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Effects of macromolecular configuration of thermally sensitive binder in lithium‐ion battery
Author(s) -
Le Anh V.,
Wang Meng,
Noelle Daniel J.,
Shi Yang,
Yoon Hyojung,
Zhang Minghao,
Meng Y. Shirley,
Qiao Yu
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.45078
Subject(s) - hexafluoropropylene , thermal runaway , materials science , battery (electricity) , fluoride , lithium (medication) , lithium ion battery , ion , composite material , energy storage , chemical engineering , polymer , chemistry , copolymer , inorganic chemistry , organic chemistry , thermodynamics , power (physics) , physics , tetrafluoroethylene , engineering , endocrinology , medicine
In order to suppress heat generation of nail‐penetrated lithium‐ion battery (LIB) cell, thermally sensitive binders (TSB) based on poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride‐ co ‐hexafluoropropylene) (PVDF‐HFP) were investigated. The testing data showed that with appropriate treatment, TSB could efficiently reduce the peak temperature associated with internal shorting, and did not influence the cycling performance of LIB. The molecular weight of TSB was not a vital factor, while crosslinking was critical. This technology can be used to mitigate thermal runaway of LIB, enabling safe and robust large‐scale energy storage. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45078.