High-power and fast-chargeable lithium battery
US10734671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a lithium-ion battery containing an anode, a cathode, a porous separator, and an electrolyte, wherein the cathode comprises particles of a cathode active material that are packed together to form a cathode active material layer having interstitial spaces to accommodate a lithium ion receptor disposed therein and configured to receive lithium ions from the anode and enable lithium ions to enter the particles in a time-delayed manner, wherein the receptor comprises lithium-capturing groups selected from (a) redox forming species that reversibly form a redox pair with a lithium ion when the battery is charged; (b) electron-donating groups interspaced between non-electron-donating groups; (c) anions and cations wherein the anions are less or more mobile than the cations; (d) chemical reducing groups that partially reduce lithium ions from Li+1 to Li+δ, wherein 0<δ<1; (e) an ionic liquid; or (f) a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.