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Correlation between local strain and cycle-life performance of AlPO4-coated LiCoO2 cathodes by Byoungsoo Kim; Joon-Gon Lee; Myungsuk Choi; Jaephil Cho; Byungwoo Park is a Engineering article available to read on EtoBox.

What is Correlation between local strain and cycle-life performance of AlPO4-coated LiCoO2 cathodes about?

AlPO 4 -coated LiCoO 2 cathodes display improved cycle-life performance compared with bare LiCoO 2 . 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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Author

Byoungsoo Kim; Joon-Gon Lee; Myungsuk Choi; Jaephil Cho; Byungwoo Park

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)

Published

2004

Language

EN

Field

Engineering (Physical Sciences)