Patents by Inventor Tianshu Liao

Tianshu Liao 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).

  • MEMBRANE ELECTRODE, FUEL CELL GAS DIFFUSION LAYER AND PROCESS FOR PREPARING THE FUEL CELL GAS DIFFUSION LAYER
    Publication number: 20220399548
    Abstract: Disclosed is a membrane electrode, fuel cell gas diffusion layer, and process for preparing the fuel cell gas diffusion layer, the process comprising: S1 coating microporous layer slurry on the surface of hydrophobic carbon paper; the microporous layer slurry was obtained by dispersing mixture of carbon powder, polytetrafluoroethylene dispersion solution, thickener, and solvent; S2 moving the hydrophobic carbon paper coated with the microporous layer slurry to a porous ceramic plate, and connecting a vacuum pump to the porous ceramic plate, vacuumed for adsorption pre-infiltration treatment, and then dried. S3 continuing to coat the microporous layer slurry on the hydrophobic carbon paper dried in step S2, then drying, and then sintering at 250-400° C. to obtain a gas diffusion layer. The beneficial effects of this disclosure include: this disclosure improve the water vapor erosion resistance of the microporous layer and the durability of the gas diffusion layer.
    Type: Application
    Filed: April 25, 2022
    Publication date: December 15, 2022
    Inventors: Qiang Liu, Lingfeng Gao, Tianshu Liao, Jianan Wang, Feng Cheng
  • Membrane electrode, fuel cell gas diffusion layer and process for preparing the fuel cell gas diffusion layer
    Patent number: 11527762
    Abstract: Disclosed is a membrane electrode, fuel cell gas diffusion layer, and process for preparing the fuel cell gas diffusion layer, the process comprising: S1 coating microporous layer slurry on the surface of hydrophobic carbon paper; the microporous layer slurry was obtained by dispersing mixture of carbon powder, polytetrafluoroethylene dispersion solution, thickener, and solvent; S2 moving the hydrophobic carbon paper coated with the microporous layer slurry to a porous ceramic plate, and connecting a vacuum pump to the porous ceramic plate, vacuumed for adsorption pre-infiltration treatment, and then dried. S3 continuing to coat the microporous layer slurry on the hydrophobic carbon paper dried in step S2, then drying, and then sintering at 250-400° C. to obtain a gas diffusion layer. The beneficial effects of this disclosure include: this disclosure improve the water vapor erosion resistance of the microporous layer and the durability of the gas diffusion layer.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: December 13, 2022
    Assignee: WUHAN HYDROGEN ENERGY AND FUEL CELL INDUSTRY TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Qiang Liu, Lingfeng Gao, Tianshu Liao, Jianan Wang, Feng Cheng