US 2026/0094843 A1Published application

Battery cell and electric device

AssigneeNingde Amperex Technology Limited

InventorsBiao WU, Fang LV, Zhaozhao LIU

Life of this patent

Estimating the term…

Loading patent…

Abstract

A battery cell includes a housing, an electrode assembly, a conductive member, and a protective layer. The electrode assembly is accommodated in the housing. The electrode assembly includes a first electrode plate and a second electrode plate with opposite polarities. The first electrode plate includes a first current collector and a first active substance layer. The first current collector includes a main body portion and a first region located in a width direction of the first electrode plate, the first active substance layer being provided on a surface of the main body portion and the first active substance layer being not provided on a surface of the first region. The conductive member is welded to the first region to form a welding region. The protective layer is disposed on a surface of the welding region.

Claims20

Dependent claims

A battery cell, comprising an electrode assembly and a conductive member, wherein the electrode assembly comprises a first electrode plate and a second electrode plate with opposite polarities, the first electrode plate comprises a first current collector and a first active substance layer;

and the first current collector comprises a first conductive layer, an insulation layer, and a second conductive layer;
wherein in a width direction of the first electrode plate, the first current collector comprises a main body portion and a first region, the first active substance layer being provided on a surface of the main body portion and the first active substance layer being not provided on a surface of the first region;
the conductive member is disposed on both the first conductive layer and the second conductive layer, and is welded to the first region to form a welding region for mutual conductive connection;
and
the battery cell further comprises a protective layer, wherein the protective layer is disposed on a surface of the welding region.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/351,334Filed 7 Oct 2025
Priority: CN 202310365701.47 Apr 2023
Published: 2 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H01M 4/667
Composites: in the form of layers, e.g. coatings
H01M 50/54
Electrode connections inside a battery casing: connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or…
H01M 4/02
Electrodes: electrodes composed of, or comprising, active material
H01M 4/668
Selection of materials: composites of electroconductive material and synthetic resins

Family

Application19/351,334Continuation
US 2026/0094843 A1This patent

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

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key