Electrolyte solution for the improved cycling performance of LiCoPO 4/C composite cathodes

R. Sharabi, E. Markevich, K. Fridman, G. Gershinsky, G. Salitra, D. Aurbach, G. Semrau, M. A. Schmidt, N. Schall, C. Bruenig

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

The markedly enhanced cycling performance of a LiCoPO4/C cathode was observed in a 1 M LiPF6 in fluoroethylene carbonate (FEC)/dimethyl carbonate (DMC) electrolyte solution compared to 1 M LiPF 6 in ethylene carbonate (EC)/DMC electrolyte solution. Further improvement was achieved by the addition of 0.5-1% of trimethylboroxine (TMB) additive to the electrolyte solution. The capacity retention of the LiCoPO 4 electrode in this electrolyte is 90% with a faradaic efficiency of 98% after 100 cycles.

Original languageEnglish
Pages (from-to)20-23
Number of pages4
JournalElectrochemistry Communications
Volume28
DOIs
StatePublished - Mar 2013

Keywords

  • Cycling performance
  • High voltage
  • Lithium batteries
  • Lithium-cobalt phosphate
  • Olivines

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