Terminal for secondary battery and secondary battery provided with the terminal
US12100865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Aug 19, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The technique disclosed herein provides a terminal that enables welding with an external member to be realized without requiring surface treatment of a metallic portion having been pressure-welded during ultrasonic welding. The terminal disclosed herein is a terminal constituting any of positive and negative electrodes of a secondary battery and includes a plate-like metallic first member and a metallic second member which is ultrasonically welded to one plate surface of the first member. A recessed portion is formed on a surface on an opposite side to the surface, to which the second member is welded, of the first member, and ultrasonic welding between the first member and the second member is realized in the recessed portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.