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US 7,402,360 B2Granted
Non-aqueous electrolyte battery
AssigneeSanyo Electric Co., Ltd.
InventorsNaoki Imachi, Seiji Yoshimura, Shin Fujitani
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Abstract
The invention provides a non-aqueous electrolyte battery characterized in that: an active material of the positive electrode includes lithium manganese oxide; the shut-down temperature of the separator is 162° C. or lower; and the area contraction ratio of the separator at 120° C. is 15% or less.
Claims9
A non-aqueous electrolyte battery comprising a positive electrode, a negative electrode, non-aqueous electrolyte and a separator,
- wherein an active material of the positive electrode includes lithium manganese oxide;
- said separator comprises polypropylene or polyethylene;
- the shut-down temperature of said separator is 162° C. or less;
- and the area contraction ratio of said separator at 120° C. is 15% or less.
1 more element
A non-aqueous electrolyte battery having a positive electrode, a negative electrode, non-aqueous electrolyte and a separator,
- wherein an active material of the positive electrode includes lithium manganese oxide;
- said separator comprises polypropylene or polyethylene;
- the shut-down temperature of said separator is 162° C. or lower;
- and the difference between the film-breaking temperature and the shut-down temperature is 20° C. or higher at the time when the temperature rises at 15° C./min. (wherein the film breaking temperature>the shut-down temperature).
1 more element
Dependencies are inferred from the claim text.