Quasi-solid-state electrolyte based on ionic liquid for use in lithium battery and preparation method thereof
US11631886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2019 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Jul 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an ionic liquid-based quasi-solid-state electrolyte in a lithium battery and a preparation method thereof. The quasi-solid-state electrolyte is of a porous network structure, which is obtained by a condensation reaction of a lithium salt, ionic liquid, a silane coupling agent and a catalyst, and has a high ionic conductivity. The quasi-solid-state electrolyte can stabilize a stripping/deposition process of lithium metal and inhibit growth of lithium dendrites, and shows a low overpotential and long-term cycle stability in a constant current polarization process. The interface impedance of a lithium metal sheet and the quasi-solid-state electrolyte is low, and is hardly increased with the age of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.