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    Sealing gasket and tubular battery incorporating sealing gasket
    1.
    发明授权
    Sealing gasket and tubular battery incorporating sealing gasket 有权

    公开(公告)号：US12244027B2

    公开(公告)日：2025-03-04

    申请号：US17374993

    申请日：2021-07-14

    Applicant: FDK CORPORATION

    Inventor： Tatsuya Yamazaki ,  Shigeyuki Kuniya

    IPC: H01M50/171 ,  H01M6/02 ,  H01M50/152 ,  H01M50/184 ,  H01M50/186 ,  H01M50/193 ,  H01M50/198

    Abstract: A sealing gasket used in a tubular battery includes a disc-shaped partition portion; an outer peripheral portion provided to stand from a peripheral edge of the partition portion and held between an open end of a metal battery can and a dish-shaped metal sealing plate; and a plurality of stress buffer portions formed of annular grooves formed concentrically in the partition portion, wherein the tubular battery includes the metal battery can having a bottomed tubular shape and has the open end subjected to inward diameter reduction, a power generation element housed in the battery can, the dish-shaped metal sealing plate fitted and attached to the open end subjected to the inward diameter reduction, and the sealing gasket made of resin and held between the open end and the sealing plate.

    All-solid-state battery
    3.
    发明授权
    All-solid-state battery 有权

    公开(公告)号：US12132165B2

    公开(公告)日：2024-10-29

    申请号：US16996910

    申请日：2020-08-19

    Applicant: FDK CORPORATION

    Inventor： Shinzo Fujii ,  Yuji Goto ,  Masakazu Kobayashi ,  Tomohiro Fujisawa ,  Yoichiro Kawano ,  Masanori Nakanishi ,  Chihiro Yamamoto ,  Akihiko Kato

    IPC: H01M10/0562 ,  H01M4/525

    CPC classification number: H01M10/0562 ,  H01M4/525

    Abstract: An all-solid-state battery includes an electrode body in which a cathode layer that contains a cathode active material and a solid electrolyte, an electrolyte layer that is formed of the solid electrolyte, and an anode layer that contains an anode active material and the solid electrolyte are stacked in this order in an up-down direction, in which the cathode active material is a compound represented by a chemical formula Li2Fe(1-x)MxP(2-y)AyO7, contains at least one metal of Ti, V, Cr, Ni, and Co as the M in the chemical formula, and contains at least one element of B, C, Al, Si, Ga, and Ge as the A in the chemical formula, the x in the chemical formula satisfies 0.8

    AIR BATTERY MODULE
    4.
    发明公开
    AIR BATTERY MODULE 审中-公开

    公开(公告)号：US20240332677A1

    公开(公告)日：2024-10-03

    申请号：US18622822

    申请日：2024-03-29

    Applicant: FDK CORPORATION

    Inventor： Yoshiyuki Ogihara ,  Takeshi Kajiwara ,  Shohei Unoki ,  Minori Nishi

    IPC: H01M12/08 ,  H01M4/80 ,  H01M4/86 ,  H01M8/0202 ,  H01M8/0239

    CPC classification number: H01M12/08 ,  H01M4/808 ,  H01M4/8626 ,  H01M8/0239 ,  H01M8/0269

    Abstract: An air battery module includes a plurality of air battery cells connected in series. Each air battery cell includes a negative electrode current collector, a negative electrode plate, a separator, a positive electrode current collector supporting an air electrode, a water-repellent film, and a flow channel plate. The positive electrode current collector includes a conductive frame and two conductive connection parts formed integrally with the frame and extending in a direction away from the negative electrode current collector. The two connection parts are formed so as to face each other with the air electrode interposed therebetween. When the positive electrode side of a battery cell is connected to the negative electrode side of an adjacent battery cell, the connection part of the battery cell is contact with the negative electrode current collector of the adjacent battery cell and electrically connected thereto.

    BACKUP POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING BACKUP POWER SUPPLY DEVICE
    6.
    发明公开
    BACKUP POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING BACKUP POWER SUPPLY DEVICE 审中-公开

    公开(公告)号：US20230246478A1

    公开(公告)日：2023-08-03

    申请号：US18002854

    申请日：2021-04-26

    Applicant: FDK CORPORATION

    Inventor： Katsuhiko Tamaki ,  Yasuyuki Katsube ,  Naoaki Konda

    IPC: H02J9/06 ,  H02J7/00

    CPC classification number: H02J9/06 ,  H02J7/007182 ,  H02J7/0063

    Abstract: Provided is a backup power supply that efficiently supplies power under the control of a microcomputer. The backup power supply is charged by a rectifier for generating power of a predetermined voltage, and supplies power to a load device operating with power supplied from the rectifier when the supplied power is insufficient. The backup power supply includes a secondary battery to be charged with power from the rectifier, a control unit for controlling charging and discharging of the secondary battery, and an input/output voltage detection unit for detecting the output voltage from the rectifier. The control unit stops charging of the secondary battery or reduces a charging current flow of the secondary battery when the output voltage drops to a first threshold voltage or less.

    ALKALINE STORAGE BATTERY
    7.
    发明申请
    ALKALINE STORAGE BATTERY 有权

    公开(公告)号：US20230112329A1

    公开(公告)日：2023-04-13

    申请号：US17905257

    申请日：2021-03-09

    Applicant: FDK CORPORATION

    Inventor： Masaru Takasu

    IPC: H01M50/586 ,  H01M4/24 ,  H01M50/538

    Abstract: An alkaline storage battery of the present invention includes: an electrode group that includes a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode, which are stacked on top of each other; an outer can that is bottomed cylindrical shape having an opening at the top; a sealing body that seals the outer can; and a positive terminal electrically connected to the sealing body. The positive electrode includes a positive electrode body and a positive electrode protrusion protruding from a portion of the positive electrode body toward the sealing body to connect electrically to the sealing body. The negative electrode includes a negative electrode body and a negative electrode protrusion protruding from a portion of the negative electrode body toward the sealing body and terminating between the sealing body and the negative electrode body. The positive electrode and the negative electrode have a positive electrode active material and a negative electrode active material, respectively, in portions facing each other with the separator therebetween.

    METHOD OF MANUFACTURING SOLID-STATE BATTERY AND SOLID-STATE BATTERY
    10.
    发明申请
    METHOD OF MANUFACTURING SOLID-STATE BATTERY AND SOLID-STATE BATTERY 有权

    公开(公告)号：US20220344633A1

    公开(公告)日：2022-10-27

    申请号：US17854106

    申请日：2022-06-30

    Applicant: FDK CORPORATION

    Inventor： Masakazu KOBAYASHI ,  Akihiro MITANI ,  Satoshi HIGUCHI ,  Minako SUZUKI ,  Yuji GOTO

    IPC: H01M4/139 ,  H01M10/0562 ,  H01M10/0585 ,  H01M4/04

    Abstract: A method of manufacturing a solid-state battery includes forming an electrode that includes a first electrode layer and a second electrode layer facing the first electrode layer and that further includes a buried layer interposed between the first electrode layer and the second electrode layer so as to surround a contact portion where these electrode layers contact each other. For the buried layer, a solid electrolyte with lower electron conductivity than an electrode active material is used, for example. The buried layer is provided between the edge portion of the first electrode layer and the edge portion of the second electrode layer, so that deformation of the first electrode layer and second electrode layer is prevented in the subsequent lamination and thermocompression bonding and thus the occurrence of a short circuit due to such deformation is prevented in the solid-state battery.

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