Daikin Industries, Ltd.

Kotaro Hayashi

Akiyoshi Yamauchi

Yuuki Suzuki

Shigeaki Yamazaki

Kenzou Takahashi

Yoshiko Kuwajima

Takaya Yamada

Hisako Nakamura

Tomoya Hidaka

Masakazu Kinoshita

Toshiharu Shimooka

Yoshihiro Yamamoto

Yosuke Kishikawa

Hiroyuki Arima

Tatsuya Ohtsuka

Atsushi Maruo

An electrolyte solution containing at least one compound represented by formula (1-1) and formula (1-2), formula (1-1) being: where Ris an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C8 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C6-C12 aryl group, and optionally contains at least one selected from O, Si, S, and N in a structure; and formula (1-2) being: where Rand Rare (i) each individually H, F, an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C7 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C5-C12 aryl group, or (ii) hydrocarbon groups binding to each other to form a 5-membered or 6-membered hetero ring with a nitrogen atom; and Rand Reach optionally contain at least one selected from O, S, and N in a structure.

Electrolyte, electrochemical device, lithium ion secondary battery, and module

An electrolyte solution containing a compound represented by the following formula (1). In the formula, Rand Rare each individually a substituent such as a C1-C7 alkyl group, the substituent optionally contains at least one divalent to hexavalent hetero atom in a structure or optionally has a structure obtained by replacing at least one hydrogen atom by a fluorine atom or a C0-C7 functional group, and at least one selected from the group consisting of Rand Rwhen both being an alkyl group, contains at least one divalent to hexavalent hetero atom in the structure or has a structure obtained by replacing at least one hydrogen atom by a fluorine atom or a C0-C7 functional group:

Electrolyte solution, electrochemical device, lithium ion secondary battery, module and compound

An electrolyte solution containing LiFSOand a compound (1) represented by the following formula (1): LiZ, wherein Z is PF, BF, N(FSO), N(CFSO), N(CFSO), POF, or B(CO). The electrolyte solution has a ratio [FSO]/[Z] of a molar content of FSO[FSO] to a molar content of Z [Z] of 3 to 1000. Also disclosed is an electrochemical device including the electrolyte solution, a lithium ion secondary battery including the electrolyte solution and a module including the electrochemical device.

An electrolyte solution containing a compound represented by formula (1) and a compound represented, for example, by formula (11-1), the formula (1) being: wherein Mis P or P═O; Ris a group such as a C1-C11 alkylsilyloxy group; n101 is an oxidation number of Mminus 1 or an oxidation number of Mminus 3; and Rto Rare each individually a group such as a C1-C11 alkyl group; the formula (11-1) being: wherein Rand Rare the same as or different from each other and are each an atom or group such as a hydrogen atom; and Ris a group such as an alkyl group free from a fluorine atom.

Electrolyte, electrochemical device, lithium-ion secondary battery, and module

An electrolyte solution containing a compound represented by the following formula (1). In the formula, Rfis CF—, CFH—, or CFH—, and Ris an optionally fluorinated C2-C5 alkenyl group or an optionally fluorinated C2-C8 alkynyl group and optionally contains Si in a structure:

An electrolyte solution containing a compound (1) represented by the formula (1), (wherein Rand Rare each individually a substituent such as a C1-C7 alkyl group, and the substituent optionally contains at least one divalent to hexavalent hetero atom in a structure or optionally has a structure obtained by replacing at least one hydrogen atom by a fluorine atom or a C0-C7 functional group) and at least one compound (11) selected from compounds such as a compound represented by formula (11-1) (wherein Rand Rare the same as or different from each other and are each a hydrogen atom or the like, and Ris an alkyl group free from a fluorine atom or the like):

Electrolyte solution, electrochemical device, lithium ion secondary battery, and module

A method for producing a cyclic carbonate represented by the following formula (1): wherein Xand Xare the same as or different from each other, and are each a hydrogen atom, a fluorine atom, or a monovalent organic group; and R is an organic group containing one or more carbon-carbon unsaturated bonds. The method includes reacting an unsaturated cyclic carbonate represented by the following formula (A): wherein Xand Xare defined as described above, and an alcohol represented by the formula (B): R&#x2014;OH, wherein R is defined as described above, or an alkoxide thereof in the presence of a base, or reacting the unsaturated cyclic carbonate and the alkoxide. Also disclosed is a method for producing a cyclic carbonate.

Method for producing cyclic carbonate having unsaturated group, and novel cyclic carbonate

An electrolyte solution containing a compound represented by the following formula (1): wherein Rand Rare the same as or different from each other and are each a hydrogen atom, a fluorine atom, or an alkyl group optionally containing a fluorine atom; and Ris an alkyl group or an organic group containing an unsaturated carbon-carbon bond. Also disclosed is an electrochemical device and lithium ion secondary battery including the electrolyte solution, and a module including the electrochemical device or lithium ion secondary battery.

Electrolytic solution, electrochemical device, lithium ion secondary battery, and module

An electrolyte solution for a lithium ion secondary battery, containing a compound (1) represented by the following formula (1): wherein Rand Rare each independently a C1-C4 alkyl group optionally containing an ether bond, and wherein chloride ion is present at a concentration of 1.0&#xd7;10to 1.0&#xd7;10ppm. Also disclosed is an electrolyte solution for a lithium ion secondary battery, containing an imidazolium cation (1-1) represented by the following formula (1-1), a bis(oxalato)borate anion, and a hexafluorophosphate anion, the formula (1-1) being: wherein Rand Rare each independently a C1-C4 alkyl group optionally containing an ether bond, and wherein chloride ion is present at a concentration of 1.0&#xd7;10to 1.0&#xd7;10ppm.

Electrolyte for lithium ion secondary battery, lithium ion secondary battery, and module

An electrolyte solution containing at least one selected from a compound represented by the following formula (1-1) (wherein Rfs are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group), a compound represented by the following formula (1-2) (wherein Ris a C1-C4 alkyl group; and Rfis a C2-C4 fluorinated alkenyl group), and a compound represented by the following formula (1-3) (wherein Rfis a C1-C3 fluorinated alkyl group; and Ris a C6-C12 aryl group): 

Electrolytic solution, electrochemical device, lithium-ion secondary cell, and module

A method for producing lithium fluorosulfonate which includes reacting XSOH, wherein X is a leaving group other than fluorine, with a lithium source and a fluorine source. Also disclosed is a composition containing XSOH.

Growing community of inventors

Osaka, Japan

Kotaro Hayashi