Silicon monoxide composite negative electrode material used for lithium ion battery, the preparation method thereof and a lithium ion battery
US10170754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2014 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a silicon monoxide composite negative electrode material, which comprises silicon monoxide substrate. Nano-Silicon material uniformly deposited on the silicon monoxide substrate and nanoscale conductive material coating layer on the surface of the silicon monoxide/Nano-Silicon. The preparation method of the silicon monoxide composite negative electrode material includes Nano-Silicon chemistry vapor deposition, nanoscale conductive material coating modification, screening and demagnetizing. The silicon monoxide composite negative electrode material has properties of high specific capacity (>1600 mAh/g), high charge-discharge efficiency of the first cycle (>80%) and high conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.