Patents by Inventor Yasuhiro Tsudo

Yasuhiro Tsudo 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: 20200243867
    Abstract: A resin current collector provides means for improving the cycle characteristics in a lithium ion battery and includes a polyolefin resin, and a conductive carbon filler. The total surface area of the conductive carbon filler contained in 1 g of the resin current collector is 7.0 m2 or more and 10.5 m2 or less.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 30, 2020
    Inventors: Ryosuke Kusano, Yoshihiro Ikeda, Yasuhiro Tsudo, Yasuhiko Ohsawa, Yuki Kusachi, Hajime Satou, Hiroshi Akama, Hideaki Horie
  • Patent number: 10727476
    Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: July 28, 2020
    Assignees: SANYO CHEMICAL INDUSTRIES, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Yusuke Mizuno, Yasuhiro Shindo, Yasuhiro Tsudo, Kenichi Kawakita, Yuki Kusachi, Yasuhiko Ohsawa, Hajime Satou, Hiroshi Akama, Hideaki Horie
  • Patent number: 10658674
    Abstract: An electrode for improving the durability of a battery includes a current collector and an active material layer. The current collector has a conductive resin layer including a polymer material and a conductive filler. The electrode further includes a conductive member, which is in electrical contact with the conductive filler, between the current collector and the active material layer.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 19, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Hajime Satou, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Hiroshi Fukumoto, Masatoshi Okura, Yasuhiro Shindo, Yasuhiro Tsudo
  • Patent number: 10511004
    Abstract: A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, and an electrolyte layer having an electrolyte solution containing a non-aqueous solvent. At least one of the positive electrode active material layer and the negative electrode active material layer contains an electrode material for a non-aqueous electrolyte secondary battery having a core part including an electrode active material and a shell part including a conductive material in a base material formed by a gel-forming polymer having a liquid absorption rate with respect to the electrolyte solution of 10 to 200%.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: December 17, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuki Kusachi, Yasuhiko Ohsawa, Hiroshi Akama, Hideaki Horie, Yuta Murakami, Kenichi Kawakita, Yusuke Mizuno, Yasuhiro Tsudo, Yasuhiro Shindo
  • Publication number: 20190348712
    Abstract: To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 14, 2019
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko OHSAWA, Yuki KUSACHI, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Kenichi KAWAKITA, Yasuhiro Shindo, Yasuhiro TSUDO
  • Patent number: 10431851
    Abstract: To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: October 1, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Yuki Kusachi, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Kenichi Kawakita, Yasuhiro Shindo, Yasuhiro Tsudo
  • Patent number: 10312524
    Abstract: The present invention provides a means for improving the output performance of a battery. An electrical connection structure of the present invention includes a current collector which includes a conductive resin layer containing a polymer material and a conductive filler and a conductive member which is in electrical contact with the conductive filler.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: June 4, 2019
    Assignees: NISSAN MOTOR CO., LTD., SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasuhiko Ohsawa, Hajime Satou, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Hiroshi Fukumoto, Masatoshi Okura, Yasuhiro Shindo, Yasuhiro Tsudo
  • Patent number: 10276858
    Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 30, 2019
    Assignees: SANYO CHEMICAL LTD., NISSAN MOTOR CO., LTD.
    Inventors: Yusuke Mizuno, Yasuhiro Shindo, Yasuhiro Tsudo, Kenichi Kawakita, Yuki Kusachi, Yasuhiko Ohsawa, Hajime Satou, Hiroshi Akama, Hideaki Horie
  • Patent number: 10256473
    Abstract: To provide a means for improving durability of a positive electrode for a lithium battery (in particular, a resin current collector for forming the positive electrode). The means is achieved by a positive electrode for a lithium battery having a resin current collector containing a polyolefin-based resin matrix and a conductive filler, and a positive electrode active material layer provided on the resin current collector, characterized in that an electron conductive layer is disposed on the surface of the resin current collector that is in contact with the positive electrode active material layer.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: April 9, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Hajime Satou, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Hiroshi Fukumoto, Masatoshi Okura, Yasuhiro Shindo, Yasuhiro Tsudo
  • Publication number: 20190020032
    Abstract: An object of the present invention is to provide a resin for coating an active material for lithium ion batteries which can prevent expansion of the electrode without inhibiting conduction of lithium ions. The resin for coating an active material for lithium ion batteries according to the present invention has a liquid absorbing rate of 10% or more when the resin is immersed in an electrolyte solution, and a tensile elongation at break of 10% or more when the resin is saturated with the electrolyte solution.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 17, 2019
    Applicants: SANYO CHEMICAL INDUSTRIES, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Yusuke MIZUNO, Yasuhiro SHINDO, Yasuhiro TSUDO, Kenichi KAWAKITA, Yuta MURAKAMI, Yuki KUSACHI, Yasuhiko OHSAWA, Hiroshi AKAMA, Hideaki HORIE
  • Publication number: 20180301691
    Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 18, 2018
    Inventors: Yusuke MIZUNO, Yasuhiro SHINDO, Yasuhiro TSUDO, Kenichi KAWAKITA, Yuki KUSACHI, Yasuhiko OHSAWA, Hajime SATOU, Hiroshi AKAMA, Hideaki HORIE
  • Publication number: 20180226654
    Abstract: The present invention provides a means for improving the output performance of a battery. An electrical connection structure of the present invention includes a current collector which includes a conductive resin layer containing a polymer material and a conductive filler and a conductive member which is in electrical contact with the conductive filler.
