Sealed battery having a through-hole or hollow in a collector or collector receiving part
US8399122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2009 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sealed battery including an electrode assembly 11 having multiple positive electrode substrates exposed at one end and negative electrode substrates exposed at the other end; and collectors 18 and collector receiving parts 19 that are resistance-welded on both sides of the multiple positive or the multiple negative electrode substrates or both, a through-hole 30 being formed in at least one of the collectors 18 and the collector receiving parts 19, and the resistance welding being performed at the rim of the through-hole 30. With such sealed battery, the spattered particles 26 generated during the resistance welding are captured in the through-hole 30, and will rarely enter the interior of the electrode assembly 11 or splash out to the exterior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.