Silicon-based anode and method for manufacturing the same
US10283759B2 · kind B2 · utility
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Key dates
| Filing date | Jan 9, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jun 3, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A silicon-based anode comprising silicon, a carbon coating that coats the surface of the silicon, a polyvinyl acid that binds to at least a portion of the silicon, and vinylene carbonate that seals the interface between the silicon and the polyvinyl acid. Because of its properties, polyvinyl acid binders offer improved anode stability, tunable properties, and many other attractive attributes for silicon-based anodes, which enable the anode to withstand silicon cycles of expansion and contraction during charging and discharging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.