Abstract: An electrolyte composition and an electrochemical cell including the electrolyte composition are disclosed, including: at least one aprotic organic solvent; at least one conducting salt; methyl-2-methyl-1,3-dioxolane-2-carboxylate; and optionally one or more additives. A use of methyl-2-methyl-1,3-dioxolane-2-carboxylate in an electrolyte composition for electrochemical cells is disclosed. An electrochemical cell is also disclosed, in which the electrochemical cell is a lithium battery.

Abstract: An electrolyte composition and an electrochemical cell that includes the electrolyte composition are included. The electrolyte composition includes: at least one aprotic organic solvent; at least one conducting salt; methylphosphonoyloxymethane; and optionally one or more additives. The use of methylphosphonoyloxymethane in an electrolyte composition for electrochemical cells is also included.

Abstract: The invention relates to an electrolyte composition containing at least one compound of (I) wherein R1 is selected from C1 to C10 alkyl, and R2 is selected from O(C1 to C10 alkyl), OC(O)(C1 to C10 alkyl), OC(O)O(C1 to C10 alkyl), OS(O)2(C1 to C10 alkyl) and S(O)2O(C1 to C10 alkyl), wherein C1 to C10 alkyl may be substituted by one or more F and wherein one or more CH2— groups of C1 to C10 alkyl which are not bound directly to O may be replaced by O.

Abstract: The invention relates to an electrolyte composition containing (i) at least one aprotic polar organic solvent having a flash point above 80° C. and a dielectric constant above 10 at 25° C.; (ii) at least one flame retardant and/or non-flammable solvent; (iii) at least one compound of formula (I) R1—O(O)C—(CH2)n—C(O)O—R2 (I) wherein R1 and R2 are independently from each other selected from C1-C6 alkyl and n is 1, 2 or 3; (iv) at least one conducting salt; (v) at least one aprotic organic solvent having a dynamic viscosity below 1 mPa s at 25° C.; and (vi) optionally one or more additives.

Abstract: The invention relates to an electrolyte, comprising at least one lithium salt, a solvent, and at least one compound according to general formula (1). The invention further relates to lithium-based energy stores comprising such an electrolyte.

Abstract: An electrolyte composition and an electrochemical cell including the electrolyte composition are disclosed, including: at least one aprotic organic solvent; at least one conducting salt; methyl-2-methyl-1,3-dioxolane-2-carboxylate; and optionally one or more additives. A use of methyl-2-methyl-1,3-dioxolane-2-carboxylate in an electrolyte composition for electrochemical cells is disclosed. An electrochemical cell is also disclosed, in which the electrochemical cell is a lithium battery.

Abstract: An electrolyte composition and an electrochemical cell that includes the electrolyte composition are included. The electrolyte composition includes: at least one aprotic organic solvent; at least one conducting salt; methylphosphonoyloxymethane; and optionally one or more additives. The use of methylphosphonoyloxymethane in an electrolyte composition for electrochemical cells is also included.

Abstract: An electrolyte composition containing (i) at least one aprotic organic solvent; (ii) at least one conducting salt; (iii) acetic acid 2-[(methoxycarbonyl)oxy] methyl ester; and (vi) optionally one or more additives.

Abstract: The present invention relates to an electrolyte composition for lithium ion batteries which improves overcharge protection. In particular the present invention relates to an electrolyte composition comprising (a) a compound of general formula (I) and (b) at least two compounds of general formula (II) which are different from each other formula (II) with the definitions given in the description.

Abstract: Use of a compound of formula (I) wherein R1 and R2 are selected independently from each other from C1-C10 alkyl, which may be substituted by one or more F, or wherein R1 and R2 are linked and jointly selected from C2-C3 alkanediyl forming together with the group —OPO—a five- or six-membered heterocycle which may be substituted by one or more substituents selected from F and optionally fluorinated C1-C10 alkyl, as gelling agent in an aprotic organic solvent or solvent mixture.

Abstract: The present invention provides a compound with a general formula (I) or a salt thereof, wherein, R1 and R2, are, independently of each other, F or CnF2n+1 with n=1-10, and R3 and R4 are, independently of each other, C1-C10-alkyl.

Abstract: The invention relates to lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate, the use of lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate as electrolyte salt in lithium-based energy stores and also ionic liquids comprising 1-trifluoro-methoxy-1,2,2,2-tetrafluoro-ethanesulphonate as anion.

Abstract: An electrolyte composition containing (i) at least one aprotic organic solvent; (ii) at least one conducting salt; (iii) acetic acid 2-[(methoxycarbonyl)oxy] methyl ester; and (vi) optionally one or more additives.

Abstract: A liquid formulation is provided. The liquid formulation contains at least one aprotic organic solvent, at least one lithium salt, at least 1.5% by weight of a compound of formula (I) based on a total weight of the liquid formulation, essentially no 1,2,3,4-tetrahydronaphthalene, and optionally at least one additive other than (C): where R1 is C1-C6-alkyl, phenyl, or 2- and 4-pyridyl, which may be substituted with one or more moieties of F, CN, C1-C4-alkyl and CF3; each R2 is independently C1-C4-alkyl, CN, or fluorine; a is a number of from zero to four; and X is O—SO2—R1 or hydrogen.

Abstract: The present invention relates to an electrolyte composition for lithium ion batteries which improves overcharge protection. In particular the present invention relates to an electrolyte composition comprising (a) a compound of general formula (I) and (b) at least two compounds of general formula (II) which are different from each other formula (II) with the definitions given in the description.

Abstract: The invention relates to the use of lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate as a conductive salt in lithium-based energy stores and to electrolytes containing lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate.

Abstract: The invention relates to an electrolyte composition containing at least one compound of (I) wherein R1 is selected from C1 to C10 alkyl, and R2 is selected from O(C1 to C10 alkyl), OC(O)(C1 to C10 alkyl), OC(O)O(C1 to C10 alkyl), OS(O)2(C1 to C10 alkyl) and S(O)2O(C1 to C10 alkyl), wherein C1 to C10 alkyl may be substituted by one or more F and wherein one or more CH2— groups of C1 to C10 alkyl which are not bound directly to O may be replaced by O.

Abstract: The invention relates to an electrolyte composition containing (i) at least one aprotic polar organic solvent having a flash point above 80° C. and a dielectric constant above 10 at 25° C.; (ii) at least one flame retardant and/or non-flammable solvent; (iii) at least one compound of formula (I) R1—O(O)C—(CH2)n—C(O)O—R2 (I) wherein R1 and R2 are independently from each other selected from C1-C6 alkyl and n is 1, 2 or 3; (iv) at least one conducting salt; (v) at least one aprotic organic solvent having a dynamic viscosity below 1 mPa s at 25° C.; and (vi) optionally one or more additives.

Abstract: Use of a compound of formula (I) wherein R1 and R2 are selected independently from each other from C1-C10 alkyl, which may be substituted by one or more F, or wherein R1 and R2 are linked and jointly selected from C2-C3 alkanediyl forming together with the group -OPO- a five- or six-membered heterocycle which may be substituted by one or more substituents selected from F and optionally fluorinated C1-C10 alkyl, as gelling agent in an aprotic organic solvent or solvent mixture.

Abstract: The invention relates to lithium-2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate, to the use thereof as conductive salt in lithium-based energy accumulators, and ionic liquids comprising 2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate as an anion.