Method for preparing negative electrode material for battery, lithium ion battery and solid-state battery
US11476454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jul 31, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for preparing a negative electrode material for a battery, the method comprising the following steps: a) dry-mixing the following components, without adding any solvent, to obtain a dry mixture: polyacrylic acid, a silicon-based material, and an alkali metal hydroxide and/or an alkaline earth metal hydroxide, and an optionally present carbon material; and b) mixing the dry mixture obtained in step a) with an aqueous solvent, to obtain the negative electrode material. The present invention also provides a lithium ion battery and a solid-state battery, wherein a negative electrode of the lithium ion battery and the solid-state battery is prepared from the negative electrode material obtained by the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.