Lithium ion cells with silicon based active materials and negative electrodes with water-based binders having good adhesion and cohesion
US12355079B2 · kind B2 · utility
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Key dates
| Filing date | Jul 2, 2020 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Aug 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Polymer binders for negative electrodes with silicon based active materials are described based on poly(acrylamide-co-acrylate salts). Lithium ion batteries incorporating electrodes formed with the binders achieve longer cycling with suitable performance. Mechanical properties associated with each of the moieties of the copolymers are studied to guide polymer selection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.