Method for manufacturing rechargeable battery
US11929481B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 30, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Nov 30, 2042 |
Classification
- Technology area (CPC —)General
Abstract
A method for manufacturing a rechargeable battery includes forming a mixture layer and an insulating layer on an electrode substrate having an edge extending in a specified direction so that an exposed portion where the electrode substrate is exposed extends between the edge and the insulating layer; pressing the mixture layer; and stretching an extension portion, located between the edge and the mixture layer, and the insulating layer in the specified direction. The stretching includes applying a stress greater than or equal to yield stress of the electrode substrate or greater than or equal to 0.2% proof stress of the electrode substrate and less than tensile strength of the electrode substrate to the extension portion, and applying a stress greater than or equal to yield stress of the insulating layer or greater than or equal to 0.2% proof stress of the insulating layer to the insulating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.