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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Correlation between local strain and cycle-life performance of AlPO4-coated LiCoO2 cathodes

Cited 35 times inthomson ciCited 32 times inthomson ci
Title
Correlation between local strain and cycle-life performance of AlPO4-coated LiCoO2 cathodes
Author
Kim, ByoungsooLee, Joon-GonChoi, MyungsukCho, JaephilPark, Byungwoo
Keywords
AlPO4-nanoparticle coating; Battery; Cycle-life; LiCoO2; Local strain
Issue Date
2004-02
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF POWER SOURCES, v.126, no.1-2, pp.190 - 192
Abstract
AlPO4-coated LiCoO2 cathodes display improved cycle-life performance compared with bare LiCoO2. This is attributed to suppression of cobalt dissolution from the cathodes by the AlPO 4-nanoparticle coating. Dissolution of cobalt during cycling with a charge cut-off voltage of 4.6 V leads to structural degradation, and induces a non-uniform distribution of local strain in the cathodes. The strain in coated samples is significantly reduced after 50 cycles, and is correlated with the enhanced cycle-life performance.
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DOI
10.1016/j.jpowsour.2003.08.038
ISSN
0378-7753
Appears in Collections:
ECHE_Journal Papers
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