Cycle aging of commercial NMC/graphite pouch cells at different temperatures

Cycle aging of commercial NMC/graphite pouch cells at different temperatures •Cycle aging of commercial 40Ah pouch cells was studied at different temperatures.•Cycle testing, impedance spectroscopy, and post-mortem analyses were carried out.•Post-mortem study enabled attributing the observed aging to different mechanisms.•Capacity fade was related to SEI-layer and at high temperature also to Li plating.•Significant increase in the electrolyte and separator resistances was observed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Energy Elsevier

Cycle aging of commercial NMC/graphite pouch cells at different temperatures

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0306-2619
D.O.I.
10.1016/j.apenergy.2015.04.110
Publisher site
See Article on Publisher Site

Abstract

•Cycle aging of commercial 40Ah pouch cells was studied at different temperatures.•Cycle testing, impedance spectroscopy, and post-mortem analyses were carried out.•Post-mortem study enabled attributing the observed aging to different mechanisms.•Capacity fade was related to SEI-layer and at high temperature also to Li plating.•Significant increase in the electrolyte and separator resistances was observed.

Journal

Applied EnergyElsevier

Published: Sep 15, 2015

References

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