Patents by Inventor Yuki CHUJO

Yuki CHUJO 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).

  • Patent number: 11811015
    Abstract: Provided is an electricity-storage module including: a stacked body that includes electrodes which are stacked along a first direction; a sealing body that is provided to the stacked body so as to surround a peripheral edge portion of the electrodes, forms an inner space that stores an electrolytic solution between the electrodes adjacent to each other along the first direction, and seals the inner space; and a reinforcing body that is provided in the electrodes so as to suppress deformation of the electrodes. The electrodes include bipolar electrodes and a negative terminal electrode, the negative terminal electrode includes the electrode plate and a negative electrode provided on the second surface, and is disposed at one end of the stacked body in the first direction such that the second surface faces an inner side of the stacked body in the first direction.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 7, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Chujo, Takayuki Hirose, Tomohiro Nakamura, Masahiro Yamada
  • Patent number: 11699557
    Abstract: An electricity-storage module includes an electrode stacked body and a sealing body. A negative terminal electrode is disposed at one end of the electrode stacked body in a stacking direction such that a second surface is an inner side of the electrode stacked body. The sealing body includes first resin portions 21 which are joined to edge portions, and a second resin portion that is joined to the first resin portions 21 so as to surround the first resin portions from an outer side.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 11, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomohiro Nakamura, Yuki Chujo, Masahiro Yamada, Takayuki Hirose
  • Patent number: 11695181
    Abstract: A power storage module including: a stacked body that includes electrodes stacked along a first direction; a sealing body that includes a first sealing portion joined to an edge portion of each of the electrodes, forms an inner space between the electrodes adjacent to each other, and seals the inner space; and an electrolytic solution that is stored in the inner space and includes an alkali solution. The electrodes include bipolar electrodes, and a negative terminal electrode. The power storage module includes surplus spaces different from the inner space on a route of an alkali creep phenomenon in which the electrolytic solution reaches the outside from the inner space through the negative terminal electrode.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: July 4, 2023
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Nakamura, Yuki Chujo, Masahiro Yamada, Takayuki Hirose, Nobuyasu Haga, Motoyoshi Okumura, Takuro Kikuchi
  • Patent number: 11361910
    Abstract: A power storage module includes an electrode laminate in which bipolar electrodes are laminated and a sealing body formed of a resin. The bipolar electrode includes an electrode plate, a positive electrode provided on one surface of the electrode plate, and a negative electrode provided on another surface of the electrode plate. The sealing body is provided on a side surface of the electrode laminate to surround an edge portion of the bipolar electrode. The sealing body includes a first resin portion and a second resin portion. The first resin portion is welded to the edge portion of the bipolar electrode. The second resin portion surrounds the first resin portion from an outer side along the side surface. A mold shrinkage factor of the first resin portion is lower than a mold shrinkage factor of the second resin portion.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: June 14, 2022
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Nakamura, Yuki Chujo, Masahiro Yamada, Takayuki Hirose, Nobuyasu Haga, Motoyoshi Okumura
  • Publication number: 20210020876
    Abstract: A power storage module including: a stacked body that includes electrodes stacked along a first direction; a sealing body that includes a first sealing portion joined to an edge portion of each of the electrodes, forms an inner space between the electrodes adjacent to each other, and seals the inner space; and an electrolytic solution that is stored in the inner space and includes an alkali solution. The electrodes include bipolar electrodes, and a negative terminal electrode. The power storage module includes surplus spaces different from the inner space on a route of an alkali creep phenomenon in which the electrolytic solution reaches the outside from the inner space through the negative terminal electrode.
    Type: Application
    Filed: April 4, 2019
    Publication date: January 21, 2021
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro NAKAMURA, Yuki CHUJO, Masahiro YAMADA, Takayuki HIROSE, Nobuyasu HAGA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200411809
    Abstract: A power storage device includes a power storage module and a pair of conductive plates configured to sandwich the power storage module. The power storage module has an electrode laminate and a sealing body configured to seal the electrode laminate. The electrode laminate includes a plurality of laminated bipolar electrodes and a pair of terminal electrodes. The pair of terminal electrodes is disposed at laminate ends of the electrode laminate and each includes an electrode plate. The sealing body has a pair of resin portions provided at the edge portions of the terminal electrodes. At least one conductive plate of the pair of conductive plates is disposed to oppose the terminal electrode in the laminating direction of the electrode laminate and to overlap a corresponding resin portion of the pair of resin portions when seen in the laminating direction.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 31, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki CHUJO, Takayuki HIROSE, Tomohiro NAKAMURA, Masahiro YAMADA, Nobuyasu HAGA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200373607
    Abstract: Provided is an electricity-storage module including: a stacked body that includes electrodes which are stacked along a first direction; a sealing body that is provided to the stacked body so as to surround a peripheral edge portion of the electrodes, forms an inner space that stores an electrolytic solution between the electrodes adjacent to each other along the first direction, and seals the inner space; and a reinforcing body that is provided in the electrodes so as to suppress deformation of the electrodes. The electrodes include bipolar electrodes and a negative terminal electrode, the negative terminal electrode includes the electrode plate and a negative electrode provided on the second surface, and is disposed at one end of the stacked body in the first direction such that the second surface faces an inner side of the stacked body in the first direction.
