Preparation of binder-free, thin film LiCoO{sub 2} and its electrochemical responses in a propylene carbonate solution

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2048725· OSTI ID:122697

Uchida, Isamu; Sato, Hajime ^[1]

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1. Tohoku Univ., Sendai (Japan). Dept. of Molecular Chemistry and Engineering

The development of high energy rechargeable lithium batteries has attracted worldwide attention. A number of transition metal oxides with layered structures have been studied extensively. Among them, LiCoO{sub 2} has become a center of attention because of its unique charge/discharge characteristics in propylene carbonate media. Binder-free, thin film (ca, 0.3 {micro}m) LiCoO{sub 2} electrodes have been prepared by the oxidation of metallic Co deposited on an Au substrate in molten (Li + K) CO{sub 3} at 650 C under a (9:1) O{sub 2}/CO{sub 2} atmosphere. Electrochemical measurements were carried out in 1 M LiClO{sub 4}/propylene carbonate electrolytes using cyclic voltammetry. It was demonstrated that cyclic voltammograms measured at 0.1 mV/s scan rate show a well-defined, reversible three-peaked wave due to extraction of Li{sup +} ions from the solid phase.

• Sponsoring Organization: USDOE
• OSTI ID: 122697
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 9 Vol. 142; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
40 CHEMISTRY
CHEMICAL PREPARATION
COBALT
COBALT OXIDES
ELECTRIC BATTERIES
ELECTROCHEMISTRY
ELECTRODES
GOLD
LITHIUM CARBONATES
LITHIUM OXIDES
OXIDATION
POTASSIUM CARBONATES
SUBSTRATES
VOLTAMETRY
X-RAY DIFFRACTION