公开(公告)号：US11316201B2

公开(公告)日：2022-04-26

申请号：US16016304

申请日：2018-06-22

Applicant: Solvay SA

Inventor： Charles J. Dubois ,  Viacheslav A. Petrov ,  Mark Gerrit Roelofs

IPC: H01M10/0569 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/131 ,  H01M4/525 ,  H01M4/485 ,  H01M4/587 ,  H01M4/02

Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.

公开(公告)号：US10916805B2

公开(公告)日：2021-02-09

申请号：US14244984

申请日：2014-04-04

Applicant: Solvay SA

Inventor： Xudong Chen ,  Charles J. Dubois ,  William L. Holstein ,  Kostantinos Kourtakis ,  Mark Gerrit Roelofs

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/485

Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.