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Title: Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries

Abstract

Here, we report on a unique safety mechanism introduced to the Li-ion battery design to mitigate the effects of a mechanical impact event by limiting the current moving through resulting internal shorts, thereby preventing thermal runaway. “Slitted” electrodes and current collectors would electrically isolate the impacted parts of the electrodes before puncturing the separator. Batteries with such “slitted” electrodes were shown to perform normally prior to the mechanical impact. A proof-of-concept experiment showed that the battery with modified electrodes survived significant mechanical deformation without any change in the open-circuit voltage of the battery. It is interesting to note that, after the impact event, the modified battery was still viable with a reversible capacity of about 93% of that before the indentation test, while the standard battery was no longer functional.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1633346
Alternate Identifier(s):
OSTI ID: 1465068
Grant/Contract Number:  
AR0000869-1707; AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Joule
Additional Journal Information:
Journal Name: Joule Journal Volume: 2 Journal Issue: 1; Journal ID: ISSN 2542-4351
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Li-ion battery; impact; short circuit; safety; safety foil; breakable electrode; current collector; slit

Citation Formats

Naguib, Michael, Allu, Srikanth, Simunovic, Srdjan, Li, Jianlin, Wang, Hsin, and Dudney, Nancy J. Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries. United States: N. p., 2018. Web. doi:10.1016/j.joule.2017.11.003.
Naguib, Michael, Allu, Srikanth, Simunovic, Srdjan, Li, Jianlin, Wang, Hsin, & Dudney, Nancy J. Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries. United States. doi:10.1016/j.joule.2017.11.003.
Naguib, Michael, Allu, Srikanth, Simunovic, Srdjan, Li, Jianlin, Wang, Hsin, and Dudney, Nancy J. Mon . "Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries". United States. doi:10.1016/j.joule.2017.11.003.
@article{osti_1633346,
title = {Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries},
author = {Naguib, Michael and Allu, Srikanth and Simunovic, Srdjan and Li, Jianlin and Wang, Hsin and Dudney, Nancy J.},
abstractNote = {Here, we report on a unique safety mechanism introduced to the Li-ion battery design to mitigate the effects of a mechanical impact event by limiting the current moving through resulting internal shorts, thereby preventing thermal runaway. “Slitted” electrodes and current collectors would electrically isolate the impacted parts of the electrodes before puncturing the separator. Batteries with such “slitted” electrodes were shown to perform normally prior to the mechanical impact. A proof-of-concept experiment showed that the battery with modified electrodes survived significant mechanical deformation without any change in the open-circuit voltage of the battery. It is interesting to note that, after the impact event, the modified battery was still viable with a reversible capacity of about 93% of that before the indentation test, while the standard battery was no longer functional.},
doi = {10.1016/j.joule.2017.11.003},
journal = {Joule},
number = 1,
volume = 2,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.joule.2017.11.003

Citation Metrics:
Cited by: 12 works
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