Binder composition for lithium ion secondary battery electrodes and use thereof
US6770397B1 · kind B1 · utility
25Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A binder composition comprising a polymer dispersed in a liquid dispersion medium, wherein the polymer comprises structural units represented by the following formula: wherein R1 is hydrogen, C1-4 alkyl group, or halogen, R2 is C1-20 alkyl group or C6-30 aryl group, R3 and R4 are hydrogen or methyl group, provided that R3 and R4 are not simultaneously methyl group, and n is an integer of 1-50. A lithium ion secondary battery having an electrode made by using this binder composition exibibits excellent characteristics at repetition of a charge-discharge cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.