Electrolyte and electrochemical device
US12412930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | May 10, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte includes diglycolic anhydride and a trinitrile compound, with which the cycle performance and the high-temperature stability under over-discharge conditions of lithium-ion batteries are significantly improved. The electrolyte includes a compound of Formula I; and at least one of a compound of Formula II or a compound of Formula III; R1, R2, R3 and R4 are each independently selected from hydrogen, halo, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C2-C10 alkynyl, substituted or unsubstituted C6-C12 aryl, substituted or unsubstituted C1-C10 alkoxy, or substituted or unsubstituted C6-C12 aryloxy, wherein when substituted, the substituent is halo, cyano, or C1-C10 alkyl; and a, d and f are each independently selected from an integer from 1 to 5, and b, c, e, g, h and i are each independently selected from an integer from 0 to 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.