯，张坚，刘皓，高飞，耿萌萌   

  1. 中国电力科学研究院有限公司 新能源与储能运行控制国家重点实验室，北京 100192
  • 出版日期:2020-05-15 发布日期:2020-05-15
  • 作者简介:张明杰(1990-)，男，中国电力科学研究院有限公司技术工程师，硕士，主要从事锂离子储能电池安全性技术研究，北京市海淀区清河小营东路15号，100192。
  • 基金资助:
    国家电网公司总部科技项目“锂离子储能电池灭火技术探索研究”（DG71-18-002）

Fire extinguishing effect of heptafluoropropane on lithium iron phosphate energy storage battery

ZHANG Ming-jie, YANG Kai, ZHANG Jian, LIU Hao, GAO Fei, GENG Meng-meng   

  1. State Key Laboratory of Operation and Control of Renewable Energy ＆ Storage Systems, China Electric Power Research Institute. Beijing 100192, China
  • Online:2020-05-15 Published:2020-05-15

摘要： 以磷酸铁锂储能电池为实验对象，研究了自由膨胀、夹板限定膨胀的空间条件下，七氟丙烷灭磷酸铁锂储能电池火灾过程中温度、电压的变化，分析灭火效果。结果表明，对于自由膨胀的电池火灾，七氟丙烷可以有效终止其热失控反应；对于膨胀受限的电池，电池本身热失控过程更剧烈，灭火后持续升温时间更长，电池出现第二次热失控甚至出现复燃现象。在实际应用中，应当综合考虑安全性以及成本问题，给电池设置适当的膨胀空间，七氟丙烷灭火剂也应尽早释放。

关键词: 七氟丙烷, 磷酸铁锂储能电池, 膨胀空间, 燃烧阶段, 灭火效果

Abstract: Take Lithium iron phosphate energy storage battery as the experimental object, the fire extinguishing effect of heptafluoropropane on lithium iron phosphate battery was studied under the space condition of free expansion and limited expansion by splint. The change of temperature and voltage in the fire-extinguishing process of heptafluoropropane on lithium iron phosphate energy storage battery fire were studied and the fire-extinguishing effect of it was analyzed. The results showed that for free-expanding battery fires, heptafluoropropane can stop its thermal runaway reactioneffectively. For the battery with limited expansion, the thermal runaway process of the battery itself is more intense, and the temperature keeps rising for a longer time after extinguishing the fire. The second thermal runaway or even reburns of the battery happens. In practical application, safety and cost should be taken into consideration comprehensively to set up appropriate expansion space for the battery, and the fire-extinguishing agent of heptafluoropropane should be released as soon as possible.

Key words:  heptafluoropropane, lithium iron phosphate energy storage battery, expansion space, combustion stage, fire extinguishing effect