Lithium secondary battery and method of manufacturing the same
US8349491B2 · kind B2 · utility
0Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jun 20, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery contains a negative electrode binder containing a polyimide resin having a structure represented by the following chemical formula (1), and the polyimide resin having a molecular weight distribution such that the weight ratio of a polyimide resin having a molecular weight of less than 100,000 and a polyimide resin having a molecular weight from 100,000 to less than 200,000 is from 50:50 to 90:10:where n is an integer equal to or greater than 1, and R is a functional group represented by the following chemical formula (2) or (3):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.