    Type: Application
    Filed: September 18, 2018
    Publication date: November 26, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki CHUJO, Takayuki HIROSE, Tomohiro NAKAMURA, Masahiro YAMADA
  • Publication number: 20200350525
    Abstract: A power storage module includes an electrode laminate in which bipolar electrodes are laminated and a sealing body formed of a resin. The bipolar electrode includes an electrode plate, a positive electrode provided on one surface of the electrode plate, and a negative electrode provided on another surface of the electrode plate. The sealing body is provided on a side surface of the electrode laminate to surround an edge portion of the bipolar electrode. The sealing body includes a first resin portion and a second resin portion. The first resin portion is welded to the edge portion of the bipolar electrode. The second resin portion surrounds the first resin portion from an outer side along the side surface. A mold shrinkage factor of the first resin portion is lower than a mold shrinkage factor of the second resin portion.
    Type: Application
    Filed: September 3, 2018
    Publication date: November 5, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro NAKAMURA, Yuki CHUJO, Masahiro YAMADA, Takayuki HIROSE, Nobuyasu HAGA, Motoyoshi OKUMURA
  • Publication number: 20200280029
    Abstract: Please add the following new Abstract of the Disclosure: An electricity-storage module includes an electrode stacked body and a sealing body. A negative terminal electrode is disposed at one end of the electrode stacked body in a stacking direction such that a second surface is an inner side of the electrode stacked body. The sealing body includes first resin portions 21 which are joined to edge portions, and a second resin portion that is joined to the first resin portions 21 so as to surround the first resin portions from an outer side.
    Type: Application
    Filed: September 25, 2018
    Publication date: September 3, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomohiro NAKAMURA, Yuki CHUJO, Masahiro YAMADA, Takayuki HIROSE
  • Patent number: 10403870
    Abstract: A battery module is provided and includes an array body in which a plurality of battery cells are arrayed, an elastic member disposed on at least one side in an array direction of the array body, a pair of end plates holding the array body and the elastic member therebetween, a resin middle plate disposed between the array body and the elastic member, and a metal joining member joining the pair of the end plates each other, in which the middle plate is provided with a through hole through which the joining member is inserted, and a metal collar is inserted through the through hole.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: September 3, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Chujo, Takayuki Kato, Hiromi Ueda, Naoto Morisaku, Masahiro Yamada
  • Patent number: 10319968
    Abstract: A battery pack has a sealed case. Battery modules are housed in the sealed case. Each battery module contains multiple battery cells. The sealed case has a main body having an opening. The opening in the main body is closed by a rectangular plate-shaped lid member. The lid member has a first releasing portion and a second releasing portion, which are opened when the internal pressure of the sealed case increases. The second releasing portion is arranged below the first releasing portion in the vertical direction.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 11, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Chujo, Takayuki Kato, Hiromi Ueda, Fumihiko Ishiguro
  • Patent number: 10062929
    Abstract: A vehicle body includes an accommodating portion that accommodates a battery pack. A communication hole, which connects the outside and the inside the accommodating portion, is formed in one of the side walls of the vehicle body. The battery pack includes battery cells and a sealed case that accommodates the battery cells. The sealed case includes a case main body having an opening and a lid member fixed to the case main body. The lid member has a first releasing portion and a second releasing portion. A connecting portion for connecting a charging plug to the battery pack is inserted in the communication hole. The connecting portion is connected to the battery cells via wires. The first releasing portion and the second releasing portion are arranged to face a wall of an accommodating body.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 28, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Chujo, Takayuki Kato, Hiromi Ueda, Fumihiko Ishiguro, Naoto Morisaku
  • Patent number: 10003050
    Abstract: A battery module includes a battery cell, a heat transfer plate, and a holder. The heat transfer plate is arranged side by side with the battery cell and has an edge and is thermally coupled to the battery cell. The holder holds the battery cell and that has a cutout section to which the heat transfer plate is fitted. The edge of the heat-transmitting plate has a first engagement section that is at least one of a first recess and a first protrusion. The holder has a second engagement section that is at least one of a second protrusion, which is fitted to the first recess and a second protrusions, which is fitted to the first protrusion.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: June 19, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Naoto Morisaku, Takayuki Kato, Shintaro Watanabe, Hidefumi Oishi, Takashi Sakai, Yuki Chujo, Hiromi Ueda, Kazuki Maeda
  • Patent number: 9954209
