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Self-protecting aqueous lithium-ion batteries with smart ther-

Yuewang Yang, Zhaowen Bai

2016Englishbatteriesenergy storageelectrochemistrylithium-ion batteriesaqueous batteriesthermoresponsive hydrogel

Abstract

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Capacity degradation and destructive hazards are two core challenges for lithium-ion batteries at high temperatures, which need to be solved urgently. This study aims to develop smart self-protecting aqueous lithium-ion batteries using thermoresponsive separators through in-situ polymerization on the hydrophilic separator. The proposed separators close the lithium ion transport channel at high temperatures and reopen when the battery cools down; importantly, this transition is reversible. The methodology involved investigating the influence of lithium salts on the thermoresponsive properties of hydrogels, leading to the selection of suitable lithium salt (LiNO3) and concentration (1 M) in the electrolyte to achieve self-protection without compromising battery performance. Additionally, the shut-off temperature can be adjusted by altering the hydrophilic and hydrophobic moiety ratio in the hydrogel based on actual demands. The results indicate that this self-protecting lithium-ion battery shows promise for smart energy storage devices, particularly in enhancing safety and extending lifespan.

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Cite This Work

@article{f90347be-e838-4921-8e25-9cafdd088ffd,
  title={Self-protecting aqueous lithium-ion batteries with smart ther-},
  author={Yuewang Yang and Zhaowen Bai},
  year={2016},
  language={English}
}
TY  - JOUR
TI  - Self-protecting aqueous lithium-ion batteries with smart ther-
AU  - Yuewang Yang
AU  - Zhaowen Bai
PY  - 2016
LA  - English
ER  -

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