US 2019/0173088 A1Published application

Battery

AssigneeContemporary Amperex Technology Co., Limited

InventorsChengdu LIANG, Huafeng HUANG, Qisen HUANG

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Abstract

A battery is provided in the present disclosure. The battery includes: a positive electrode plate including a positive current collector and a positive active material layer; a negative electrode plate including a positive current collector and a negative active material layer; and an electrolyte. The positive current collector includes an insulation layer used to support a conductive layer and the conductive layer used to support the positive active material layer and located above at least one surface of the insulation layer. The conductive layer has a thickness of D2 which satisfies: 300 nm≤D2≤2 μm. A protective layer is arranged on at least one surface of the conductive layer. The negative current collector is a copper foil current collector having a thickness of 6 μm to 12 μm.

Claims11

Dependent claims

A battery, comprising

a positive electrode plate comprising a positive current collector and a positive active material layer;
a negative electrode plate comprising a negative current collector and a negative active material layer, and
an electrolyte,
wherein the positive current collector comprises an insulation layer and at least one conductive layer, the insulation layer is used to support the at least one conductive layer, each of the at least one conductive layer is used to support the positive active material layer and is located above at least one surface of the insulation layer, and each of the at least one conductive layer has a thickness of D2 satisfying:
300 nm≤D2≤2 μm,
wherein at least one protective layer is arranged on at least one surface of each of the at least one conductive layer, and
wherein the negative current collector is a copper foil current collector having a thickness of 6 μm to 12 μm.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/161,978Filed 16 Oct 2018
Priority: CN 201711268374.15 Dec 2017
Published: 6 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

H01M 4/661
Selection of materials: metal or alloys, e.g. alloy coatings
H01M 4/0404
Methods of deposition of the material: by coating on electrode collectors
H01M 4/36
Electrodes composed of, or comprising, active material: selection of substances as active materials, active masses, active liquids
H01M 4/625
Electric conductive fillers: carbon or graphite

Family

US 10,658,673 B2Related patent
US 2019/0173088 A1This patent

From the US filing history. Foreign family members aren’t listed.

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