Improved high-voltage performance of FePO4-coated LiCoO 2 by microwave-assisted hydrothermal method

Kwang Chun Kim, Jong Pil Jegal, Seong Min Bak, Kwang Chul Roh, Kwang Bum Kim

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The generation of hot spots on the surface of LiCoO2 by microwave-induced selective heating is shown to facilitate a uniform hydrothermal coating of FePO4. This is achieved by heterogeneous nucleation of FePO4 in the bulk solution, with the resulting coating layer found to be highly conformal. Furthermore, morphology of the LiCoO 2 is preserved with no aggregation of the FePO4 nanoparticles. This FePO4-coated LiCoO2 exhibits markedly improved capacity retention of over 92% under a high charge voltage cutoff of 4.7 V, even after 50 cycles.

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalElectrochemistry Communications
Volume43
DOIs
Publication statusPublished - 2014 Jun

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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