Patents by Inventor Shigemitsu Akutsu

Shigemitsu Akutsu 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: 20230318153
    Abstract: A solid-state battery includes stacked electrode body, and exterior film that accommodates stacked electrode body, stacked electrode body has first stacked electrode body stacked such that both stacked end outermost surfaces become negative electrode current collector layer, and second stacked electrode body stacked such that both stacked end outermost surfaces become positive electrode current collector layer, first negative electrode bundled body of negative electrode current collector layer and first positive electrode bundled body of positive electrode current collector layer are connected in series, exterior film has inner resin layer, metal layer, and outer resin layer, and first internal connecting portion that electrically connects first negative electrode bundled body and first positive electrode bundled body to metal layer is provided at one end portion of stacked electrode body in width direction to which first negative electrode bundled body and first positive electrode bundled body are connected
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Inventors: Shigemitsu Akutsu, Shigeru Koyama
  • Publication number: 20230318052
    Abstract: An all solid-state battery unit includes: a battery module in which a plurality of all solid-state battery cells are laminated; a pressurization unit configured to pressurize the battery module; and a control unit configured to control the pressurization unit, the control unit controls a pressurization force of the pressurization unit depending on either or both of a temperature of the battery module and a State of Charge of the battery module.
    Type: Application
    Filed: February 9, 2023
    Publication date: October 5, 2023
    Inventors: Shigemitsu Akutsu, Shigeru Koyama
  • Publication number: 20230155240
    Abstract: Provided is a battery module which can appropriately pressurize the laminate, absorb displacement of the applied load accompanying charge and discharge of the laminated battery cells during use of the lithium ion battery, and fix pressure plates at ends in the lamination direction of the lithium ion battery laminate to a case. A battery module includes: a cell laminate in which a plurality of battery cells having a power generation element and external body covering the power generation element are laminated; a fastening member which fastens the cell laminate; end plates disposed at both ends in a lamination direction of the cell laminate; a fastening nut which fastens the fastening member and the end plate at an outer side of the cell laminate; a stay fastened by the fastening nut; and a case accommodating the cell laminate, in which the cell laminate is fixed to the case by the stay.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 18, 2023
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20230113935
    Abstract: To provide a battery module capable of applying a uniform surface pressure to a stack. Provided is a battery module including: a cell stack in which solid battery cells are stacked; end plates that are disposed at both ends of the cell stack in a stacking direction; and pressurizing plates that are fastened to the end plates on an outer side of the end plates in the stacking direction, the pressurizing plates abutting on the end plates at a plurality of load points.
    Type: Application
    Filed: August 25, 2022
    Publication date: April 13, 2023
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20230108683
    Abstract: To provide a battery module capable of suitably pressurizing a stack and having high energy density. Provided is a battery module including: a cell stack in which a plurality of battery cells are stacked, the battery cells including power generation elements and exterior bodies that cover the power generation elements, in which first through-holes penetrating through the plurality of battery cells in a stacking direction are provided at center portions of the plurality of battery cells, and a fastening member that fastens the cell stack is disposed in the first through-holes.
    Type: Application
    Filed: August 25, 2022
    Publication date: April 6, 2023
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20220384802
    Abstract: Provided is a solid-state battery having a bipolar electrode plate and capable of reducing the lamination space factor of a solid electrolyte and reducing electrical resistivity. The solid-state battery includes: a laminate including a positive electrode plate, at least one bipolar electrode plate, and a negative electrode plate that are laminated; and a solid electrolyte layer formed on a lamination surface of the at least bipolar electrode plate.
    Type: Application
    Filed: May 20, 2022
    Publication date: December 1, 2022
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO, Toru SUKIGARA
  • Publication number: 20220384803
    Abstract: Provide is a solid-state battery capable of reducing the lamination space factor of a solid electrolyte and reducing electrical resistivity. A solid-state battery includes: a laminate including a positive electrode plate and a negative electrode plate that are alternately laminated; and a solid electrolyte layer formed on at least one of a lamination surface of the positive electrode plate and a lamination surface of the negative electrode plate.
    Type: Application
    Filed: May 23, 2022
    Publication date: December 1, 2022
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO, Toru SUKIGARA
  • Publication number: 20220271382
    Abstract: A battery module in which surface pressure is made uniform within a surface of each of the stacked battery cells with a simple and compact configuration is provided. A battery module in which a stacked body of a plurality of battery cells is pinched and held by end plates (first end plate and second end plate) from both end sides in a stacking direction is provided. In each of the end plates, a facing surface facing the stacked body includes a protruding surface portion. In each of the end plates, an opposite surface on the opposite side of the facing surface may include a recessed surface portion.
