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Effects of macromolecular configuration of thermally sensitive binder in lithium‐ion battery

Journal Article · · Journal of Applied Polymer Science
DOI:https://doi.org/10.1002/app.45078· OSTI ID:1401312
 [1];  [1];  [2];  [2];  [3];  [3];  [3];  [4]
  1. Department of Structural Engineering University of California—San Diego La Jolla California 92093‐0085
  2. Program of Materials Science and Engineering University of California—San Diego La Jolla California 92093
  3. Department of Nanoengineering University of California—San Diego La Jolla California 92093
  4. Department of Structural Engineering University of California—San Diego La Jolla California 92093‐0085, Program of Materials Science and Engineering University of California—San Diego La Jolla California 92093
ABSTRACT

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.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AR0000396
OSTI ID:
1401312
Journal Information:
Journal of Applied Polymer Science, Journal Name: Journal of Applied Polymer Science Journal Issue: 31 Vol. 134; ISSN 0021-8995
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English

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