Lithium secondary battery
AssigneeMitsui Chemicals, Inc.
InventorsKei SUGAWARA, Hidenobu NOGI, Keita NAGAKAWA
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Abstract
A lithium secondary battery includes: a positive electrode that includes a positive electrode active material including a compound represented by the following Formula (X) and a binder including a polyvinylidene fluoride having a weight average molecular weight of from 300,000 to 950,000; a negative electrode; and a non-aqueous electrolytic solution that includes at least one of lithium difluorophosphate or lithium monofluorophosphate. In Formula (X), each of a, b, and c is independently more than 0 but less than 1.00, and the sum of a, b, and c is from 0.99 to 1.00. LiNiaMnbCocO2 (X)
Claims6
A lithium secondary battery, comprising:
- a positive electrode that includes a positive electrode active material including a compound represented by the following Formula (X) and a binder including a polyvinylidene fluoride having a weight average molecular weight of from 300,000 to 950,000;
- a negative electrode;
- and
- a non-aqueous electrolytic solution that includes at least one of lithium difluorophosphate or lithium monofluorophosphate:
- LiNiaMnbCocO2 (X)
- wherein, in Formula (X), each of a, b, and c is independently more than 0 but less than 1.00, and a sum of a, b, and c is from 0.99 to 1.00.
Dependencies are inferred from the claim text.