公开(公告)号：US11038196B2

公开(公告)日：2021-06-15

申请号：US16333316

申请日：2017-09-12

Applicant: SOLVAY SA

Inventor： Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Brian Levy-Polis

IPC: H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58

Abstract: Disclosed herein are electrolyte compositions comprising at least one electrolyte component comprising a cyclic carbonate, such as a fluoroethylene carbonate, and at least one additive comprising a 6-member ring heterocyclic sulfate, such as a 1,3 propylene sulfate. The disclosed electrolyte compositions can comprise additional electrolyte components, such as fluorinated acyclic carboxylic acid esters, and additional additives, such as lithium boron compounds, and cyclic carboxylic acid anhydrides, such as maleic anhydride. The improved battery performances, which include high temperature cycling conditions and/or room temperature stability, make these electrolyte compositions useful in electrochemical cells, such as lithium ion batteries.

公开(公告)号：US11374260B2

公开(公告)日：2022-06-28

申请号：US16305438

申请日：2016-06-03

Applicant: SOLVAY SA

Inventor： Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Mark Gerrit Roelofs

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525

Abstract: Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

公开(公告)号：US10673096B2

公开(公告)日：2020-06-02

申请号：US15503794

申请日：2015-08-12

Applicant: Solvay SA

Inventor： Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Jun J. Liu ,  Mark Gerrit Roelofs ,  Sang-Hwan Kim

IPC: H01M10/0569 ,  H01M6/16 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

Abstract: Described are electrolyte compositions comprising a fluorinated solvent, an organic carbonate, a sultone, and optionally a borate. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or mixtures thereof. The organic carbonate may be fluorinated or non-fluorinated. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

公开(公告)号：US20230395858A1

公开(公告)日：2023-12-07

申请号：US18451633

申请日：2023-08-17

Applicant: Solvay SA

Inventor： Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Mark Gerrit Roelofs ,  Charles J. Dubois

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/5825 ,  H01M2004/027 ,  H01M4/525 ,  H01M4/505 ,  H01M2300/0051 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M4/583

Abstract: The present disclosure is related to an electrolyte composition comprising from 30 to 80% by weight of CH3CO2CH2CF2H, from 10 to 60% by weight of ethylene carbonate or propylene carbonate, from 0.1 to 1.0% by weight of lithium bis(oxalate) borate, from 0.2 to 2.0 moles/L of lithium hexafluorophosphate and from 0.1 to 2% by weight of fluoroethylene carbonate, where the amounts of compounds are based on the total weight of the electrolyte composition, and where when used as an electrolyte in a lithium-ion battery, the composition exhibits an 80% cycle life of at least 250 at a cycling rate is 240 mA/g.

公开(公告)号：US11476502B2

公开(公告)日：2022-10-18

申请号：US16317918

申请日：2017-07-06

Applicant: SOLVAY SA

Inventor： Stephen E. Burkhardt ,  Jun J. Liu ,  Sang-Hwan Kim ,  Kostantinos Kourtakis

IPC: H01M10/0569 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0567 ,  H01M10/052 ,  H01M4/02

Abstract: Disclosed herein are electrolyte compositions comprising: a) a first solvent comprising a cyclic carbonate; b) a second solvent comprising a non-fluorinated acyclic carbonate; c) at least one electrolyte component selected from: i) a fluorinated acyclic carboxylic acid ester; ii) a fluorinated acyclic carbonate; iii) a fluorinated acyclic ether; or iv) a mixture thereof; and d) an electrolyte salt; wherein the electrolyte component is present in the electrolyte composition in the range of from about 0.05 weight percent to about 10 weight percent, based on the total weight of the first and second solvents.

公开(公告)号：US11489198B2

公开(公告)日：2022-11-01

申请号：US16326466

申请日：2017-07-27

Applicant: SOLVAY SA

Inventor： Kenneth Gene Moloy ,  Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Brian Levy-Polis

IPC: H01M10/0567 ,  H01M10/0569 ,  C07F7/18 ,  H01M10/0568 ,  H01M10/0525

Abstract: Disclosed herein are electrolyte compositions comprising a fluorinated solvent, at least one silyl oxalate represented by the formulas RR′Si(C2O4), wherein R and R′ are each the same or different from each other and independently selected from C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or C6-C10 aryl radical, optionally comprising at least one substituent selected from halogen, hydroxyl, alkoxy, carbonyl, and carboxyl groups; and LiPF6. Also disclosed herein are electrolyte compositions comprising a fluorinated solvent and a lithium oxalato phosphate salt represented by the formula LiPF(6-2q)(C2O4)q, wherein q is 1, 2 or 3; wherein the oxalato phosphate salt comprises at least a portion that is derived from at least one silyl oxalate as defined herein. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

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.

公开(公告)号：US10686220B2

公开(公告)日：2020-06-16

申请号：US14244968

申请日：2014-04-04

Applicant: Solvay SA

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

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

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.

公开(公告)号：US20170250445A1

公开(公告)日：2017-08-31

申请号：US15503794

申请日：2015-08-12

Applicant: Solvay SA

Inventor： Stephen E. Burkhardt ,  Kostantinos Kourtakis ,  Jun J. Liu ,  Mark Gerrit Roelofs ,  Sang-Hwan Kim

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568

Abstract: Described are electrolyte compositions comprising a fluorinated solvent, an organic carbonate, a sultone, and optionally a borate. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or mixtures thereof. The organic carbonate may be fluorinated or non-fluorinated. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.