    Type: Application
    Filed: August 21, 2015
    Publication date: August 9, 2018
    Applicants: NISSAN MOTOR CO., LTD.2,, SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasuhiko OHSAWA, Haijime SATOU, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Hiroshi FUKUMOTO, Masatoshi OKURA, Yasuhiro SHINDO, Yasuhiro TSUDO
  • Patent number: 9941511
    Abstract: A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part in which at least a part of a surface of an electrode active material is coated with a first conductive material and a shell part in which a second conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: April 10, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiko Ohsawa, Hideaki Horie, Hiroshi Akama, Yuki Kusachi, Yuta Murakami, Kenichi Kawakita, Yusuke Mizuno, Yasuhiro Tsudo, Yasuhiro Shindo
  • Patent number: 9941512
    Abstract: A core-shell-type electrode material is used as an electrode active material layer of a non-aqueous electrolyte secondary battery, the core-shell-type electrode material having a core part including an electrode active material and a shell part in which a conductive material is contained in a base material formed by a gel-forming polymer having a tensile elongation at break of 10% or more in a gel state.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: April 10, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiko Ohsawa, Hideaki Horie, Hiroshi Akama, Yuki Kusachi, Yuta Murakami, Kenichi Kawakita, Yusuke Mizuno, Yasuhiro Tsudo, Yasuhiro Shindo
  • Publication number: 20180090766
    Abstract: To provide a means for improving durability of a positive electrode for a lithium battery (in particular, a resin current collector for forming the positive electrode). The means is achieved by a positive electrode for a lithium battery having a resin current collector containing a polyolefin-based resin matrix and a conductive filler, and a positive electrode active material layer provided on the resin current collector, characterized in that an electron conductive layer is disposed on the surface of the resin current collector that is in contact with the positive electrode active material layer.
    Type: Application
    Filed: March 25, 2016
    Publication date: March 29, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko OHSAWA, Hajime SATOU, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Hiroshi FUKUMOTO, Masatoshi OKURA, Yasuhiro SHINDO, Yasuhiro TSUDO
  • Publication number: 20180048023
    Abstract: To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.
    Type: Application
    Filed: December 25, 2015
    Publication date: February 15, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko OHSAWA, Yuki KUSACHI, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Kenichi KAWAKITA, Yasuhiro SHINDO, Yasuhiro TSUDO
  • Publication number: 20170279125
    Abstract: The present invention provides a means for improving the durability of a battery. An electrode of the present invention comprises a current collector having a conductive resin layer comprising a polymer material and a conductive filler, and an active material layer, and the electrode further includes a conductive member, which is in electrical contact with the conductive filler, between the current collector and the active material layer.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 28, 2017
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko OHSAWA, Hajime SATOU, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Hiroshi FUKUMOTO, Masatoshi OKURA, Yasuhiro SHINDO, Yasuhiro TSUDO
  • Publication number: 20170279113
    Abstract: The present invention relates to a laminate type battery including: a power generating element formed by electrically laminating in series a plurality of single battery layers in which the single battery layer is formed by sequentially laminating a positive electrode current collector, a positive electrode active material layer, an electrolyte layer, a negative electrode active material layer, and a negative electrode current collector; and an outer casing body inside which the power generating element is disposed, in which at least one of the positive electrode current collector and the negative electrode current collector includes a resin layer having conductivity, and the power generating element further includes a resistance reduction layer adjacent to the resin layer at the outer surface side of the single battery layer including the resin layer.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 28, 2017
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko OHSAWA, Hajime SATOU, Hiroshi AKAMA, Hideaki HORIE, Yusuke MIZUNO, Hiroshi FUKUMOTO, Masatoshi OKURA, Yasuhiro SHINDO, Yasuhiro TSUDO
  • Publication number: 20170033350
    Abstract: The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 ?m. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
    Type: Application
    Filed: December 12, 2014
    Publication date: February 2, 2017
    Applicants: SANYO CHEMICAL INDUSTRIES, LTD., NISSAN MOTOR CO., LTD.
    Inventors: Yusuke MIZUNO, Yasuhiro SHINDO, Yasuhiro TSUDO, Kenichi KAWAKITA, Yuki KUSACHI, Yasuhiko OHSAWA, Hajime SATOU, Hiroshi AKAMA, Hideaki HORIE
  • Patent number: 9550874
    Abstract: Provided are: a powdered material for slush molding; and a manufacturing process therefor. The powdered material is less odorous, exhibits excellent powder fluidity, and does not suffer from troubles resulting from the sliding-down or agglomeration of a pigment even when the resin particles have been pigmented on the surfaces thereof. Thus, the powdered material ensures high productivity. The powdered material is a powdered polyurethane urea resin composition which comprises (D) a polyurethane urea resin that has a total content of bimolecular condensate of acetone, bimolecular condensate of methyl ethyl ketone, and bimolecular condensate of methyl isobutyl ketone of 1,000 ppm or less and (N) an additive, wherein the polyurethane urea resin (D) takes the form of thermoplastic polyurethane urea resin particles (P) that have a volume-mean particle diameter of 20 to 500 ?m and that have protrusions and recesses on the surfaces.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: January 24, 2017
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Koichi Saito, Ko Kawasaki, Kakuhiro Kawaguchi, Yasuhiro Tsudo