Patents by Inventor Shigeaki Yamazaki

Shigeaki Yamazaki 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).

  • Publication number: 20220416302
    Abstract: 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: Application
    Filed: October 19, 2020
    Publication date: December 29, 2022
    Applicants: THE SCHOOL CORPORATION KANSAI UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Masashi ISHIKAWA, Kaihei KISHIDA, Tomoya HIDAKA, Shigeaki YAMAZAKI, Yoshiko KUWAJIMA
  • Patent number: 11489204
    Abstract: An electrolyte solution containing a solvent. The solvent contains a compound (1) represented by the following formula (1), wherein Ra, Rb, Rc, and Rd are the same as or different from each other, and are each —H, —F, —CH3, or —CF3; at least one of Ra, Rb, Rc, or Rd is —F or —CF3; and at least one of Ra, Rb, Rc, or Rd is —CH3, and a compound (2) represented by the following formula (2), wherein Re is a C1-C5 linear or branched alkyl or alkoxy group optionally containing an ether bond; Rf is a C1-C5 linear or branched alkyl group optionally containing an ether bond; and at least one of Re or Rf contains a fluorine atom. 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.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 1, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Shigeaki Yamazaki, Hiroyuki Arima, Kenzou Takahashi
  • Publication number: 20220328879
    Abstract: 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: Application
    Filed: June 5, 2020
    Publication date: October 13, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
  • Publication number: 20220311050
    Abstract: 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: Application
    Filed: June 30, 2020
    Publication date: September 29, 2022
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Shigeaki YAMAZAKI, Yoshiko KUWAJIMA
  • Publication number: 20220282040
    Abstract: An electrode including a fluoropolyether group-containing compound, wherein the fluoropolyether group-containing compound is a fluoropolyether group-containing compound represented by the following formula (1) or (2): RF1?—XARSi???(1) RSi?—XA—RF2—XA—RSi???(2) ; an electrochemical device including the electrode; a module including the electrochemical device; and a lithium ion secondary battery including the electrode.
    Type: Application
    Filed: May 12, 2022
    Publication date: September 8, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshiharu SHIMOOKA, Shigeaki Yamazaki, Takaya Yamada, Kae Fujiwara
  • Publication number: 20220263135
    Abstract: 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: Application
    Filed: June 5, 2020
    Publication date: August 18, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
  • Patent number: 11374259
    Abstract: An electrolyte solution contains tris(trimethylsilyl) phosphite and at least one fluorinated saturated cyclic carbonate (1) selected from pentafluoropropylethylene carbonate and heptafluoroisobutylethylene carbonate. Also disclosed is an electrochemical device including the electrolyte solution.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 28, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya Hidaka, Kenzou Takahashi, Masakazu Kinoshita, Shigeaki Yamazaki
  • Publication number: 20220166024
    Abstract: Provided is a binder for an electrochemical device, which can follow the volume change of an electrode structure due to discharge and charge and can improve a life characteristic of the electrochemical device. A binder for an electrochemical device, which is a binder for a secondary battery containing a polymer having at least one cyclic host group in a molecule, wherein the host group is present as a side chain of the polymer, and a main chain of the polymer penetrates through at least a part of the cyclic host groups.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 26, 2022
    Applicants: OSAKA UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Akira HARADA, Hiroyasu YAMAGUCHI, Yoshinori TAKASHIMA, Kentarou HIRAGA, Shigeaki YAMAZAKI, Fumihiko YAMAGUCHI, Akinari SUGIYAMA
  • Publication number: 20220158248
    Abstract: 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: Application
    Filed: June 5, 2020
    Publication date: May 19, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.,
    Inventors: Tomoya HIDAKA, Yoshiko KUWAJIMA, Shigeaki YAMAZAKI
  • Publication number: 20220149433
    Abstract: 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: Application
    Filed: August 24, 2021
    Publication date: May 12, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Akinori TANI, Yoshiko KUWAJIMA
  • Patent number: 11322780
    Abstract: An electrolyte solution for an electrochemical device, such as a lithium secondary battery, or module. The electrolyte solution contains: a solvent that contains a fluorinated acyclic carbonate having a fluorine content of 33 to 70 mass %; at least one organosilicon compound selected from a compound represented by the formula (1): (R11)n11—M11—O—SiR12R13R14 and a compound represented by the formula (2): R21R22R23—Si—F; a lithium salt (3) that contains an oxalato-complex as an anion; and a lithium salt (4) represented by the formula (4): LizM31FxOy, where R11, M11, R12, R13, R14, R21, R22, R23 and M31 are as defined herein.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: May 3, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hideo Sakata, Kenzou Takahashi, Hiroyuki Arima, Shigeaki Yamazaki, Shinichi Kinoshita
  • Publication number: 20220123318
    Abstract: An electrochemical device which is an alkali metal battery or an alkaline earth metal battery, wherein only a positive electrode is an electrode having a perfluoropolyether group-containing compound in a surface thereof.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiaki HONDA, Shinichi Kinoshita, Shigeaki Yamazaki
  • Publication number: 20220102728
    Abstract: A binder for an electrochemical device made of a polymer material including a first polymer containing a first constituent unit having a guest group in a side chain; and a second polymer containing a second constituent unit having a host group in a side chain. Also disclosed is an electrode mixture containing the binder, an electrode active material and a dispersion medium; an electrode containing the binder, an electrode active material and a current collector; an electrochemical device including the electrode; and a secondary battery including the electrode.
