Prismatic lithium ion rechargeable battery
US7803480B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2008 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Sep 6, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49114
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The provided is a prismatic lithium ion battery including an electrode assembly having a wound structure of a stack of a positive electrode, a separator, and a negative electrode. The stack has a first side edge and a second side edge, and the wound structure of the stack is formed by winding the stack around the first side edge. The wound structure of the stack has a side surface that is substantially parallel to the first side edge, and a top surface and a bottom surface, each of which is substantially perpendicular to the first side edge. A first tape is coupled to the second side edge portion of the stack of the electrode assembly, and a second tape covers the bottom surface and part of the side surface of the wound structure of the stack in a manner that the second tape does not overlap the first tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.