Electrolyte and electrochemical device
US11799131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2022 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical device, including an electrode and an electrolyte. The electrolyte including a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the weight percentage of the dinitrile compound is X, the weight percentage of the trinitrile compound is Y, and the weight percentage of the propyl propionate is Z. Wherein about 2 wt %≤(X+Y)≤ about 11 wt %, about 0.1≤(X/Y)≤ about 8. The electrode including a coating, which including a single-sided sub-coating and a double-sided coating, the electrode with the single-sided sub-coating has an electrode compaction density D1, and the electrode with the double-sided coating has an electrode compaction density D2, where about 0.8≤D1/D2≤ about 1.2. The electrolyte and D1/D2 of the electrodes has a significant effect on the cycle performance of the electrochemical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.