US 2003/0170540 A1 · Positive-electrode active material and nonaqueous-electrolyte secondary battery containing the same

Abstract

The present invention provides a high-capacity and low-cost non-aqueous electrolyte secondary battery, comprising: a negative electrode containing, as a negative electrode active material, a ssubstance capable of absorbing/desorbing lithium ions and/or metal lithium; a separator; a positive electrode; and an electrolyte, wherein the positive electrode active material contained in the positive electrode is composed of crystalline particles of an oxide containing two kinds of transition metal elements, the crystalline particles having a layered crystal structure, and oxygen atoms constituting the oxide forming a cubic closest packing structure.

Claims20

Dependent claims

A positive electrode active material for a non-aqueous electrolyte battery, comprising crystalline particles of a lithium-containing oxide containing two kinds of transition metal elements,

said crystalline particles having a layered crystal structure, and
oxygen atoms constituting said lithium-containing oxide forming a cubic closest packing structure.

Dependencies are inferred from the claim text.

Facts

Application

10/333,269Filed 17 Jan 2003

Priority

JP 2001-8361022 Mar 2001

Published

11 Sep 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

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.…
H01M 4/13
Electrodes composed of, or comprising, active material: electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators;…
H01M 4/362
Selection of substances as active materials, active masses, active liquids: composites
H01M 4/505
Of manganese: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

Abstract

Facts

Application

10/333,269Filed 17 Jan 2003

Priority

JP 2001-8361022 Mar 2001

Published

11 Sep 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

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.…
H01M 4/13
Electrodes composed of, or comprising, active material: electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators;…
H01M 4/362
Selection of substances as active materials, active masses, active liquids: composites
H01M 4/505
Of manganese: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy

Positive-electrode active material and nonaqueous-electrolyte secondary battery containing the same

Life of this patent

Abstract

Claims20

Positive-electrode active material and nonaqueous-electrolyte secondary battery containing the same

Life of this patent

Abstract

Claims20