Improvement of capacity fading resistance of LiMn2O4 by amphoteric oxides

Sung Bin Park, Ho Chul Shin, Wan Gyu Lee, Won Il Cho, Ho Jang

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

The capacity fading of LiMn2O4 is improved by adding amphoteric oxides such as Al2O3, ZnO, SnO2, and ZrO2 to the cathode slurry. The effectiveness of the amphoteric oxides on the fade resistance of LiMn2O4 is compared by measuring the capability of scavenging hydrofluoric acid (HF) in the electrolyte by the oxides using a pH meter and by BET surface analysis. Results suggest that the capacity fading is determined by the reactivity of oxides with HF and the effective surface-area of the oxide particles when they were mixed in the slurry. Zinc oxide is the most effective of the oxides in scavenging HF.

Original languageEnglish
Pages (from-to)597-601
Number of pages5
JournalJournal of Power Sources
Volume180
Issue number1
DOIs
Publication statusPublished - 2008 May 15

Fingerprint

fading
Oxides
Hydrofluoric Acid
Hydrofluoric acid
oxides
hydrofluoric acid
Scavenging
scavenging
pH meters
Zinc Oxide
Surface analysis
Zinc oxide
zinc oxides
Electrolytes
lithium manganese oxide
Cathodes
reactivity
cathodes
electrolytes

Keywords

  • Amphoteric oxide
  • Capacity fading hydrofluoric acid scavenging
  • Coating
  • LiMnO
  • Lithium-ion battery

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

Improvement of capacity fading resistance of LiMn2O4 by amphoteric oxides. / Park, Sung Bin; Shin, Ho Chul; Lee, Wan Gyu; Cho, Won Il; Jang, Ho.

In: Journal of Power Sources, Vol. 180, No. 1, 15.05.2008, p. 597-601.

Research output: Contribution to journalArticle

Park, Sung Bin ; Shin, Ho Chul ; Lee, Wan Gyu ; Cho, Won Il ; Jang, Ho. / Improvement of capacity fading resistance of LiMn2O4 by amphoteric oxides. In: Journal of Power Sources. 2008 ; Vol. 180, No. 1. pp. 597-601.
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