    Abstract: This battery pack is provided with a housing, a case, a battery cell, a sealing material and a spacer. The case includes a lid member fixed to the housing so as to close a through-hole in the housing. The lid member is bolted to a through-hole peripheral part of the housing. When the internal pressure of the case rises, part of the lid member deforms in a direction away from the through-hole peripheral part, releasing the internal pressure of the case. The battery cell is accommodated inside of the case. The sealing material is arranged between the lid member and the through-hole peripheral part so as to ensure the air-tightness of the case. The spacer is arranged between the lid member and the through-hole peripheral part so as to maintain the interval between the lid member and the through-hole peripheral part.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 24, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki Chujo, Takayuki Kato, Hiromi Ueda, Fumihiko Ishiguro
  • Patent number: 9917338
    Abstract: A battery pack includes a battery module including a plurality of cells, a housing that accommodates the battery module and is thermally coupled to the battery module, and a temperature adjuster that is thermally coupled and attached to the housing. The temperature adjuster changes a temperature of the housing.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: March 13, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Hidefumi Oishi, Takayuki Kato, Hirohisa Kato, Hiromi Ueda, Fumihiko Ishiguro, Naoto Morisaku, Kazuki Maeda, Takashi Sakai, Shintaro Watanabe, Atsushi Yamaguchi, Yuki Chujo
  • Publication number: 20180069219
    Abstract: A battery module is provided and includes an array body in which a plurality of battery cells are arrayed, an elastic member disposed on at least one side in an array direction of the array body, a pair of end plates holding the array body and the elastic member therebetween, a resin middle plate disposed between the array body and the elastic member, and a metal joining member joining the pair of the end plates each other, in which the middle plate is provided with a through hole through which the joining member is inserted, and a metal collar is inserted through the through hole.
    Type: Application
    Filed: October 14, 2015
    Publication date: March 8, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki CHUJO, Takayuki KATO, Hiromi UEDA, Naoto MORISAKU, Masahiro YAMADA
  • Patent number: 9812682
    Abstract: A battery pack includes a battery module including a plurality of rechargeable batteries, an electronic component that contributes to charging and discharging of the rechargeable batteries, and an installation body including an extending portion, which extends vertically. The installation body includes a placing portion, which projects from the extending portion in a direction crossing the vertical direction. At least one of the battery module and the electronic component is installed in the extending portion while being placed on the placing portion.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 7, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kazuki Maeda, Takayuki Kato, Shintaro Watanabe, Hidefumi Oishi, Takashi Sakai, Yuki Chujo, Hiromi Ueda, Naoto Morisaku, Atsushi Yamaguchi
  • Patent number: 9806308
    Abstract: A battery module is provided and includes a plurality of rechargeable batteries and a battery cover, wherein the rechargeable batteries are disposed adjacent to each other, each of the rechargeable batteries has a battery case having a wall portion equipped with an open valve that is constructed so as to open when the inner pressure of the battery case rises up to a threshold value, and the battery cover faces the wall portion. The battery cover has a plurality of cover members provided side by side in a direction toward which the rechargeable batteries are disposed adjacent to each other. The cover members include at least adjacent first and second cover members. The first cover member has a first edge portion and the second cover member has a second edge portion overlapped with the first edge portion.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 31, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shintaro Watanabe, Hidefumi Oishi, Takashi Sakai, Yuki Chujo, Hiromi Ueda, Naoto Morisaku, Kazuki Maeda, Takayuki Kato, Tomonori Sasaki
  • Patent number: 9564668
    Abstract: A battery module joined to a joint body. Each heat transfer plate of the battery module has a sandwiched portion provided between adjacent battery cells and a joined portion. A first heat conductive layer that contacts a battery cell and has a first thickness is provided on the sandwiched portion of each heat transfer plate. A second heat conductive layer is provided on the facing surface of each heat transfer plate other than the heat transfer plate that is the closest to the joint body when the joined portion is joined to the joint body. The second heat conductive layer is configured to contact the joint body. The second heat conductive layer on the heat transfer plate that is the farthest from the joint body when the joined portion is joined to the joint body has a second thickness, which is greater than the first thickness.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: February 7, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Naoto Morisaku, Takayuki Kato, Shintaro Watanabe, Hidefumi Oishi, Takashi Sakai, Yuki Chujo, Hiromi Ueda, Kazuki Maeda, Hirohisa Kato, Tomonori Sasaki, Atsushi Yamaguchi
  • Publication number: 20170033341
    Abstract: A battery pack has a sealed case. Battery modules are housed in the sealed case. Each battery module contains multiple battery cells. The sealed case has a main body having an opening. The opening in the main body is closed by a rectangular plate-shaped lid member. The lid member has a first releasing portion and a second releasing portion, which are opened when the internal pressure of the sealed case increases. The second releasing portion is arranged below the first releasing portion in the vertical direction.
    Type: Application
    Filed: December 11, 2014
    Publication date: February 2, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yuki CHUJO, Takayuki KATO, Hiromi UEDA, Fumihiko ISHIGURO