Conductive resin composition for electrodes, electrode composition, electrode using same and lithium ion battery
US11028209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Feb 1, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
[Problem]To provide a conductive resin composition for electrodes which is excellent in dispersibility and oxidation resistance. To provide: an electrode composition employing the conductive resin composition for electrodes and having a low viscosity; an electrode employing the electrode composition and having a low electrode plate resistance; and a lithium ion battery having a high energy density, high output characteristics and a high cyclability.[Solution]A conductive resin composition for electrodes, comprising a dispersant, a conductive agent, and a binding material, wherein: the dispersant comprises a graft copolymer in which a monomer containing acrylonitrile as a main component is grafted onto polyvinyl alcohol; the average degree of polymerization of the polyvinyl alcohol is 300 to 3,000 and the degree of saponification of the same is 90 mol % to 100 mol %; and the polyvinyl alcohol content and the polyacrylonitrile content in the graft copolymer are, respectively, 10 mass % to 40 mass % and 90 mass % to 60 mass %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.