    Type: Application
    Filed: January 17, 2022
    Publication date: August 25, 2022
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20220271383
    Abstract: Provided is a battery module in which torsion residual stress in a rod-shaped connecting member that fastens end plates is minimized so that looseness of the end plate fastening member can be prevented during use. A battery module in which a stacked body of a plurality of battery cells is pinched and held by two end plates from both end sides in a stacking direction, includes a rod-shaped connecting member. The rod-shaped connecting member applies tension in directions opposite to each other to the two end plates on both the end sides. The rod-shaped connecting member includes fastening portions adjacent to one end plate, and includes a detent mechanism part in the vicinity of the fastening portions.
    Type: Application
    Filed: January 19, 2022
    Publication date: August 25, 2022
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Patent number: 11370407
    Abstract: A collinear relationship is satisfied in which rotation speeds of first to third rotation elements and rotation speeds of fourth to sixth rotation elements are arranged respectively in this sequence on a single straight line in a collinear diagram. The first and fourth rotation elements are connected with first and second power sources respectively. The second and fifth rotation elements are connected with first and second driven units respectively. The second and sixth rotation elements are connected with each other by a first connecting mechanism in a way that rotating directions thereof are the same, and rotation speed of the former is greater than that of the later. The third and fifth rotation elements are connected with each other by a second connecting mechanism in a way that rotating directions thereof are the same, and rotation speed of the former is greater than that of the later.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 28, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazutaka Kawahara, Noriyuki Abe, Shigemitsu Akutsu
  • Patent number: 11345256
    Abstract: The present invention provides a battery temperature control system having a simple configuration and capable of immediately raising a battery temperature by actively using heat generated by an internal combustion engine. The battery temperature control system includes: an engine cooling circuit in which a coolant in an internal combustion engine is circulated between a coolant jacket and a radiator by a coolant pump; an exhaust heat recovery circuit in which a coolant in an EGR cooler that recovers exhaust heat of the internal combustion engine flows; a battery cooler-destined branch circuit that is branched from the engine cooling circuit and goes toward an upstream side of the battery cooler in the battery cooling circuit 11; and a channel switching mechanism that selectively connects a downstream side of at least one of the exhaust heat recovery circuit or the battery cooler-destined branch circuit to the upstream side of the battery cooler in the battery cooling circuit.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: May 31, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shigemitsu Akutsu, Shinji Fujimoto
  • Publication number: 20210296743
    Abstract: Provided is a secondary battery made using a bipolar electrode for which productivity is not inhibited for reasons such as requiring an electrode welding method differing from a normal electrode. Provided are a partial power generation element configured by a single laminate body in which a bipolar electrode having a positive electrode of polarizable electrode formed on one surface and a negative electrode of the polarizable electrode formed on the other surface of one sheet-like collector, laminated on at least one surface side of a solid electrolyte later, or configured by a multi-layer laminate body in which a plurality of the single laminate bodies are laminated; and normal electrodes of a form laminated directly or via the solid electrolyte layer on the one surface side and other surface side of the partial power generation element, in which poles of the same polarity are formed on the same surface of the one sheet-like collector.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 23, 2021
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20210296739
    Abstract: A solid-state battery cell that can enable high output and in which cell terminals can be freely arranged is provided. A solid-state battery cell 100 has a plurality of unit solid-state batteries 10 that each have a negative electrode plate 101, a positive electrode plate 102, and a solid electrolyte layer 103, and a negative electrode collector plate 106 and positive electrode collector plate 107 that are electrically connected to cell terminals, wherein the negative electrode plate 101 and the positive electrode plate 102 each have a plurality of electrodes, the positive electrode collector plate 107 and the negative electrode collector plate 106 are respectively electrically connected to the pluralities of electrodes, and a plurality of the unit solid-state batteries 10 is electrically connected in series by the pluralities of electrodes and housed in a single cell.
    Type: Application
    Filed: March 11, 2021
    Publication date: September 23, 2021
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO, Toru SUKIGARA, Shintaro AOYAGI
  • Publication number: 20210296686
    Abstract: To provide a laminated solid-state battery capable of allowing a high voltage to be obtained and the installation space to be reduced. A laminated solid-state battery (100) including a plurality of unit solid-state batteries (10, 10a). Each unit solid-state battery of the plurality of unit solid-state batteries (10, 10a) includes a positive electrode (101, 101a), a negative electrode (102, 102a), and a solid electrolyte (103). The plurality of unit solid-state batteries (10, 10a) are electrically connected to each other in series and housed in a single laminate cell (104). Preferably, the plurality of unit solid-state batteries (10, 10a) are electrically connected to each other in series inside the laminate cell (104).
