Electrochemical performance research of Mg ion doped LiMnPO4/C

Xue Wu Liu, Xin Li, Yuan Fu Deng, Zhi Cong Shi, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

LiMn1-xMgxPO4/C(x=0, 0.01, 0.04, 0.05, 0.1) were synthesized by using wet-ballmilling and solid-state calcining with phenolic resin as the carbon source. All samples are single phase with a similar morphology, but the cation substitution results in a crystal lattice shrink because of the smaller ionic radii of Mg2+, the particles are small and homogeneous. Charge/discharge and EIS measurement shows that the Mg substitution leads to a significantly increased reversible capacity due to the enhanced electrochemical kinetics. LiMn0.96-Mg0.04PO4/C calcined at 600°C has a discharge capacity of 144 mAh/g at 0.05 C. When charging-discharging by CC-CV-CC mode at high rates, LiMn0.96Mg0.04PO4/C composite exhibits a good cyclability and rate capability.
Original languageEnglish
Pages (from-to)1381-1384
Number of pages4
JournalGongneng Cailiao/Journal of Functional Materials
Volume44
Issue number10
DOIs
Publication statusPublished - 30 May 2013
Externally publishedYes

Keywords

  • LiMnPO 4
  • Mg ion doped
  • Phenolic resin
  • Solid-state reaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this