US 2006/0216600 A1 · Battery pack and vehicle

Abstract

A battery pack includes nonaqueous electrolyte batteries each comprising a positive electrode and a negative electrode. The positive electrode contains a lithium-transition metal oxide having a layered crystal structure. The negative electrode contains a lithium-titanium composite oxide having a spinel structure. And the positive electrodes and the negative electrodes satisfy the formula (1) given below: 1.02≦X≦2 (1) where X is a ratio of an available electric capacity of each of the negative electrodes at 25° C. to an available electric capacity of each of the positive electrodes at 25° C.

Claims20

Dependent claims

A battery pack comprising nonaqueous electrolyte batteries, each comprising:

a positive electrode containing a lithium-transition metal oxide having a layered crystal structure;
a negative electrode containing a lithium-titanium composite oxide having a spinel structure;
and
a nonaqueous electrolyte,
wherein the positive electrodes and the negative electrodes satisfy the formula (1) given below:
1.02≦X≦2 (1)
where X is a ratio of an available electric capacity of each of the negative electrodes at 25° C. to an available electric capacity of each of the positive electrodes at 25° C.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/260,410Filed 28 Oct 2005

Priority

JP 2005-08597924 Mar 2005

Published

28 Sep 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/485
Of inorganic oxides or hydroxides: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505
Of manganese: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525
Of nickel, cobalt or iron: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g.…

Battery pack and vehicle

Life of this patent

Battery pack and vehicle

Life of this patent

Abstract

Claims20