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Comparative experimental study on combustion characteristics of typical combustible components for lithium‐ion battery
Author(s) -
Chen Mingyi,
Mei Jie,
Liu Hong
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4897
Subject(s) - exothermic reaction , combustion , separator (oil production) , endothermic process , chemistry , lithium ion battery , boiling point , chemical engineering , thermodynamics , battery (electricity) , organic chemistry , adsorption , power (physics) , physics , engineering
Summary In this paper, the cone calorimeter is used to investigate the combustion characteristics of typical combustible components for lithium‐ion battery (LIB). The incomplete combustion of solvents, lithium salt, and separator results in the generation of residue. The melting of the separator at the early stage shows a more obvious endothermic reaction than the decomposition of LiPF 6 resulting in smaller peak heat release rate (HRR). The exothermic reaction of separator combustion increases the internal temperature and produces more heat; however, the sustained endothermic reaction of LiPF 6 decomposition leads to the opposite result. Due to the different boiling points, the single solvent has different quasi‐steady‐state combustion and boiling combustion time nodes. Different sizes of burn pans have little effects on HRR, but it has a significant impact on the mass loss rate (MLR) data. The average MLR ratio of the three solvents is close to that of the burn pan area. These tests could be the reference of more detailed analysis of the combustion mechanism of LIB and practical applications.