Non-aqueous electrolyte secondary cell
First Claim
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1. A non-aqueous electrolyte secondary cell comprising:
- a cathode comprising an active cathode material comprising a manganese oxide or a lithium manganese composite oxide, and from about 0.5 to about 20% by weight, based on dry weight of the active cathode material, of sodium carbonate;
an anode comprising lithium or lithium metal; and
a non-aqueous electrolyte.
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Abstract
Disclosed is a non-aqueous electrolyte secondary cell comprising a cathode made from a cathode compound that comprises a manganese oxide or a lithium-manganese composite oxide, a lithium metal anode or an anode comprising lithium or capable of doping and dedoping lithium ions, and a non-aqueous electrolyte, which is characterized in that the cathode compound contains an alkali metal carbonate of being from 0.5 to 20% by weight of the dry cathode compound. Even when used at high temperatures over room temperature for a long period of time, the cell is deteriorated little.
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Citations
14 Claims
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1. A non-aqueous electrolyte secondary cell comprising:
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a cathode comprising an active cathode material comprising a manganese oxide or a lithium manganese composite oxide, and from about 0.5 to about 20% by weight, based on dry weight of the active cathode material, of sodium carbonate; an anode comprising lithium or lithium metal; and a non-aqueous electrolyte. - View Dependent Claims (3, 5, 7, 8)
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2. A non-aqueous electrolyte secondary cell comprising a cathode comprising an active cathode material comprising a manganese oxide or a lithium-manganese composite oxide and from about 0.5 to about 20% by weight, based on dry weight of the active cathode material, of sodium carbonate;
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an anode capable of doping and dedoping lithium ions; and a non-aqueous electrolyte. - View Dependent Claims (4, 6, 9, 10, 11, 12, 13, 14)
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Specification