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    Catalyst layer for polymer electrolyte fuel cells, membrane-electrode assembly, and polymer electrolyte fuel cell
    2.
    发明授权
    Catalyst layer for polymer electrolyte fuel cells, membrane-electrode assembly, and polymer electrolyte fuel cell 有权

    公开(公告)号：US12176547B2

    公开(公告)日：2024-12-24

    申请号：US17478485

    申请日：2021-09-17

    Applicant: TOPPAN PRINTING CO., LTD.

    Inventor： Hiroaki Koyama ,  Madoka Ozawa

    IPC: H01M4/86 ,  H01M4/90 ,  H01M8/1004 ,  H01M8/1018

    Abstract: A catalyst layer for polymer electrolyte fuel cells that improves drainage or gas diffusion, reduces or prevents the occurrence of cracking in a catalyst layer, enhances catalyst utilization efficiency, exerts high output power and high energy conversion efficiency, and has high durability, and also provides a membrane-electrode assembly and a polymer electrolyte fuel cell using the catalyst layer. The catalyst layer for polymer electrolyte fuel cells contains a catalyst, carbon particles, a polymer electrolyte, and a fibrous material. In the catalyst layer, the carbon particles carry the catalyst1. The catalyst layer for polymer electrolyte fuel cells has voids. The percentage of frequencies of the voids having a cross-sectional area of 10,000 nm2 or more is 13% or more and 20% or less among the voids observed in a thickness-direction cross section of the catalyst layer for polymer electrolyte fuel cells perpendicular to the surface thereof.

    SEALED REDOX BATTERY
    4.
    发明申请
    SEALED REDOX BATTERY 有权

    公开(公告)号：US20240405245A1

    公开(公告)日：2024-12-05

    申请号：US18804658

    申请日：2024-08-14

    Applicant: Standard Energy Inc.

    Inventor： Dongyoung Lee ,  Bugi Kim ,  Dongheun Kim ,  Sanghyun Park ,  Kangyeong Choe

    IPC: H01M8/20 ,  H01M4/90 ,  H01M4/94 ,  H01M4/96 ,  H01M8/04082 ,  H01M8/1018 ,  H01M8/18

    Abstract: The disclosed technology generally relates to energy storage devices, and more particularly to redox batteries. In one aspect, a redox battery comprises a first half cell and a second half cell. The first half cell comprises a positive electrolyte reservoir comprising a first electrolyte contacting a positive electrode and has dissolved therein a first redox couple configured to undergo a first redox half reaction. The second half cell comprises a negative electrolyte reservoir comprising a second electrolyte contacting a negative electrode and has dissolved therein a second redox couple configured to undergo a second redox half reaction. The redox battery additionally comprises an ion exchange membrane separating the positive electrolyte reservoir and the negative electrolyte reservoir. The first half cell, the second half cell and the ion exchange membrane define a redox battery cell that is sealed in a casing.

    Membrane electrode assembly manufacturing process
    5.
    发明授权
    Membrane electrode assembly manufacturing process 有权

    公开(公告)号：US12155102B2

    公开(公告)日：2024-11-26

    申请号：US17567471

    申请日：2022-01-03

    Applicant: W. L. Gore & Associates, Inc.

    Inventor： Mark Edmundson ,  F. Colin Busby

    IPC: H01M8/1004 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10

    Abstract: Methods and compositions for making fuel cell components are described. In one embodiment, the method comprises providing a substrate, and forming or adhering an electrode on the substrate, wherein the forming includes depositing an aqueous mixture comprising water, a water-insoluble component, a catalyst, and an ionomer. The water-insoluble component comprises a water-insoluble alcohol, a water-insoluble carboxylic acid, or a combination thereof. The use of such water-insoluble components results in a stable liquid medium with reduced reticulation upon drying, reduced dissolution of the substrate, and reduced penetration of the pores of the substrate.

    ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE AND MODULE HOUSING DEVICE
    6.
    发明申请
    ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE AND MODULE HOUSING DEVICE 有权

    公开(公告)号：US20240387849A1

    公开(公告)日：2024-11-21

    申请号：US18693920

    申请日：2022-09-28

    Applicant: KYOCERA CORPORATION

    Inventor： Kazunari MIYAZAKI

    IPC: H01M8/1213 ,  H01M4/90 ,  H01M8/12 ,  H01M8/1253

    Abstract: An electrochemical cell includes a first electrode layer, a second electrode layer, and a solid electrolyte layer. The first electrode layer includes a first material and a second material having ion conductivity. The solid electrolyte layer is located between the first electrode layer and the second electrode layer, and contains Zr (zirconium). The first material has a higher electron conductivity than the second material. The first electrode layer includes a first part containing the first material and a second part located between the first part and the solid electrolyte layer.

    AMBIENT TEMPERATURE LIQUID METAL AIR FLOW BATTERY
    7.
    发明申请
    AMBIENT TEMPERATURE LIQUID METAL AIR FLOW BATTERY 有权

    公开(公告)号：US20240372112A1

    公开(公告)日：2024-11-07

    申请号：US18654330

    申请日：2024-05-03

    Applicant: Worcester Polytechnic Institute

    Inventor： Andrew R. Teixeira ,  Ravindra Datta ,  Pratap Rao ,  Ari Athair ,  Cameron Armstrong ,  Muntasir Shahabuddin

    IPC: H01M4/90 ,  H01M4/86 ,  H01M8/18 ,  H01M50/497

    Abstract: A low temperature, liquid metal approach provides a metal-air battery at room temperature or slightly above for high current density, using ambient oxygen as an electrode without the need for high heat for an opposed metal electrode. A metal-air battery employs a low melting point metal such as gallium for an all-fluid battery having a flowing aqueous electrolyte for maintaining a large volume of electrical storage capacity separate form a relatively small reactor or cell for powering an electrical load. Reversibility of the forward discharge (load powering) reaction provides a recharging capability well suited for grid storage to moderate supply and demand variations. The result is an ultra-high density, rechargeable, safe, grid-scale electricity storage technology as an alternative to lithium-ion and solvent-based flow batteries.

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