Electrolyte for lithium secondary battery and lithium secondary battery including the same
US12046715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2021 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Jan 7, 2042 |
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 secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b<0.5, 0.005≤c<0.5, and a+b+c=1, and the electrolyte for a secondary battery comprises a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound represented by the following Chemical Formula 2:wherein R1 to R6 and R′ and R″ are independently of one another hydrogen or C1-C4 alkyl; L2 is —CR7R8—; and R7 and R8 are independently of each other C1-C4 alkyl .
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.