Process for producing a positive electrode for lithium secondary batteries
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United States of America Patent
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-
Mar 5, 1996
Grant Date -
N/A
app pub date -
Aug 9, 1994
filing date -
Aug 18, 1993
priority date (Note) -
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Abstract
An active material for a positive electrode for lithium secondary batteries and composed of a lithium-manganese oxide (Li.sub.x Mn.sub.2 O.sub.4) with a spinel structure is produced by mixing manganese dioxide with lithium formate (HCOOLi) and/or lithium acetate (CH.sub.3 COOLi), heating the resulting mixture for 10 to 100 hours, preferably at a temperature of from 600.degree. C. to 750.degree. C., and if necessary, grinding the heated mixture. The constituents of the mixture contain manganese and lithium in a molar ratio (Mn:Li) of 2:x, where 0.5
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