Solid polymer electrolyte including comb polymer containing polypentafluorostyrene grafted with solvating polymeric side chain
US12095032B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 12, 2021 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Feb 12, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid polymer electrolyte may include: (a) at least one comb polymer including a main chain formed from 1-ethenyl- and/or 1-allyl-2,3,4,5,6-pentafluorobenzene monomers, some of the monomer units of the main chain bearing polymeric side chains based on polymers that are solvents for alkali metal or alkaline-earth metal salts; the chains being grafted in the para position of the pentafluorophenyl groups; and (b) at least one alkali metal or alkaline-earth metal salt, in particular a lithium salt. A process may prepare such a solid polymer electrolyte film it may be used in an electrochemical system, in particular a lithium battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.