Characterization of LiNi0.85Co0.10M0.05O2 (M = Al, Fe) as a cathode material for lithium secondary batteries

Kyung K. Lee, Won S. Yoon, Kwang B. Kim, Ki Y. Lee, Seung T. Hong

Research output: Contribution to journalConference article

70 Citations (Scopus)

Abstract

The structural and electrochemical characteristics and the thermal behavior of four-cation oxides, LiNi0.85Co0.10M0.05O2 (M = Al, Fe) were examined by X-ray and neutron diffraction measurements, charge/discharge cycling and thermal analysis. LiNi0.85Co0.10Al0.05O2 showed enhanced electrochemical properties, i.e. a small polarization and a large reversible capacity during the charge/discharge cycling compared with LiNiO2 and it is due to the structural stabilization of the nickelate in the wide range of x by Co and Al substitution. The substitution of Co, Al and Fe also had a beneficial effect on the thermal stability of LiNiO2.

Original languageEnglish
Pages (from-to)308-312
Number of pages5
JournalJournal of Power Sources
Volume97-98
DOIs
Publication statusPublished - 2001 Jul 1
Event10th International Meeting on Lithium Batteries - Como, Italy
Duration: 2001 May 282001 Jun 2

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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