公开(公告)号：US20210387174A1

公开(公告)日：2021-12-16

申请号：US17461409

申请日：2021-08-30

申请人： Xergy Inc.

发明人： Bamdad Bahar ,  John Paul Saltwick

IPC分类号： B01J47/12 ,  C08J5/22

摘要： An ion exchange membrane has multiple layers of ionic polymers which each contain substantially different chemical compositions. i.e. varying side chain lengths, varying backbone chemistries or varying ionic functionality. Utilizing completely different chemistries has utility in many applications such as fuel cells where for example, one layer can help reduce fuel crossover through the membrane. Or one layer can impart substantial hydrophobicity to the electrode formulation. Or one layer can selectively diffuse a reactant while excluding others. Also, one chemistry may allow for impartation of significant mechanical properties or chemical resistance to another more ionically conductive ionomer. The ion exchange membrane may include at least two layers with substantially different chemical properties.

公开(公告)号：US11103864B2

公开(公告)日：2021-08-31

申请号：US16560876

申请日：2019-09-04

申请人： Xergy Inc.

发明人： Bamdad Bahar ,  John Paul Saltwick

IPC分类号： B01J47/12 ,  C08J5/22

摘要： An ion exchange membrane has multiple layers of ionic polymers which each contain substantially different chemical compositions. i.e. varying side chain lengths, varying backbone chemistries or varying ionic functionality. Utilizing completely different chemistries has utility in many applications such as fuel cells where for example, one layer can help reduce fuel crossover through the membrane. Or one layer can impart substantial hydrophobicity to the electrode formulation. Or one layer can selectively diffuse a reactant while excluding others. Also, one chemistry may allow for impartation of significant mechanical properties or chemical resistance to another more ionically conductive ionomer. The ion exchange membrane may include at least two layers with substantially different chemical properties.

公开(公告)号：US11712690B2

公开(公告)日：2023-08-01

申请号：US17461409

申请日：2021-08-30

申请人： Xergy Inc.

发明人： Bamdad Bahar ,  John Paul Saltwick

IPC分类号： B01J47/12 ,  C08J5/22

CPC分类号： B01J47/12 ,  C08J5/2225 ,  B01D2325/42

摘要： An ion exchange membrane has multiple layers of ionic polymers which each contain substantially different chemical compositions. i.e. varying side chain lengths, varying backbone chemistries or varying ionic functionality. Utilizing completely different chemistries has utility in many applications such as fuel cells where for example, one layer can help reduce fuel crossover through the membrane. Or one layer can impart substantial hydrophobicity to the electrode formulation. Or one layer can selectively diffuse a reactant while excluding others. Also, one chemistry may allow for impartation of significant mechanical properties or chemical resistance to another more ionically conductive ionomer. The ion exchange membrane may include at least two layers with substantially different chemical properties.