Non-aqueous electrolyte secondary cell
AssigneeSony Corporation
InventorsHideki Terashima, Yuzuru Fukushima, Kimio Takahashi, Hiroko Ohnuma, Kotaro Satori, Akinori Kita
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Abstract
The present invention provides a non-aqueous electrolyte secondary cell including: a cathode containing a manganese oxide or a lithium-manganese composite oxide; an anode containing a lithium metal, a lithium alloy, or a material capable of doping/dedoping lithium; and an electrolyte containing at least two electrolyte salts, one of which is LiBF4 contained in the range from 0.005 mol/l to 0.3 mol/l. This enables to increase the cycle characteristic, preventing deterioration of the cell characteristic caused by a repeated use.
Claims6
A non-aqueous electrolyte secondary cell comprising:
- a cathode containing a manganese oxide or a lithium-manganese composite oxide;
- an anode containing a lithium metal, a lithium alloy, or a material capable of doping/dedoping lithium;
- and
- an electrolyte containing at least two electrolyte salts;
- wherein one of the electrolyte salts is LiBF4 contained in the range from 0.005 mol/l to 0.05 mol/l.
Dependencies are inferred from the claim text.