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    ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY
    2.
    发明申请
    ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY 有权

    公开(公告)号：US20220246944A1

    公开(公告)日：2022-08-04

    申请号：US17581860

    申请日：2022-01-22

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Kiyoshi TANAAMI ,  Toshimitsu TANAKA ,  Yuji ISOGAI ,  Masahiro OHTA ,  Takuya TANIUCHI

    IPC: H01M4/76 ,  H01M4/36

    Abstract: Provided is an electrode for lithium ion secondary batteries in which an electrode material mixture is packed in porous metal, which electrode has excellent penetration of electrolyte solution and improved ion diffusivity. The electrode for lithium ion secondary batteries includes a current collector made of porous metal; and an electrode layer including an electrode material mixture including at least an electrode active material, in which the current collector is filled with the electrode material mixture, the current collector has an intermediate region and two surface regions in its thickness direction and m the electrode layer, the intermediate region has a porosity lower than that of the two surface region, and the intermediate region is filled with a first electrode active material, and the two surface regions are filled with a second electrode active material having a particle size larger than that of the first electrode active material.

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY COMPRISING THE SAME
    4.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY COMPRISING THE SAME 有权

    公开(公告)号：US20220231288A1

    公开(公告)日：2022-07-21

    申请号：US17578467

    申请日：2022-01-19

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Kiyoshi TANAAMI ,  Toshimitsu TANAKA ,  Yuji ISOGAI ,  Shintaro AOYAGI ,  Takuya TANIUCHI ,  Toshiyuki ARIGA

    IPC: H01M4/38 ,  H01M4/66 ,  H01M4/80

    Abstract: To provide a nonaqueous electrolyte secondary battery negative electrode which enables suppressing durability deterioration, improving cycle durability and energy density, and suppressing the rupture of the conductive paths of a current collector comprising a porous metal body in a region which is the boundary between a coated region with an electrode mixture and an uncoated region (electrode mixture boundary region) and a nonaqueous electrolyte secondary battery comprising the same. A nonaqueous electrolyte secondary battery negative electrode, comprising: a current collecting foil; a pair of current collectors disposed in contact with both surfaces of the current collecting foil and comprising a porous metal body; and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises: a negative electrode active material comprising a silicon-based material; a skeleton-forming agent containing a silicate having a siloxane bond; a conductive auxiliary; and a binder.

    SOLID-STATE BATTERY ANODE AND SOLID-STATE BATTERY
    5.
    发明申请
    SOLID-STATE BATTERY ANODE AND SOLID-STATE BATTERY 有权

    公开(公告)号：US20250112223A1

    公开(公告)日：2025-04-03

    申请号：US18768159

    申请日：2024-07-10

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Kiyoshi TANAAMI ,  Hiroshi SAKAI ,  Toshimitsu TANAKA

    IPC: H01M4/133 ,  H01M4/02 ,  H01M4/48 ,  H01M4/587

    Abstract: The present invention relates to a solid-state battery anode including: an anode current collector including a metallic porous body as a constituent material; and an anode active material with which the anode current collector is filled, in which a pore portion without the metallic porous body in a thickness direction from a surface on a solid-state electrolyte side is provided in the anode current collector, the pore portion has a pore diameter of 100 μm to 180 μm, and a depth in a thickness direction is larger than the pore diameter.

    SOLID ELECTROLYTE COMPOSITE
    7.
    发明公开
    SOLID ELECTROLYTE COMPOSITE 审中-公开

    公开(公告)号：US20240332604A1

    公开(公告)日：2024-10-03

    申请号：US18585078

    申请日：2024-02-23

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Kizashi IWAKIRI ,  Takuya TANIUCHI ,  Toshimitsu TANAKA

    IPC: H01M10/0562 ,  H01M10/0525

    CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2300/0068 ,  H01M2300/0094

    Abstract: The present disclosure relates to a solid electrolyte composition that can achieve compatibility between energy density and strength of a solid-state battery. Provided is a solid electrolyte composite disposed between a positive electrode layer and a negative electrode layer in a solid-state battery, comprising a positive electrode side solid electrolyte layer disposed in a side closer to the positive electrode layer and a negative electrode side solid electrolyte layer disposed in a side closer to the negative electrode layer, the solid electrolyte composite having a stepped shape having a step between the positive electrode side solid electrolyte layer and the negative electrode side solid electrolyte layer, at least the negative electrode side solid electrolyte layer comprising a filler and/or a porous substrate, the negative electrode side solid electrolyte layer having a higher content of the filler and/or the porous substrate than the positive electrode side solid electrolyte layer.

    ELECTRODE FOR LITHIUM ION SECONDARY BATTERY
    8.
    发明申请
    ELECTRODE FOR LITHIUM ION SECONDARY BATTERY 有权

    公开(公告)号：US20220216508A1

    公开(公告)日：2022-07-07

    申请号：US17645993

    申请日：2021-12-26

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Toshimitsu TANAKA ,  Kiyoshi TANAAMI ,  Takuya TANIUCHI ,  Toshiyuki ARIGA

    IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/80

    Abstract: To provide an electrode for a lithium ion secondary battery that can improve the diffusivity of lithium ions in an electrode material mixture when a metal porous body is used as a current collector, thereby improving the output characteristics and durability of the battery. A positive electrode 1 and a negative electrode 2, which are electrodes, respectively include a current collector 11 and a current collector 21 each including a metal porous body having communicating pores V, and an electrode material mixture 13 and an electrode material mixture 23, with which at least the pores V of the metal porous body are filled. At least an electrode active material and ionic conductor particles are dispersed in the electrode material mixtures 13 and 23. The ionic conductor particles are preferably oxide solid electrolyte particles.

    SOLID-STATE BATTERY
    9.
    发明公开
    SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20240213525A1

    公开(公告)日：2024-06-27

    申请号：US18492798

    申请日：2023-10-24

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Takuya TANIUCHI ,  Toshimitsu TANAKA ,  Kizashi IWAKIRI

    IPC: H01M10/0562 ,  H01M4/36 ,  H01M10/052 ,  H01M50/593

    CPC classification number: H01M10/0562 ,  H01M4/364 ,  H01M10/052 ,  H01M50/593

    Abstract: Provided is a solid-state battery including: an electrode laminate in which a negative electrode mixture layer, a solid electrolyte layer, and a positive electrode mixture layer are sequentially laminated over a negative electrode current collector; a positive electrode current collector; an insulating frame provided along an outer periphery of the positive electrode mixture layer and an outer periphery of the positive electrode current collector; and a positive electrode tab. In a cross section parallel to a laminating direction of the electrode laminate and perpendicular to a direction in which the positive electrode tab extends, the solid electrolyte layer has a first region disposed inside the insulating frame and a second region disposed outside the insulating frame, and when the solid-state battery is viewed from above, an outer peripheral edge of the second region is located outside an outer peripheral edge of the first region.

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