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

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

Research output: Contribution to journalConference article

68 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

Fingerprint

storage batteries
Secondary batteries
lithium batteries
Lithium
Cathodes
Substitution reactions
cathodes
substitutes
cycles
Neutron diffraction
Electrochemical properties
Oxides
Thermoanalysis
neutron diffraction
Cations
thermal analysis
Thermodynamic stability
thermal stability
Stabilization
stabilization

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

Cite this

Lee, Kyung K. ; Yoon, Won S. ; Kim, Kwang Bum ; Lee, Ki Y. ; Hong, Seung T. / Characterization of LiNi0.85Co0.10M0.05O2 (M = Al, Fe) as a cathode material for lithium secondary batteries. In: Journal of Power Sources. 2001 ; Vol. 97-98. pp. 308-312.
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Characterization of LiNi0.85Co0.10M0.05O2 (M = Al, Fe) as a cathode material for lithium secondary batteries. / Lee, Kyung K.; Yoon, Won S.; Kim, Kwang Bum; Lee, Ki Y.; Hong, Seung T.

In: Journal of Power Sources, Vol. 97-98, 01.07.2001, p. 308-312.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Characterization of LiNi0.85Co0.10M0.05O2 (M = Al, Fe) as a cathode material for lithium secondary batteries

AU - Lee, Kyung K.

AU - Yoon, Won S.

AU - Kim, Kwang Bum

AU - Lee, Ki Y.

AU - Hong, Seung T.

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AB - 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.

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