公开(公告)号：US20190296398A1

公开(公告)日：2019-09-26

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 ,  H01M10/0568 ,  H01M10/0525 ,  H01M4/131

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：US20190245243A1

公开(公告)日：2019-08-08

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 ,  H01M10/0568 ,  H01M10/0569 ,  C07F7/18

CPC classification number: H01M10/0567 ,  C07F7/1896 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0034

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：US20190334197A1

公开(公告)日：2019-10-31

申请号：US16333316

申请日：2017-09-12

Applicant: SOLVAY SA

Inventor： Stephen E. BURKHARDT ,  Kostantinos KOURTAKIS ,  Brian LEVY-POLIS

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

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：US20180241086A1

公开(公告)日：2018-08-23

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 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/131

CPC classification number: H01M10/0568 ,  H01M4/131 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2300/0034

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：US20200321657A1

公开(公告)日：2020-10-08

申请号：US16305438

申请日：2016-06-03

Applicant: SOLVAY SA

Inventor： Stephen E. BURKHARDT ,  Kostantinos KOURTAKIS ,  Mark Gerrit ROELOFS

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

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.