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Study on Thermal Simulation of LiNi 0.5 Mn 1.5 O 4 /Li 4 Ti 5 O 12 Battery
Author(s) -
Yang Kai,
Shan Zhongqiang,
Liu Xuesheng,
Tan Lizhi,
Wang Shirong
Publication year - 2021
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000816
Subject(s) - thermal runaway , battery (electricity) , anode , cathode , electrolyte , materials science , thermal decomposition , adiabatic process , thermal , nuclear engineering , lithium ion battery , thermodynamics , calorimeter (particle physics) , work (physics) , chemistry , electrical engineering , electrode , physics , engineering , power (physics) , organic chemistry , detector
A thermal simulation model is developed to analyze the thermal behavior of the lithium‐ion battery. This model precisely considers the thermal properties of battery materials, including cathode, anode, and electrolyte. The LiNi 0.5 Mn 1.5 O 4 (LNMO)/Li 4 Ti 5 O 12 (LTO) battery is modeled for the first time, and the accuracy is verified by an experimental battery test. The results demonstrate that the thermal runaway of the battery is mainly caused by the decomposition of LNMO. Little heat absorbed by the gasification of electrolyte solvent and highly thermal stable LTO account for a relatively small proportion of the factors leading to the battery temperature rise. The similar results of simulation and accelerating rate calorimeter (ARC) testing under the adiabatic condition indicate that the thermal simulation model utilized in this work is a good guidance for safety design of the LNMO/LTO battery.