Lithium secondary battery
First Claim
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1. A lithium secondary battery comprising:
- a negative electrode containing silicon as a negative electrode active material;
a positive electrode containing a lithium-transition metal composite oxide as a positive electrode active material; and
a non-aqueous electrolyte, wherein lithium carbonate is contained in the positive electrode, and carbon dioxide is dissolved in the non-aqueous electrolyte.
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Abstract
Charge-discharge cycle performance is improved in a lithium secondary battery utilizing a material containing silicon as a positive electrode active material. A lithium secondary battery includes a negative electrode (2) containing silicon as a negative electrode active material, a positive electrode (1) containing a lithium-transition metal composite oxide, and a non-aqueous electrolyte. Lithium carbonate is added in the positive electrode (1), and carbon dioxide is dissolved in the non-aqueous electrolyte.
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Citations
18 Claims
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1. A lithium secondary battery comprising:
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a negative electrode containing silicon as a negative electrode active material;
a positive electrode containing a lithium-transition metal composite oxide as a positive electrode active material; and
a non-aqueous electrolyte, wherein lithium carbonate is contained in the positive electrode, and carbon dioxide is dissolved in the non-aqueous electrolyte. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification