Electrochemical performance of nanocomposite LiMnPO4/C cathode materials for lithium batteries

Zhumabay Bakenov, Izumi Taniguchi

Research output: Contribution to journalArticlepeer-review

131 Citations (Scopus)

Abstract

A LiMnPO4/C composite cathode was prepared by a combination of spray pyrolysis and wet ball milling. The cathode showed stable performance at various cutoff voltages up to 4.9 V. The cutoff voltage increase up to 4.9 V allowed the achievement of a high discharge capacity in galvanostatic charge-discharge tests. The discharge capacities of 153 mAh g-1 at 0.05 C and 149 mAh g-1 at 0.1 C were achieved at room temperature; the trickle-mode discharge capacities at room temperature were 132, 120 and 91 mAh g-1 at 0.1, 1 and 5 C discharge rates, respectively. The cell exhibited a good rate capability in the galvanostatic cycling up to 5 C discharge rates at both ambient temperature and 50 °C.

Original languageEnglish
Pages (from-to)75-78
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 1 2010

Keywords

  • High-voltage cycling
  • LiMnPO/C composite cathode
  • Spray pyrolysis
  • Wet ball milling

ASJC Scopus subject areas

  • Electrochemistry

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