摘要:
Provided is a lithium sulfur secondary battery excellent in durability. An electrolytic solution to be used for a lithium sulfur secondary battery having a positive electrode containing a sulfur-containing electrode active material containing at least one selected from the group consisting of simple sulfur, lithium polysulfides (Li 2 S n : 1
摘要:
The invention provides a method for producing lithium ethyl sulfate comprising reacting diethyl sulfate with lithium carbonate to provide lithium ethyl sulfate.
摘要:
An object of the present invention is to provide a lithium cell exhibiting a high remaining capacity after high-temperature storage even if used at high voltages, and an electrolytic solution used for the cell. The present invention relates to an electrolytic solution containing a nonaqueous solvent; an electrolyte salt; and 10 vol% or more of a compound represented by the following formula (1) based on 100 vol% of the nonaqueous solvent, wherein R 1 , R 2 and R 3 may be the same as or different from one another, each representing a hydrogen atom, a fluorine atom, a C 1 -C 20 alkyl group, or a C 1 -C 20 fluorinated alkyl group, excluding cases where all of R 1 , R 2 , and R 3 are hydrogen atoms or fluorine atoms.
摘要:
Provided are an electrolytic solution for a secondary battery that can improve cycle characteristics, a secondary battery, and a module including the same. An electrolytic solution for a secondary battery, the secondary battery comprising a positive electrode and a negative electrode containing an alkali metal, wherein the positive electrode comprises at least one compound selected from the group consisting of an alkali metal-containing transition metal composite oxide and an alkali metal-containing transition metal phosphate compound, the electrolytic solution comprises a compound represented by the following formula (1) and/or a compound represented by the following formula (2):
摘要:
Provided are an electrolyte solution and the like that can reduce the resistance of an electrochemical device and improve the cycle characteristics. The disclosure relates to an electrolyte solution containing a compound (1) represented by the formula (1):
wherein R 1 and R 2 are each independently a C1-C4 alkyl group optionally containing an ether bond; and a compound (11) represented by the formula (11):
wherein R 101 and R 102 are each independently a substituent that is a C1-C7 alkyl group or the like. The substituent optionally contains one or more divalent to hexavalent hetero atoms in its structure, with one or more hydrogen atoms each optionally replaced by a fluorine atom or a C0-C7 functional group.
摘要:
The present invention provides an electrolytic solution capable of providing an electrochemical device (e.g., a lithium ion secondary battery) or a module that is less likely to generate gas even in high-temperature storage and has high capacity retention even after high-temperature storage. The present invention relates to an electrolytic solution which may contain a compound represented by Y 21 R 21 C-CY 22 R 22 wherein R 21 and R 22 may be the same as or different from each other, and are each H, an alkyl group, or a halogenated alkyl group; Y 21 and Y 22 may be the same as or different from each other, and are each - OR 23 or a halogen atom; and R 23 is H, an alkyl group, or a halogenated alkyl group.
摘要:
An object of the present invention is to provide a lithium cell exhibiting a high remaining capacity after high-temperature storage even if used at high voltages, and an electrolytic solution used for the cell. The present invention relates to an electrolytic solution containing a nonaqueous solvent; an electrolyte salt; and 10 vol% or more of a compound represented by the following formula (1) based on 100 vol% of the nonaqueous solvent,
wherein R 1 , R 2 and R 3 may be the same as or different from one another, each representing a hydrogen atom, a fluorine atom, a C 1 -C 20 alkyl group, or a C 1 -C 20 fluorinated alkyl group, excluding cases where all of R 1 , R 2 , and R 3 are hydrogen atoms or fluorine atoms.
摘要:
Provided are an electrolytic solution and the like that allow an electrochemical device to have low resistance and improved cycle characteristics. The disclosure relates to an electrolytic solution containing: a compound (1) represented by the following formula (1):
wherein R 101 is a C2-C7 organic group and optionally includes at least one selected from the group consisting of a hetero atom and an unsaturated bond; and R 102 is a C1-C3 organic group and optionally includes at least one selected from the group consisting of a hetero atom and an unsaturated bond.
摘要:
Provided are an electrolyte solution and the like that allow an electrochemical device to have low resistance and improved cycle characteristics and can reduce gas generation. The disclosure relates to an electrolyte solution containing: a compound (1) represented by the following formula (1):
wherein R 101 to R 103 are each independently a C1-C5 organic group optionally containing at least one selected from the group consisting of a hetero atom and an unsaturated bond, and R 101 to R 103 form no ring.
摘要:
Provided is an electrode treatment agent for an alkali metal secondary battery that can improve the life of the battery by suppressing precipitation of dendrites. An alkali metal electrode treatment agent comprising an acrylate represented by the following general formula (1) :
wherein X is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a CFX 1 X 2 group (wherein X 1 and X 2 are the same as or different from each other and are each a hydrogen atom, a fluorine atom, or a chlorine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, a substituted or unsubstituted benzyl group, a substituted or unsubstituted phenyl group, or a linear or branched alkyl group having 1 to 20 carbon atoms, Y is a direct bond, a hydrocarbon group having 1 to 10 carbon atoms and optionally having an oxygen atom or a sulfur atom, a - CH 2 CH 2 N(R 1 )SO 2 - group (wherein R 1 is an alkyl group having 1 to 4 carbon atoms), a -CH 2 CH(OY 1 )CH 2 - group (wherein Y 1 is a hydrogen atom or an acetyl group), or a -(CH 2 ) n SO 2 -group (n is 1 to 10), and Rf is a linear or branched fluorinated alkyl group having 2 to 7 carbon atoms, and/or a polymer containing an acrylate represented by the general formula (1) as a part or all of the constituent units.