Electrode-rolled battery and method of manufacturing electrode-rolled battery
US6746796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2001 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is an electrode-rolled battery in which an anode and a cathode are rolled in a manner that a separator is put between the anode and the cathode and in which a plurality of collecting tabs is respectively provided with a plurality of cathode active material unformed parts and a plurality of anode active material forming parts; andwherein when a length of an outermost anode active material unformed part is set as “L”; and when a distance from the outermost anode active material unformed part to a center of a rolled body made up of the anode, the cathode and the separator, is set as “R”, a following expression is set:L≧2&pgr;R.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.