Spinel-Li3.5+xTi5O12 coated LiMn 2O4 with high surface Mn valence for an enhanced cycling performance at high temperature

J. Yao, C. Shen, P. Zhang, C. A. Ma, D. H. Gregory, L. Wang

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Li3.5+xTi5O12 and Li4Ti 5O12 layers coated LiMn2O4 were prepared via sol-gel route, with subsequent annealing at 750 C. XRD studies showed coating did not change the structure of LiMn2O4. TEM studies showed coating layers were formed around LiMn2O 4 particles, both corresponding spinel LiTiO phase. XPS studies showed the valence of surface Mn for the Li3.5Ti5O 12-coated-LiMn2O4 increased after annealing. This sample also demonstrated a favorable cycling performance.

Original languageEnglish
Pages (from-to)92-95
Number of pages4
JournalElectrochemistry Communications
Volume31
DOIs
Publication statusPublished - Jun 1 2013

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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