Secondary battery
US8110309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2009 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Feb 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a secondary battery having positive electrode plates 14 and negative electrode plates, with insulating tapes 22A, 22B affixed to the cut end portions 14d, including an active material layer 14b portion thereof, of either the positive electrode plates 14 or the negative electrode plates, or both. These electrode plates are stacked or rolled alternately, with separators 23 interposed, into an electrode group that is sealed, together with electrolyte, inside a battery case. The insulating tapes 22A, 22B have an adhesive application area L2 and a nonadhesive application area L1, and are affixed in such a manner that the nonadhesive application area L1 is positioned centrally on the active material layer 14b of the electrode plate 14, and moreover so that part of the adhesive application area L2 is positioned on the active material layer 14b at the cut end portion 14d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.