New Insights into Improving Rate Performance of Lithium-Rich Cathode Material

Yongqing Wang, Zhenzhong Yang, Yumin Qian, Lin Gu*, Haoshen Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

189 Citations (Scopus)

Abstract

A Sn doping strategy is demonstrated to improve lithium diffusion kinetics by expanding the spacing of (003) planes without destroying the layered structure. A large (003) spacing will significantly decrease the energy barrier associated with lithium diffusion. Besides better rate capability, the Sn-doped material exhibits an unexpected much improved capacity above 3.0 V (vs Li+/Li), which is highly desired in future applications.

Original languageEnglish
Pages (from-to)3915-3920
Number of pages6
JournalAdvanced Materials
Volume27
Issue number26
DOIs
Publication statusPublished - 1 Jul 2015
Externally publishedYes

Keywords

  • cathodes
  • doping
  • layered structures
  • lithium-ion batteries

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