    Type: Application
    Filed: March 11, 2021
    Publication date: September 23, 2021
    Inventors: Shinji Fujimoto, Toru Sukigara, Shigemitsu Akutsu
  • Publication number: 20210296630
    Abstract: Provided are a partial power generation element configured by a single laminate body in which a bipolar electrode is laminated, or a multi-layer laminate body in which a plurality of the single laminate bodies is laminated; and a positive electrode normal electrode and negative electrode normal electrode, in which the partial power generation element configures a serial partial power generation element in which the single laminate body which is a constituent element of the multi-layer laminate body is laminated between the positive electrode normal electrode and negative electrode normal electrode with an orientation of polarity configuring a serial connection, and between the positive electrode collector electrode and two negative electrode normal electrodes corresponding thereto, the serial partial power generation element joins with reverse polarity sandwiching the positive electrode collector electrode to configure a parallel connection body by connecting in parallel the serial partial power generation el
    Type: Application
    Filed: March 15, 2021
    Publication date: September 23, 2021
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO, Toru SUKIGARA, Shintaro AOYAGI
  • Publication number: 20210288367
    Abstract: The present disclosure is intended to provide a vehicle-mountable battery unit that includes a high-voltage battery and a low-voltage battery integrated with each other and that is compatible with significantly restricted installation conditions. A vehicle-mountable battery unit of the present disclosure includes a high-voltage battery constituted by a plurality of layered flat battery cells of a predetermined first specification; a low-voltage battery constituted by a plurality of layered flat battery cells of a predetermined second specification; and a support structure supporting the high-voltage battery and the low-voltage battery, as a combination battery unit into which the high and low-voltage batteries and are integrated while being insulated from each other, the support structure pressurizing the high and low-voltage batteries and as the combination battery unit in a layering direction in which the flat battery cells are layered.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 16, 2021
    Inventors: Shinji FUJIMOTO, Shigemitsu AKUTSU
  • Publication number: 20210276454
    Abstract: The present invention provides a battery temperature control system having a simple configuration and capable of immediately raising a battery temperature by actively using heat generated by an internal combustion engine. The battery temperature control system includes: an engine cooling circuit in which a coolant in an internal combustion engine is circulated between a coolant jacket and a radiator by a coolant pump; an exhaust heat recovery circuit in which a coolant in an EGR cooler that recovers exhaust heat of the internal combustion engine flows; a battery cooler-destined branch circuit that is branched from the engine cooling circuit and goes toward an upstream side of the battery cooler in the battery cooling circuit 11; and a channel switching mechanism that selectively connects a downstream side of at least one of the exhaust heat recovery circuit or the battery cooler-destined branch circuit to the upstream side of the battery cooler in the battery cooling circuit.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 9, 2021
    Inventors: Shigemitsu AKUTSU, Shinji FUJIMOTO
  • Publication number: 20180339695
    Abstract: A collinear relationship is satisfied in which rotation speeds of first to third rotation elements and rotation speeds of fourth to sixth rotation elements are arranged respectively in this sequence on a single straight line in a collinear diagram. The first and fourth rotation elements are connected with first and second power sources respectively. The second and fifth rotation elements are connected with first and second driven units respectively. The second and sixth rotation elements are connected with each other by a first connecting mechanism in a way that rotating directions thereof are the same, and rotation speed of the former is greater than that of the later. The third and fifth rotation elements are connected with each other by a second connecting mechanism in a way that rotating directions thereof are the same, and rotation speed of the former is greater than that of the later.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 29, 2018
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Kazutaka KAWAHARA, Noriyuki ABE, Shigemitsu AKUTSU
  • Patent number: 8666579
    Abstract: A hybrid vehicle is driven by a power unit which includes: a first rotating machine including a first rotor, a first stator, and a second rotor, wherein the number of magnetic poles generated by an armature row of the first stator and one of the first rotor and the second rotor are connected to a drive shaft; a power engine, wherein an output shaft of the power engine is connected to the other of the first rotor and the second rotor; a second rotating machine; and a capacitor. The hybrid vehicle includes: a state detector that detects a charge state of the capacitor; and a controller that controls the power unit. The controller controls the output of the power engine, based on a remaining capacity of the capacitor when driving the power engine in order to start the hybrid vehicle. Accordingly, it is possible to achieve reduction in the size and cost of the power unit and enhance the driving efficiency of the power unit.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: March 4, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Noriyuki Abe, Kota Kasaoka, Masashi Bando, Satoyoshi Oya
  • Patent number: 8647230
    Abstract: A moving apparatus that is capable of properly driving an accessory while preventing driven parts from being driven when the accessory is driven in a state where the driven parts are at rest. In the moving apparatus VE1, out of first to third elements S, C, and R configured such that they rotate during transmission of motive power therebetween while maintaining a collinear relationship in rotational speed, the first element S is mechanically connected to a first rotor 13 of a first rotating machine 11, one of the second and third elements C and R is mechanically connected to an output portion 3a of a prime mover 3 and an input portion 32 of an accessory 31, and the other of the second and third elements C and R is mechanically connected to driven parts DW and DW.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 11, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigemitsu Akutsu, Shinji Fujimoto, Mitsuhiro Takeda, Noriyuki Abe