Composite negative electrode materials and electrochemical cells including the same
US12308438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Aug 30, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode for an electrochemical cell that cycles lithium ions includes a particulate component embedded in a polymeric matrix component that comprises polytetrafluoroethylene. The particulate component includes a plurality of composite particles, with each of the composite particles having a core and a selective barrier layer disposed on a surface of the core. The core of each of the composite particles includes an electroactive negative electrode material. The selective barrier layer of each of the composite particles is formulated to prevent or inhibit electrochemical reactions from occurring between lithium stored in the electroactive negative electrode material of the core and the polytetrafluoroethylene in the polymeric matrix component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.