Rechargeable lithium battery
US11424453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Oct 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2300/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rechargeable lithium battery includes a positive electrode, a negative electrode, and an electrolyte including a lithium salt, wherein at least one of the positive electrode and the negative electrode includes a current collector, an electrode tab extending from the current collector, an active material layer disposed on the current collector, and a passivation film formed on at least one of the current collector and the electrode tab. The passivation film includes a material represented by Chemical Formula 1: CuX(POF2)nY2Z, Chemical Formula 1 wherein, in Chemical Formula 1, X is a C1 to C10 alkylene group, Y is represented by Chemical Formula 2, Z is an anion group of the lithium salt, and n is 1 or 2: NC—R1—CN, (wherein, R1 is a C1 to C10 alkylene group). Chemical Formula 2
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.