Electrolyte chemical formulations incorporating polymers
US12308399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2024 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Sep 3, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses methods and materials for adding a polymer material to a liquified gas electrolyte solution for use in an electrochemical energy storage device such as a lithium-ion battery or a related technology to further improve the battery cell's safety properties. An example device includes an ionically conducting electrolyte comprised of a liquefied gas solvent, a salt, and a polymer. The liquefied gas solvent has a vapor pressure above 100 kPa at a temperature of 293.15 K, and the polymer is at a low enough concentration that it is fully dissolved into the liquefied gas solvent. The device may include an anode, a cathode, and a separator layer in contact with the ionically conducting electrolyte. A housing may enclose the ionically conducting electrolyte, the anode, the cathode and the separator layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.