Non-aqueous lithium ion secondary battery
AssigneeFuji Photo Film Co., Ltd.
InventorTsutomu Miyasaka
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Abstract
A non-aqueous lithium ion secondary battery is composed of a positive electrode, a negative electrode, and non-aqueous electrolyte. In the battery, the positive electrode is composed of an positive electrode active material of the formula: Li.sub.x Ni.sub.1-y M.sub.y O.sub.2-z X.sub.a in which M is at least one element such as Mg, Ca, B, Al, Ga, In, Si, Sn, Ge, Pb and at least one transition metal element; X is a halogen atom; x, y, z and a are numbers satisfying the conditions of 0.2<x.ltoreq.1.2, 0<y.ltoreq.0.5, 0.ltoreq.z.ltoreq.1 and 0.ltoreq.a.ltoreq.2z, and the negative electrode is composed of amorphous metal complex oxide or a combination of crystalline and/or amorphous metal complex oxide and carbonaceous material.
Claims7
A non-aqueous lithium ion secondary battery which comprises a positively electrode comprising an active material of lithium-containing metal complex oxide, a negative electrode comprising amorphous metal complex oxide, and a non-aqueous electrolyte, wherein the lithium-containing metal complex oxide is a lithium-containing nickel metal complex oxide of the following formula:
- Li.sub.x Ni.sub.1-y M.sub.y O.sub.2-z X.sub.a
- wherein M represents at least one element selected from the group consisting of Mg, B, Al, Sn, Si, Ga, Mn, Fe, Ti, Nb, Zr, Mo and W;
- X is a halogen atom;
- x, y, z and a are numbers satisfying the conditions of 0.2<x.ltoreq.1.2, 0.ltoreq.y.ltoreq.0.5, 0.01.ltoreq.z.ltoreq.0.25, and 0.02.ltoreq.a.ltoreq.0.5, respectively.
A non-aqueous lithium ion secondary battery which comprises a positive electrode comprising an active material of lithium-containing metal oxide, a negative electrode comprising carbonaceous material and at least one metal complex oxide, and a non-aqueous electrolyte, wherein the lithium-containing metal oxide is a lithium-containing nickel metal complex oxide of the following formula:
- Li.sub.x Ni.sub.1-y M.sub.y O.sub.2-z X.sub.a
- wherein M represents at least one element selected from the group consisting of Mg, B, Al, Sn, Si, Ga, Mn, Fe, Ti, Nb, Zr, Mo and W;
- X is a halogen atom;
- x, y, z and a are numbers satisfying the conditions of 0.2<x.ltoreq.1.2, 0<y.ltoreq.0.5, 0.01.ltoreq.z.ltoreq.0.25, and 0.02.ltoreq.a.ltoreq.0.5, respectively.
Dependencies are inferred from the claim text.