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

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:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Tulane Univ., New Orleans, LA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Joule
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2542-4351
Publisher:
Elsevier - Cell Press
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
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
OSTI Identifier:
1465068

Naguib, Michael Abdelmalak, 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., Web. doi:10.1016/j.joule.2017.11.003.
Naguib, Michael Abdelmalak, 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 Abdelmalak, Allu, Srikanth, Simunovic, Srdjan, Li, Jianlin, Wang, Hsin, and Dudney, Nancy J. 2017. "Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries". United States. doi:10.1016/j.joule.2017.11.003. https://www.osti.gov/servlets/purl/1465068.
@article{osti_1465068,
title = {Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries},
author = {Naguib, Michael Abdelmalak 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 = {2017},
month = {12}
}