Daikin Industries, Ltd.

Toyota Jidosha Kabushiki Kaisha

Panasonic Electric Works Co., Ltd.

The School Corporation Kansai University

Shigeaki Yamazaki

Kenzou Takahashi

Yoshiko Kuwajima

Shinichi Kinoshita

Tomoya Hidaka

Masakazu Kinoshita

Hiroyuki Arima

Yuuki Suzuki

Takaya Yamada

Akiyoshi Yamauchi

Hideo Sakata

Kotaro Hayashi

Hisako Nakamura

Toshiharu Shimooka

Hiroto Asano

Yoshiaki Honda

Toshiyuki Kawai

Mayuko Taeda

Yoshihiro Yamamoto

Akinori Tani

Atsushi Maruo

Tomo Shimada

Toshirou Miura

Satoshi Uchida

Meiten Koh

Hisashi Mitsuhashi

Tatsuya Ohtsuka

Hiroyuki Sako

Aoi Nakazono

Michiru Kagawa

Yoshimi Motonari

Masashi Ishikawa

Shimpei Kondo

Masaki Yamagata

Shinpei Kondo

Akira Koyama

Yuya Torii

An electrolytic solution, a lithium-sulfur secondary battery including the electrolytic solution and a module. The lithium-sulfur secondary battery has a positive electrode or a negative electrode containing a sulfur-containing electrode active material containing at least one selected from simple sulfur, lithium polysulfides (LiS: 1≤n≤8) and organosulfur compounds. The electrolytic solution contains: a fluorinated ether represented by: Rf—(OR)—O—R; an ether compound represented by: R—(OCHRCH)—OR; and an alkali metal salt, wherein Rf, R, R, R, R, R, n and x are as defined herein.

Electrolytic solution, lithium-sulfur secondary battery, and module

An electrolyte solution capable of reducing the initial resistance of an electrochemical device, and an electrochemical device including the electrolyte solution. The electrolyte solution contains a compound represented by formula (1-1): wherein Rto Rare each individually a C1-C4 linear alkyl group, and wherein the compound (1-1) is present in an amount of 0.01-1000 mass ppm relative to the electrolyte solution.

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

An alkali metal electrode treatment agent including an acrylate represented by the following general formula (1): wherein X, Y and Rf are as defined herein and/or a polymer containing an acrylate represented by the general formula (1) as a part or all of its constituent units. Also disclosed is an electrolytic solution for an alkali metal secondary battery and an alkali metal electrode including the acrylate represented by the general formula (1), an alkali metal secondary battery including the alkali metal electrode, and a module including the alkali metal secondary battery.

Alkali metal electrode treatment agent, electrolytic solution for alkali metal secondary battery, alkali metal electrode, alkali metal secondary battery, and module

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 electrode having a coating layer formed from a composition including a perfluoropolyether group-containing compound represented by the formula (A1), (A2), (B1), (B2), (C1), (C2), (D1), (D2), (E1) or (E2) as defined herein, wherein in the composition, compounds represented by formulae (A2), (B2), (C2), (D2) and (E2) are 0.1 mol % or more and 35 mol % or less based on the total amount of compounds represented by formulae (A1), (B1), (C1), (D1) and (E1) and compounds represented by formulae (A2), (B2), (C2), (D2) and (E2). Also disclosed is an electrochemical device including the electrode.

Electrode and electrochemical device

An electrolyte solution containing a compound (1) represented by the formula (1): wherein Rand Rare each independently a C1-C4 alkyl group optionally containing an ether bond; and a compound (11) represented by the formula (11): wherein Rand Rare 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. Also disclosed is an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution, and a module including the electrochemical device or the lithium ion secondary battery.

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

An electrolyte solution containing lithium ethyl sulfate and ethyl sulfate. The lithium ethyl sulfate is present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution. The lithium ethyl sulfate and the ethyl sulfate give a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. Also disclosed is an electrochemical device and lithium ion secondary battery containing the electrolyte solution, a module including the electrochemical device and a method for producing lithium ethyl sulfate.

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

An electrolyte solution containing at least one compound (1) selected from a compound represented by the following formula (1-1) and a compound represented by the following formula (1-2), the formula (1-1) being: wherein Rto Rare each individually a C1-C4 linear alkyl group, the formula (1-2) being: wherein Rto Rare each individually a C1-C4 linear alkyl group.

A compound represented by the following formula (1): wherein Rto R, each independently, are a C1-C6 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and are optionally linear, branched, or cyclic. Also disclosed is an electrolyte solution containing the compound, an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution and a module including the electrochemical device or the lithium ion secondary battery.

Compound, electrolytic solution additive, electrolytic solution, 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 for a lithium ion secondary battery, including a compound (1) represented by the following formula (1): wherein Rand Rare each independently a methyl, ethyl, propyl, or butyl group. Also disclosed is a lithium ion secondary battery including the electrolyte solution and a module including the lithium ion secondary battery.

Electrolytic solution for lithium-ion secondary battery, lithium-ion secondary battery, and module

An electrolyte solution containing at least one compound (1) selected from the group consisting of a compound represented by the following formula (1-1) (wherein Rto Rare each individually a C1-C4 linear or branched alkyl group, and at least one selected from Rto Ris a C1-C4 branched alkyl group) and a compound represented by the following formula (1-2) (wherein Rto Rare each individually a C1-C4 linear or branched alkyl group, and at least one selected from Rto Ris a C1-C4 branched alkyl group). 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 or lithium ion secondary battery:

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:

Growing community of inventors

Osaka, Japan

Shigeaki Yamazaki