摘要:
An electrolyte for a non-aqueous electrolyte battery according to the present invention contains a non-aqueous organic solvent; a solute; and both of difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate as additives. A non-aqueous electrolyte battery according to the present invention uses the above electrolyte. By the composite effect of the difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate in the non-aqueous electrolyte and the non-aqueous electrolyte battery, it is possible to improve not only the cycle characteristics and high-temperature storage stability of the battery but also the low-temperature characteristics of the battery at temperatures of 0° C. or lower.
摘要:
The invention relates to a process for synthesizing an ionic metal complex represented by the general formula (1) or (5). This process includes reacting in an organic solvent a compound (corresponding to ligand of the complex) represented by the general formula (2) or (6) with a halogen-containing compound represented by the general formula (3) or (4), in the presence of a reaction aid containing an element selected from the group consisting of elements of groups 1-4 and 11-14 of the periodic table. It is possible by this process to easily and efficiently synthesize the ionic metal complex, which can be used as a supporting electrolyte for electrochemical devices, a polymerization catalyst of polyolefins and so forth, or a catalyst for organic synthesis.
摘要:
The invention relates to an electrolyte for an electrochemical device. This electrolyte includes a first compound that is an ionic metal complex represented by the general formula (1). The electrolyte may further include at least one compound selected from second to sixth compounds respectively represented by the general formulas Aa+(PF6−)a, Aa+(ClO4−)a, Aa+(BF4−)a, Aa+(AsF6−)a, and Aa+(SbF6−)a, and special seventh to twelfth compounds. The electrolyte can be superior in heat resistance, hydrolysis resistance, cycle characteristics and shelf life as compared with conventional electrolytes.
摘要:
The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes a phosphazene compound represented by the following general formula (1): (NPR2)n (1) wherein each R independently represents fluorine or a secondary or tertiary branched alkoxy group substituted with fluorine, at least one of the Rs represents the secondary or tertiary branched alkoxy group substituted with fluorine, and n is from 3 to 14.
摘要:
The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes a phosphazene compound represented by the following general formula (1): (NPR2)n (1) wherein each R independently represents fluorine or a secondary or tertiary branched alkoxy group substituted with fluorine, at least one of the Rs represents the secondary or tertiary branched alkoxy group substituted with fluorine, and n is from 3 to 14.
摘要:
[Summary] An object of the present invention is to find a new electrolyte having a characteristics for the electrolyte for an electrochemical device and to provide excellent electrolytic solution for a nonaqueous electrolyte battery and nonaqueous electrolyte battery which use this.[Solving Means] To provide an electrolyte for an electrochemical device, having a chemical structure formula represented by a general formula (1). where M is a group 13 or 15 group element of the periodic table; A+ is an alkali metal ion or an onium ion; m is a number of 1-4 when M is a group 13 element, and is a number of 1-6 when M is a group 15 element; n is a number of 0-3 when M is a group 13 element, and is a number of 0-5 when M is a group 15 element; and R is a halogen atom, a C1-C10 halogenated alkyl group, a C6-C20 aryl group, a C6-C20 halogenated aryl group. The electrolyte may have a chemical structure formula obtained by introducing, in place of a hydrogen atom in the structure formula represented by the formula (1), a halogen atom, a chain or cyclic alkyl group, an aryl group, an alkenyl group, an alkoxy group, an aryloxy group, a sulfonyl group, an amino group, a cyano group, a carbonyl group, an acyl group, an amide group or a hydroxyl group, or a chemical structure formula obtained by introducing, in place of a carbon atom in the structure formula represented by the formula (1), a nitrogen atom, a sulfur atom or an oxygen atom, wherein the n-number of Rs are independent from each other and are the same as or different from each other.
摘要:
Disclosed is a production method of a lithium tetrafluoroborate solution for use as a lithium battery electrolytic solution, including: a reaction step of forming lithium tetrafluoroborate by reaction of lithium fluoride and boron trifluoride in a chain carbonate ester solvent and thereby obtaining a reaction solution of the lithium tetrafluoroborate dissolved in the chain carbonate ester solvent; a water removal step of adding a water removing agent to the reaction solution; an acidic impurity removal step of removing an acidic impurity component from the reaction solution by concentrating the reaction solution after the water removal step; and a dilution step of diluting the concentrated solution after the acidic impurity removal step. It is possible by this method to obtain the lithium tetrafluoroborate solution whose acidic impurity content and water content are reduced to be 50 mass ppm or lower and 15 mass ppm or lower, respectively.
摘要:
An electrolyte for a non-aqueous electrolyte battery according to the present invention contains a non-aqueous organic solvent; a solute; and both of difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate as additives. A non-aqueous electrolyte battery according to the present invention uses the above electrolyte. By the composite effect of the difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate in the non-aqueous electrolyte and the non-aqueous electrolyte battery, it is possible to improve not only the cycle characteristics and high-temperature storage stability of the battery but also the low-temperature characteristics of the battery at temperatures of 0° C. or lower.
摘要:
Disclosed is a production method of a lithium tetrafluoroborate solution for use as a lithium battery electrolytic solution, including: a reaction step of forming lithium tetrafluoroborate by reaction of lithium fluoride and boron trifluoride in a chain carbonate ester solvent and thereby obtaining a reaction solution of the lithium tetrafluoroborate dissolved in the chain carbonate ester solvent; a water removal step of adding a water removing agent to the reaction solution; an acidic impurity removal step of removing an acidic impurity component from the reaction solution by concentrating the reaction solution after the water removal step; and a dilution step of diluting the concentrated solution after the acidic impurity removal step. It is possible by this method to obtain the lithium tetrafluoroborate solution whose acidic impurity content and water content are reduced to be 50 mass ppm or lower and 15 mass ppm or lower, respectively.
摘要:
[Problems] An object of the present invention is to provide: a production method for commercially advantageously producing lithium difluorophosphate or an electrolyte solution containing the lithium difluorophosphate, the lithium difluorophosphate serving as an additive useful for improving performance of a nonaqueous electrolyte battery; and a nonaqueous electrolyte battery employing the electrolyte solution for the nonaqueous electrolyte battery which solution contains the lithium difluorophosphate produced by the production method.[Means for Solving Problems] To provide an electrolyte solution for a nonaqueous electrolyte battery which solution contains lithium difluorophosphate, in such a manner as to produce lithium difluorophosphate in the electrolyte solution by reacting a halide other than a fluoride, LiPF6 and water in a nonaqueous solvent, the lithium difluorophosphate serving as an additive useful for improving performance of the nonaqueous electrolyte battery.