公开(公告)号：US11289738B2

公开(公告)日：2022-03-29

申请号：US15749807

申请日：2016-06-03

Applicant: SOLVAY SA

Inventor： Samuel David Arthur ,  Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Brian Levy-Polis ,  Jun J. Liu ,  Mark Gerrit Roelofs

IPC: H01M10/0568 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/02

Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.