Electrolyte for lithium ion battery and lithium ion battery including the same
US10483590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2018 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | May 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application provides an electrolyte for lithium ion battery which comprising a mixture of organic solvents consisting of ethylene carbonate, ethyl methyl carbonate, dimethyl carbonate and carboxylate ester, wherein a mass ratio of ethylene carbonate, ethyl methyl carbonate, dimethyl carbonate and carboxylate ester is (20%-30%):(45%-55%):(10%-20%):(5%-15%); a mixture of additives consisting of vinylene carbonate, propane sultone, fluorinated ethylene carbonate and perfluorohexylsulfonyl fluoride; and a lithium salt. The electrolyte for lithium ion battery provided according to the present application has good wettability and high absorption rate. The present application also provides a lithium ion battery with high energy density, small internal resistance, good cycle performance and good charge and discharge performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.