Nonaqueous electrolyte secondary battery
US6506514B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a nonaqueous electrolyte secondary battery, comprising a battery element produced by laminating and winding up a positive electrode and a negative electrode with a separator interposed therebetween. A separator is not provided on the outermost periphery of the battery element. A current collector surface of one of the positive electrode or the negative electrode is exposed to the ambient environment. A separation-preventive tape is attached on the battery element except a portion of one of the longer sides on the outermost periphery. This battery increases battery capacity of the thin-walled type nonaqueous electrolyte secondary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.