Patent · US Active

Electrolytes for lithium ion batteries

US10199677B2 · kind B2 · utility

36Cited by

18References

10Claims

0Family size

Assignee

StoreDot, Ltd. · IL

Inventors

Zohar Drach · Ramat Gan, IL
Olga Guchok · Ramat Gan, IL
Leonid Krasovitsky · Rishon LeZion, IL
Ekaterina Gotlib Vainshtein · Petah Tikva, IL
Liron Amir · Ramat Gan, IL

Key dates

Filing date	Dec 18, 2017
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Dec 18, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.