CaltechAUTHORS
Published November 28, 2006 | Version public
Journal Article Metadata-only

Probing the Self-Discharge Current in LiMn_2O_4, LiCoO_2 and Li(NiMnCo)_(1/3)O_2 Cathodes

Creators

  • 1. ROR icon California Institute of Technology

Contributors

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Abstract

We combined open-circuit voltage (OCV) measurements at equilibrium at the ambient temperatures and during thermal aging of Li/LiMO half-cells (M=transition metal) in 60-75ºC temperatures range and electrochemical entropymetry to indirectly determine the self-discharge current in the cells at the corresponding aging temperature. Comparison of normalized currents show highest self-discharge rates in LiMn_2O_4 and lowest in Li(NiMnCo_(1/3)O_2, LiCoO_2 being intermediary. The results are discussed in terms of lithium re- intercalation induced phase transitions associated with electrolyte oxidation together with the phases intrinsic stability and their reactivity with the electrolyte.

Additional Information

© 2016 ECS -- The Electrochemical Society. The authors thank ENAX, Co., Japan for kindly providing the cathodes used in this study.

Additional details

Additional titles

Alternative title
Probing the Self-Discharge Current in LiMn2O4, LiCoO2 and Li(NiMnCo)1/3O2 Cathodes

Identifiers

Eprint ID
89623
DOI
10.1149/1.2209365
Resolver ID
CaltechAUTHORS:20180913-133203768

Related works

Describes
10.1149/1.2209365 (DOI)

Dates

Created
2018-09-14
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Updated
2021-11-16
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