公开(公告)号：EP4446471A1

公开(公告)日：2024-10-16

申请号：EP24165273.4

申请日：2024-03-21

申请人： Robert Bosch GmbH

发明人： Cheng, Lei ,  Stuehmeier, Bjoern ,  Van Brunt, Alexander ,  Mojica, Felipe ,  Braaten, Jonathan ,  Mehrazi, Shirin

IPC分类号： C25B1/04 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B11/063

摘要： An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a polymer electrolyte membrane (PEM), a porous transport layer (PTL), and an anode catalyst layer. The PTL includes a PTL surface facing the PEM and including a PTL surface morphology. The anode catalyst layer is deposited on the PTL surface morphology to form a porous transport electrode (PTE) on the PTL surface including contact regions between the PEM and the PTL. The PTL includes noncontact regions between the contact regions along the PTL surface morphology. The noncontact regions are spaced apart from the PEM.

公开(公告)号：EP4446473A1

公开(公告)日：2024-10-16

申请号：EP24167603.0

申请日：2024-03-28

申请人： Robert Bosch GmbH

发明人： Cheng, Lei ,  Stuehmeier, Bjoern ,  Van Brunt, Alexander ,  Mojica, Felipe ,  Braaten, Jonathan ,  Mehrazi, Shirin

IPC分类号： C25B1/04 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B11/063

摘要： An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a current collector, a porous transport layer (PTL), and a PTL coating. The current collector may include a flow field plate having lands and channels collectively forming a flow field. The porous transport layer (PTL) includes a PTL surface facing the current collector and including a PTL surface morphology. The PTL coating is deposited on the PTL surface morphology to form contact regions between the flow field plate and the PTL. The PTL includes noncontact regions between the contact regions along the PTL surface morphology. The noncontact regions are spaced apart from the flow field plate.

公开(公告)号：EP4446472A1

公开(公告)日：2024-10-16

申请号：EP24167595.8

申请日：2024-03-28

申请人： Robert Bosch GmbH

发明人： Cheng, Lei ,  Stuehmeier, Bjoern ,  Van Brunt, Alexander ,  Braaten, Jonathan ,  Mehrazi, Shirin

IPC分类号： C25B1/04 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B11/063

摘要： An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a polymer electrolyte membrane (PEM), a porous transport layer (PTL), and an anode catalyst layer. The PTL includes a PTL surface facing the PEM and including a PTL surface morphology. The anode catalyst layer is deposited on the PTL surface morphology to form a porous transport electrode (PTE) including a PTE surface morphology. An ionomer and/or inert filler material may be infiltrated into the surface pores of the PTL and/or PTE.

公开(公告)号：EP4438771A2

公开(公告)日：2024-10-02

申请号：EP24163159.7

申请日：2024-03-13

申请人： Robert Bosch GmbH

发明人： Stuehmeier, Bjoern ,  Craig, Nathan P. ,  Mehrazi, Shirin ,  Braaten, Jonathan ,  Cheng, Lei ,  Johnston, Christina ,  Kitchaev, Daniil ,  Kornbluth, Mordechai

IPC分类号： C25B1/04 ,  C25B9/19 ,  C25B9/60

CPC分类号： C25B1/04 ,  C25B9/60 ,  C25B9/19

摘要： A polymer electrolyte water electrolyzer (PEWE). The PEWE includes a cathode catalyst layer, an anode catalyst layer, and a polymer electrolyte membrane between and separating the anode catalyst layer and the cathode catalyst layer. The PEWE further includes a blocking layer disposed between the cathode catalyst layer and configured to resist unwanted diffusion of ions or molecules through the polymer electrolyte water electrolyzer.