Solvay Sa

Other

E.i. Dupont De Nemours and Company

Syensqo Sa

Stephen E Burkhardt

Kostantinos Kourtakis

Mark Gerrit Roelofs

Jun J Liu

Brian Levy-Polis

Sang-Hwan Kim

Samuel David Arthur

Christopher P Junk

Kenneth Gene Moloy

Charles J Dubois

Xudong Chen

William L Holstein

Peter Anthony Fox

Shuhong Wang

Stephen Manzo

Disclosed herein are non-aqueous electrolyte compositions comprising a fluorinated solvent, a carbonate co-solvent, at least one 2-furanone derivative, and at least one electrolyte salt. In some embodiments, the electrolyte compositions further comprise a cyclic sulfate. 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.

Nonaqueous electrolyte compositions comprising a fluorinated solvent and a 2-furanone

Disclosed herein are electrolyte compositions comprising a fluorinated solvent, at least one silyl oxalate represented by the formulas RR'Si(CO), wherein R and R&#x2032; are each the same or different from each other and independently selected from C-Calkyl, C-Calkenyl, C-Calkynyl, or C-Caryl 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(CO), 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.

Nonaqueous electrolyte compositions comprising silyl oxalates

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.

Nonaqueous electrolyte compositions comprising cyclic carbonate and non-fluorinated acyclic carbonate

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.

Nonaqueous electrolyte compositions comprising fluorinated sulfones

Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(Ox), 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.

Nonaqueous electrolyte compositions comprising lithium oxalato phosphates

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.

Electrolytes containing six membered ring cyclic sulfates

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.

Nonaqueous electrolyte compositions

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.

Nonaqueous electrolyte compositions comprising sultone and fluorinated solvent

Curing fluoroelastomers with curing agents of formulas (I), (II), (III), and (IV): wherein each of R, R, R, R, R, R, R, and R, is selected from the group consisting of H; halogen atom; C1 to C4 alkyl groups in which the alkyl group is linear, branched, or cyclic; OR'; and aromatic groups;

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Wilmington, DE, United States of America

Stephen E Burkhardt