Battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakayuki Nakatsutsumi, Ryuichi Natsui, Nobuhiko Hojo
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Abstract
A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including a nonaqueous solvent. The positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1): LixMeyOαFβ, where, Me is one or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and Cr; and subscripts x, y, α, and β satisfy the following requirements: 1.7≤x≤2.2, 0.8≤y≤1.3, 1≤α≤2.5, and 0.5≤β≤2. The nonaqueous solvent includes a solvent having at least one fluoro group.
Claims13
A battery comprising:
- a positive electrode including a positive electrode active material;
- a negative electrode;
- and
- an electrolytic solution including a nonaqueous solvent, wherein
- the positive electrode active material includes a compound having a crystal structure belonging to a space group FM-3M and represented by Compositional Formula (1):
- LixMeyOαFβ (1)
- where Me is at least one element selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and Cr;
- and
- subscripts x, y, α, and β satisfy the following requirements:
- 1.7≤x<2,
- 0.8≤y≤1.3,
- 1≤α≤2.5,
- 0.5≤β≤2, and
- x+y=α+β=3, and
- the nonaqueous solvent includes a solvent having at least one fluoro group,
- wherein the solvent having at least one fluoro group is included in the nonaqueous solvent at a volume percent ranging from 20% to where the nonaqueous solvent is composed of substantially only the solvent having at least one fluoro group.
Dependencies are inferred from the claim text.