Journal
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
Volume 158, Issue -, Pages 4684-4689Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2019.01.736
Keywords
Lithium ion battery; safety; thermal runaway; thermal analysis; internal short circuit
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Funding
- National Natural Science Foundation of China [51706117, U1564205]
- China Postdoctoral Science Foundation [2017M610086]
- China Association for Science and Technology
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The lithium ion batteries are having increasing energy densities, meeting the requirement from industry, especially for the electric vehicles. However, a cell with a higher energy density is more prone to thermal runaway. We analyze the key characteristics during thermal runaway to help better define battery thermal runaway. Three characteristic temperatures are regarded as the common features of thermal runaway for all kinds of lithium ion batteries. The underlying mechanisms for the three characteristic temperatures have been investigated by thermal analysis. The conclusion of the analysis set benchmarks for evaluating the thermal runaway behaviors of commercial lithium-ion batteries, and the proposed methodologies benefits further research and development of battery safety design for electric vehicles. (C) 2019 The Authors. Published by Elsevier Ltd.
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