Thermal Runaway of Lithium-Ion Batteries without Internal Short Circuit
By Xiang Liu, Dongsheng Ren, Hungjen Hsu, Xuning Feng, Gui‐Liang Xu, Minghao Zhuang, Han Gao, Languang Lu, Xuebing Han, Zhengyu Chu and 4 more. Joule, 2018
702 citations recorded by the source corpus.
Summary We demonstrate herein that not only internal short circuiting, but also chemical crossover, is the mechanism behind thermal runaway that can occur in lithium-ion batteries due to abuse conditions. In situ experiments showed that during thermal runaway, the cathode releases oxygen by a phase transition, and this oxygen is consumed by the lithiated anode. The released highly oxidative gas reacts with reductive LiCx with tremendous heat generation centered at 274.2°C with heat flow of 87.8 W g−1. To confirm the proposed mechanism, we froze a battery undergoing the thermal runaway process by liquid nitrogen and subjected it to detailed post-test analysis. Our results revealed the hidden thermal runaway mechanism of chemical crossover between the battery components without a severe internal short circuit. These findings provide an important insight into the rational design of automotive lithium-ion batteries as well as solid-state batteries.
Subfields: Automotive Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/1621aedeb7b7f0bb155c5c1ed3e259fc66dd6f91
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Citations in the corpus
- Unlocking the self-supported thermal runaway of high-energy lithium-ion batteries (2021, positive): “The chemical crosstalk between cathode-generated oxidative matters (e.g., oxygen, Mn 4+ , Co 4+ ) and the lithiated anode produces the high heat in LiNi 0.5 Mn 0.3 Co 0.2 O 2 |graphite (NMC532|Gr) batteries 28 .”