    Type: Application
    Filed: March 4, 2020
    Publication date: March 31, 2022
    Applicants: OSAKA UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Akira HARADA, Hiroyasu YAMAGUCHI, Yoshinori TAKASHIMA, Kentarou HIRAGA, Shigeaki YAMAZAKI, Fumihiko YAMAGUCHI, Akinari SUGIYAMA
  • Publication number: 20220069352
    Abstract: An electrolyte solution for a lithium ion secondary battery, including a compound (1) represented by the following formula (1): wherein R1 and R2 are 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.
    Type: Application
    Filed: June 24, 2021
    Publication date: March 3, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI
  • Patent number: 11258067
    Abstract: The present invention relates to an electrode having a perfluoropolyether group-containing compound in a surface thereof.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 22, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiaki Honda, Shinichi Kinoshita, Shigeaki Yamazaki
  • Publication number: 20210399340
    Abstract: 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: Application
    Filed: January 9, 2019
    Publication date: December 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Yuuki SUZUKI, Kotaro HAYASHI, Hisako NAKAMURA, Takaya YAMADA, Toshiharu SHIMOOKA, Yoshihiro YAMAMOTO, Shigeaki YAMAZAKI, Kenzou TAKAHASHI
  • Publication number: 20210399344
    Abstract: 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: Application
    Filed: August 24, 2021
    Publication date: December 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Akinori TANI, Yoshiko KUWAJIMA
  • Publication number: 20210391597
    Abstract: 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: Application
    Filed: August 24, 2021
    Publication date: December 16, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki Yamazaki, Akinori Tani, Yoshiko Kuwajima
  • Patent number: 11201353
    Abstract: An electrolyte solution applicable to high-voltage electrochemical devices and capable of improving the cycle characteristics of electrochemical devices even at high voltage, and an electrochemical device. The electrolyte solution contains a fluorinated diether and a metal salt having a specific structure. The fluorinated diether is represented by CFR11R12—O—CH2CH2—O—R13, wherein R11 and R12 are each individually H, CH3, F, CH2F, CHF2, or CF3; and R13 is a C1 or C2 non-fluorinated alkyl group or a C1 or C2 fluorinated alkyl group.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 14, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masakazu Kinoshita, Kenzou Takahashi, Hideo Sakata, Shigeaki Yamazaki, Hiroyuki Arima, Shinichi Kinoshita
  • Patent number: 11171360
    Abstract: An electrolyte solution applicable to high-voltage electrochemical devices and capable of improving the cycle characteristics of electrochemical devices even at high voltage, and an electrochemical device. The electrolyte solution contains a fluorinated diether and a metal salt having a specific structure. The fluorinated diether is represented by CFR11R12—O—CH2CH2—O—R13, wherein R11 and R12 are each individually H, CH3, F, CH2F, CHF2, or CF3; and R13 is a C1 or C2 non-fluorinated alkyl group or a C1 or C2 fluorinated alkyl group.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 9, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masakazu Kinoshita, Kenzou Takahashi, Hideo Sakata, Shigeaki Yamazaki, Hiroyuki Arima, Shinichi Kinoshita