Lamination type secondary battery
US6692866B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Aug 1, 2022 |
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 lamination type secondary battery, in which accurate positioning can be performed for positive electrodes and negative electrodes arranged face-to-face to each other. The invention provides a lamination type secondary battery, which comprises positive electrodes and negative electrodes having different surface areas, said positive electrodes and said negative electrodes being laminated on each other with a separator between them, each of the electrodes having smaller surface area is arranged at the center with equal spacing from outer periphery of a separator main body and is covered with the separator main body, and outer periphery of each of the electrodes having larger surface area is equal in size with outer periphery of the separator main body to cover the electrode having smaller surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.