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US 2022/0029201 A1Published application
Lithium-ion secondary battery
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakumi HIASA, Kazunari MOTOHASHI
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Abstract
A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material. The electrolytic solution includes a cyclic sulfuric acid ester compound, a cyclic ether compound, and a chain alkyl dinitrile compound. A ratio of a weight (mg) of the cyclic sulfuric acid ester compound to a weight (g) of the positive electrode active material is from 0.01 to 2.
Claims12
A lithium-ion secondary battery comprising:
- a positive electrode that includes a positive electrode active material;
- a negative electrode;
- and
- an electrolytic solution that includes a cyclic sulfuric acid ester compound represented by Formula (1), a cyclic ether compound represented by Formula (2), and a chain alkyl dinitrile compound represented by Formula (3),
- wherein a ratio of a weight in milligrams of the cyclic sulfuric acid ester compound to a weight in grams of the positive electrode active material is from 0.01 to 2,
- wherein
- each of R1 to R6 represents one of a hydrogen group and a monovalent hydrocarbon group, and
- n1 is an integer of 0 or greater,
- wherein
- each of R7 to R12 represents one of a hydrogen group and a monovalent hydrocarbon group, and
- each of n2 and n3 is an integer of 1 or greater, and
- wherein
- each of R13 to R16 represents one of a hydrogen group and a monovalent hydrocarbon group, and
- n4 is an integer of 0 or greater.
11 more elements
Dependencies are inferred from the claim text.