Open AccessStudy on Thermal Runaway Behavior of Lithium Ion Battery under Overcharge Using Numerical Detecting Method
Author(s) -
Ao Gao,
Wenhui Dong,
Fang Xu,
Xiangyang Xu,
Lei Fan
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2195/1/012017
Subject(s) - thermal runaway , overcharge , battery (electricity) , nuclear engineering , lithium ion battery , lithium (medication) , thermal , ion , materials science , power (physics) , electrical engineering , chemistry , engineering , thermodynamics , physics , medicine , organic chemistry , endocrinology
In order to provide support for the early warning model of thermal runaway of lithium-ion battery, the thermal runaway behavior of power lithium battery is studied by analyzing the charging current, voltage and other parameters of lithium-ion power battery under overcharge condition. In addition, the morphological changes of battery before and after thermal runaway are compared. It is found that under the conditions of this study, overcharging for 58 minutes will lead to thermal runaway of full load lithium-ion battery. In the early stage of thermal runaway, the leakage gas in the battery box will continue to increase, which is 1339 ppm in the First Level early warning, 3405 ppm in the Second Level early warning and 8292 ppm in the Third Level early warning.