Positive-electrode active material and battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsRyuichi Natsui, Kensuke Nakura
Life of this patent
Estimating the term…
Abstract
A positive-electrode active material contains a compound that has a crystal structure belonging to a space group FM3-M and that is represented by the composition formula (1) and a lithium ion conductor, LixMeyOαFβ (1) wherein Me denotes one or two 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 the following conditions are satisfied. 1.7≤x≤2.2 0.8≤y≤1.3 1≤α≤2.5 0.5≤β≤2
Claims18
A positive-electrode active material comprising:
- a compound that has a crystal structure belonging to a space group FM-3M and is represented by the composition formula (1);
- and a lithium ion conductor,
- LixMeyOαFβ (1),
- wherein Me denotes one or two 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 the following conditions are satisfied:
- 1.7≤x≤2.2,
- 0.8≤y≤1.3,
- 1≤α≤2.5,
- 0.5≤β≤2, and
- wherein the lithium ion conductor is at least one selected from the group consisting of LiBO2, LiNbO3, and LiNbO2.
A positive-electrode active material comprising:
- a compound that has a crystal structure belonging to a space group FM-3M and is represented by the composition formula (1);
- and a lithium ion conductor,
- LixMeyOαFβ (1),
- wherein Me denotes one or two 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 the following conditions are satisfied:
- 1.7≤x≤2.2,
- 0.8≤y≤1.3,
- 1≤α≤2.5,
- 0.5≤β≤2, and
- x+y=αβ=3,
- wherein the lithium ion conductor is at least one selected from the group consisting of LiBO2, Li3PO4, LiNbO3, and LiNbO2.
A positive-electrode active comprising:
- a compound that has a crystal structure belonging to a space group FM-3M;
- and a lithium ion conductor,
- wherein the compound is Li2MnO2F or Li2CoO2F, and
- wherein the lithium ion conductor is at least one selected from the group consisting of LiBO2, Li3PO4, LiNbO3, and LiNbO2.
Dependencies are inferred from the claim text.