Patents by Inventor Yoshiko Kuwajima
Yoshiko Kuwajima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220416302Abstract: 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 (Li2Sn: 1<n<8) and organosulfur compounds, and a negative electrode containing a material that occludes and releases lithium ions, the electrolytic solution containing a nonaqueous electrolyte and a solvent, wherein the solvent contains vinylene carbonate in a proportion of 10 to 100% by weight.Type: ApplicationFiled: October 19, 2020Publication date: December 29, 2022Applicants: THE SCHOOL CORPORATION KANSAI UNIVERSITY, DAIKIN INDUSTRIES, LTD.Inventors: Masashi ISHIKAWA, Kaihei KISHIDA, Tomoya HIDAKA, Shigeaki YAMAZAKI, Yoshiko KUWAJIMA
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Publication number: 20220328879Abstract: An electrolytic solution for an alkali metal ion secondary battery, an alkali metal ion secondary battery including the electrolytic solution and a module including the alkali metal ion secondary battery. The alkali metal ion secondary battery includes a positive electrode and a negative electrode. The positive electrode includes at least one selected from an alkali metal-containing transition metal composite oxide and an alkali metal-containing transition metal phosphate compound. The negative electrode includes at least one selected from a tin-based material and an alkali metal-containing metal composite oxide material.Type: ApplicationFiled: June 5, 2020Publication date: October 13, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
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Publication number: 20220311050Abstract: 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.Type: ApplicationFiled: June 30, 2020Publication date: September 29, 2022Applicant: DAIKIN INDUSTRIES, LTDInventors: Shigeaki YAMAZAKI, Yoshiko KUWAJIMA
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Publication number: 20220263135Abstract: An electrolytic solution for a secondary battery, a secondary battery containing the electrolytic solution, and a module including the same. The secondary battery includes comprising a positive electrode and a negative electrode containing an alkali metal. The positive electrode includes at least one compound selected from an alkali metal-containing transition metal composite oxide and an alkali metal-containing transition metal phosphate compound.Type: ApplicationFiled: June 5, 2020Publication date: August 18, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
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Publication number: 20220158248Abstract: 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 (Li2Sn: 1?n?8) and organosulfur compounds. The electrolytic solution contains: a fluorinated ether represented by: Rf—(OR1)n—O—R2; an ether compound represented by: R4—(OCHR3CH2)x—OR5; and an alkali metal salt, wherein Rf, R1, R2, R3, R4, R5, n and x are as defined herein.Type: ApplicationFiled: June 5, 2020Publication date: May 19, 2022Applicant: DAIKIN INDUSTRIES, LTD.,Inventors: Tomoya HIDAKA, Yoshiko KUWAJIMA, Shigeaki YAMAZAKI
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Publication number: 20220149433Abstract: A compound represented by the following formula (1): wherein R101 to R103, 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.Type: ApplicationFiled: August 24, 2021Publication date: May 12, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Akinori TANI, Yoshiko KUWAJIMA
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Publication number: 20210399344Abstract: An electrolyte solution for a lithium ion secondary battery containing at least one compound (1) selected from compounds represented by formulas (1A) and (1B): wherein R101 and R102, each independently, are a C5-C10 organic group, optionally contain at least one selected from a hetero atom and an unsaturated bond, and optionally contain a ring, wherein R103 to R105, each independently, are a C1-C10 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and optionally contain a ring.Type: ApplicationFiled: August 24, 2021Publication date: December 23, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Akinori TANI, Yoshiko KUWAJIMA
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Publication number: 20210399340Abstract: An electrolyte solution containing at least one compound represented by formula (1-1) and formula (1-2), formula (1-1) being: where R101 is 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 R102 and R103 are (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 R102 and R103 each optionally contain at least one selected from O, S, and N in a structure.Type: ApplicationFiled: January 9, 2019Publication date: December 23, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Yuuki SUZUKI, Kotaro HAYASHI, Hisako NAKAMURA, Takaya YAMADA, Toshiharu SHIMOOKA, Yoshihiro YAMAMOTO, Shigeaki YAMAZAKI, Kenzou TAKAHASHI
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Publication number: 20210391597Abstract: An electrolyte solution containing a compound (1) represented by the formula (1): wherein R1 and R2 are each independently a C1-C4 alkyl group optionally containing an ether bond; and a compound (11) represented by the formula (11): wherein R101 and R102 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. 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.Type: ApplicationFiled: August 24, 2021Publication date: December 16, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoya HIDAKA, Shigeaki Yamazaki, Akinori Tani, Yoshiko Kuwajima
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Publication number: 20210384556Abstract: The disclosure provides an electrolyte solution capable of improving the output characteristics of an electrochemical device at initial stage and after high-temperature storage. The electrolyte solution contains a compound represented by the following formula (1). In the formula (1), R101s are each individually an optionally fluorinated organic group; X101s are each individually a halogen atom, —Rc101, or —ORc101, wherein Rc101 is an alkyl group or an aryl group; p1 is an integer of 1 to 4; and q1 is an integer satisfying p1+q1=4.Type: ApplicationFiled: March 11, 2019Publication date: December 9, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Yuuki SUZUKI, Masakazu KINOSHITA, Kotaro HAYASHI, Tomoya HIDAKA, Kenzou TAKAHASHI
