Amorphous silicon-carbon composites and improved first coulombic efficiency
US10964935B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2020 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jun 5, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Compositions, anodes, and batteries are described herein and incorporate particulates that feature carbon matrices having embedded therein a plurality of amorphous silicon nanoparticles. One embodiment includes a particulate composed of a porous carbon matrix and a plurality of amorphous silicon nanoparticles affixed to an interior surface of the porous carbon matrix and adjacent to an open volume that defines specific pores. Yet another embodiment is an anode active particulate that features a plurality of amorphous silicon nanoparticles affixed to interior surfaces of a porous carbon matrix, where the anode active particulate has a “Standard-FCE” value that is about 5% greater than a “Standard-FCE” value of an analogous anode active particle having crystalline silicon nanocrystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.