公开(公告)号：US20230047140A1

公开(公告)日：2023-02-16

申请号：US17717899

申请日：2022-04-11

申请人： University of Tennessee Research Foundation

发明人： Feng Yuan Zhang ,  Lei Ding ,  Kui Li ,  Zhiqiang Xie ,  Weitian Wang ,  Shule Yu

IPC分类号： C25B11/052 ,  C25B1/04 ,  C25B9/19 ,  C25B11/081 ,  C25B11/075 ,  C25B13/08

摘要： The presently disclosed subject matter relates to devices, systems, and methods for fabricating a solid polymer electrolyte electrode assembly are provided. One or more electrode for a solid polymer electrolyte electrode assembly includes a porous substrate configured as a liquid/gas diffusion layer and an ionomer-free catalyst coated on the substrate.

公开(公告)号：US20230047374A1

公开(公告)日：2023-02-16

申请号：US17717821

申请日：2022-04-11

申请人： University of Tennessee Research Foundation

发明人： Feng Yuan Zhang ,  Lei Ding ,  Kui Li ,  Weitian Wang ,  Shule Yu ,  Douglas Scott Aaron ,  Matthew M. Mench ,  Frida Helena Roenning ,  Anirban Roy

IPC分类号： H01M8/026 ,  H01M8/0265 ,  H01M8/0232 ,  H01M8/0234

摘要： The presently disclosed subject matter relates to devices, systems, and methods of producing an improved fluid flow assembly and liquid/gas diffusion layer in solid polymer electrolyte electrochemical cells. In one aspect, a fluid flow assembly for a polymer electrolyte water electrolyzer includes a flow field having an inlet, an outlet, and a plurality of discrete lands arranged within the flow field. A liquid/gas diffusion layer is positioned in communication with the flow field between the inlet and the outlet, the liquid/gas diffusion layer having a solid substrate through which a plurality of pores is formed. The disclosed bipolar plate flow field and liquid/gas diffusion layer could work together or separately with other types of porous transport layers or bipolar plates to enhance the water/gas transport. In these configurations, the lands can be arranged and configured such that the plurality of pores are substantially unobstructed by the lands.