Performance of lithiummanganese oxide spinel electrodes in a lithium polymer electrolyte cell

The cycling performance of a lithiummanganese oxide spinel (prepared from MnO 2 and Li 2CO 3) has been investigated as a function of preparation temperature in a lithium polymer electrolyte cell. Excellent reversibility and high rate performance have been observed from a spinel phase prepared at 45...

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Bibliographic Details
Published in:Journal of power sources 1991-02, Vol.34 (1), p.39-49
Main Authors: Macklin, W.J., Neat, R.J., Powell, R.J.
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
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Summary:The cycling performance of a lithiummanganese oxide spinel (prepared from MnO 2 and Li 2CO 3) has been investigated as a function of preparation temperature in a lithium polymer electrolyte cell. Excellent reversibility and high rate performance have been observed from a spinel phase prepared at 450 °C and of general formula Li x Mn 2− z O 4 (0 ⩽ x ⩽ 1.33, 0 ⩽ z ⩽ 0.33). This phase has a characteristic cubic lattice parameter of ∼ 8.19 Å: less than that found in the stoichiometric spinel material LiMn 2O 4.
ISSN:0378-7753
1873-2755
DOI:10.1016/0378-7753(91)85022-O