Prismatic battery
US8216715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A prismatic battery is provided with a fixing portion composed of projections 29Aa and 29Ba for fixing the position of a flat electrode assembly 11 and a battery outer can 12 by contacting with an insulating sheet 32 on at least one of a positive electrode collector member 16 and a negative electrode collector member 18. The insulating sheet 32 is provided between the projections 29Aa, 29Ba and the battery outer can 12. Tips 29Ab and 29Bb of the projections 29Aa and 29Ba project from the flat electrode assembly 11 towards the battery outer can 12 side. The height of the projections is smaller than the thickness of the insulating sheet 32. This prevents short-circuiting between the positive electrode collector member or the negative electrode collector member, and the battery outer can. Thus, a prismatic battery suitable for EVs and HEVs with excellent safety can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.