Controlled Energy Offloading via Self-Destructing Agents for Safer Li-Ion Batteries

Addressing the critical safety challenge of thermal runaway in lithium-ion batteries, we introduce a self-destruction strategy incorporating spatiotemporal electron capture agents. In LiNi0.8Co0.1Mn0.1O2 batteries, 7 of 14 tested agents, notably phloroglucinol, effectively modulated thermal runaway pathways, reducing heat release by up to 65% and reducing the peak temperature of 176.1 °C. Phloroglucinol demonstrated particularly positive performance (70% enthalpy reduction and 72% peak temperature-rise rate reduction). Conversely, lithium iron phosphate batteries required alternative approaches as thermal output increased. By correlating agent properties like water-binding energy and phenyl reactivity with performance, we provide actionable guidelines for designing safer battery chemistries, bridging fundamental research with practical applications to mitigate the safety-energy density dilemma.

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Publication Details

Journal
ACS Energy Letters
Published
2025-09-25
DOI
https://doi.org/10.1021/acsenergylett.5c01924
Citations
1
Primary Topic
Advanced Battery Technologies Research
Type
article
Field-Weighted Citation Impact
0.68
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Controlled Energy Offloading via Self-Destructing Agents for Safer Li-Ion Batteries

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Controlled Energy Offloading via Self-Destructing Agents for Safer Li-Ion Batteries

Xinyu Rui, Yong Peng, Pei Zhang, Bowen Hou, Zhenwei Wei, Zheng Meng, Junxian Hou, Yanshuang Hao, Li Wang, Xiangming He, Liqi Zhao, Minggao Ouyang, Xuning Feng
article en
1 citations

Abstract

Addressing the critical safety challenge of thermal runaway in lithium-ion batteries, we introduce a self-destruction strategy incorporating spatiotemporal electron capture agents. In LiNi0.8Co0.1Mn0.1O2 batteries, 7 of 14 tested agents, notably phloroglucinol, effectively modulated thermal runaway pathways, reducing heat release by up to 65% and reducing the peak temperature of 176.1 °C. Phloroglucinol demonstrated particularly positive performance (70% enthalpy reduction and 72% peak temperature-rise rate reduction). Conversely, lithium iron phosphate batteries required alternative approaches as thermal output increased. By correlating agent properties like water-binding energy and phenyl reactivity with performance, we provide actionable guidelines for designing safer battery chemistries, bridging fundamental research with practical applications to mitigate the safety-energy density dilemma.

ACS Energy LettersVol. 10(10)
Nexen (Canada) (CA), China General Nuclear Power Corporation (China) (CN), State Key Laboratory of Vehicle NVH and Safety Technology (CN), Beihang University (CN), University of Science and Technology Beijing (CN), Tsinghua University (CN)
Openalex Percentile: Top 25%
Advanced Battery Technologies Research
0.68
DOISourceOpenAlex
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