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Publication number: 20210265664Abstract: 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 M101 is P or P?O; R101 is a group such as a C1-C11 alkylsilyloxy group; n101 is an oxidation number of M101 minus 1 or an oxidation number of M101 minus 3; and R102 to R104 are each individually a group such as a C1-C11 alkyl group; the formula (11-1) being: wherein R111 and R112 are the same as or different from each other and are each an atom or group such as a hydrogen atom; and R113 is a group such as an alkyl group free from a fluorine atom.Type: ApplicationFiled: March 18, 2019Publication date: August 26, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Masakazu KINOSHITA, Yuuki SUZUKI, Toshiharu SHIMOOKA, Hisako NAKAMURA, Takaya YAMADA, Shigeaki YAMAZAKI, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Yoshihiro YAMAMOTO, Kenzou TAKAHASHI
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Publication number: 20210246098Abstract: An electrolyte solution containing a compound represented by the following formula (1).Type: ApplicationFiled: January 9, 2019Publication date: August 12, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Hisako NAKAMURA, Toshiharu SHIMOOKA, Takaya YAMADA, Yoshihiro YAMAMOTO, Shigeaki YAMAZAKI, Kenzou TAKAHASHI
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Publication number: 20210249700Abstract: A coated particle including a sulfide-based particle and a fluorine-containing polymer that coats a surface of the sulfide-based particle. The fluorine-containing polymer includes a structural unit (1) based on a monomer (1) represented by the following formula (1) and a structural unit (2) based on at least one selected from the group consisting of, for example, a monomer (2) represented by the following formula (2): wherein, for example, X is a hydrogen atom; Y is a direct bond; and Rf is a C1-C10 linear or branched fluoroalkyl group, wherein, for example, R1 is a hydrogen atom; and R2 is a hydrocarbon group. Also disclosed are positive and negative electrodes including the coated particle, an all-solid-state battery including the positive and negative electrodes and a coating composition for a sulfide-based all-solid-state battery.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko KUWAJIMA, Toshiharu SHIMOOKA, Akinori TANI, Kae FUJIWARA, Masamichi MORITA
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Publication number: 20210234201Abstract: 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 R111 to R113 are each individually a C1-C4 linear alkyl group, the formula (1-2) being: wherein R121 to R123 are each individually a C1-C4 linear alkyl group.Type: ApplicationFiled: April 12, 2019Publication date: July 29, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoya HIDAKA, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Takaya YAMADA, Shigeaki YAMAZAKI, Yuuki SUZUKI, Kenzou TAKAHASHI
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Publication number: 20210198453Abstract: A composition including an inorganic filler; a copolymer of a fluoromonomer and an amide bond-containing polymerizable vinyl compound; and a solvent. Also disclosed is a laminate including a substrate and a film on the substrate obtained from the composition and a dispersant including a copolymer of a fluoromonomer and an amide bond-containing polymerizable vinyl compound.Type: ApplicationFiled: July 16, 2019Publication date: July 1, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuuki SUZUKI, Toshiharu SHIMOOKA, Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
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Publication number: 20210194057Abstract: 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.Type: ApplicationFiled: September 13, 2018Publication date: June 24, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Shigeaki YAMAZAKI, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Kenzou TAKAHASHI
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Publication number: 20210119256Abstract: 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 R111 to R113 are each individually a C1-C4 linear or branched alkyl group, and at least one selected from R111 to R113 is a C1-C4 branched alkyl group) and a compound represented by the following formula (1-2) (wherein R121 to R123 are each individually a C1-C4 linear or branched alkyl group, and at least one selected from R121 to R123 is a C1-C4 branched alkyl group).Type: ApplicationFiled: April 11, 2019Publication date: April 22, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoya HIDAKA, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Takaya YAMADA, Shigeaki YAMAZAKI, Kenzou TAKAHASHI, Yuuki SUZUKI
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Publication number: 20210087059Abstract: A method for producing a lithium sulfamate which includes (1) reacting a compound (1) represented by the following formula (1): wherein X is fluorine, chlorine, bromine, or iodine, with a compound (2) represented by the following formula (2): wherein R1 and R2 are each individually —H or a substituent as defined herein, the substituent optionally containing at least one bi- to hexavalent heteroatom in the structure and being a substituent in which at least one hydrogen atom is optionally replaced with a fluorine atom or a C0-C7 functional group, to obtain a compound (3) represented by the following formula (3): wherein R1 and R2 are defined as above.Type: ApplicationFiled: March 11, 2019Publication date: March 25, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuuki SUZUKI, Akiyoshi YAMAUCHI, Tomoya HIDAKA, Kotaro HAYASHI, Yoshiko KUWAJIMA, Yoshihiro YAMAMOTO, Yosuke KISHIKAWA
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Publication number: 20210043974Abstract: An electrolyte solution containing a compound (1) represented by the formula (1), (wherein R101 and R102 are 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 R111 and R112 are the same as or different from each other and are each a hydrogen atom or the like, and R113 is an alkyl group free from a fluorine atom or the like):Type: ApplicationFiled: March 11, 2019Publication date: February 11, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masakazu KINOSHITA, Tomoya HIDAKA, Toshiharu SHIMOOKA, Shigeaki YAMAZAKI, Hisako NAKAMURA, Takaya YAMADA, Yuuki SUZUKI, Yoshiko KUWAJIMA, Kenzou TAKAHASHI, Akiyoshi YAMAUCHI, Kotaro HAYASHI
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Publication number: 20210028492Abstract: An electrolyte solution containing a compound represented by the following formula (1).Type: ApplicationFiled: March 11, 2019Publication date: January 28, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masakazu KINOSHITA, Tomoya HIDAKA, Yoshiko KUWAJIMA, Yuuki SUZUKI, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Shigeaki YAMAZAKI, Kenzou TAKAHASHI, Takaya YAMADA