公开(公告)号：US20210351414A1

公开(公告)日：2021-11-11

申请号：US17202145

申请日：2021-03-15

Applicant: CellMobility, Inc.

Inventor： Yong-Hun Cho ,  Hyelim Choi ,  Ok-Hee Kim ,  Yung-Eun Sung ,  Heeman Choe

IPC: H01M4/88 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/66 ,  H01M8/0206 ,  H01M4/90 ,  H01M4/80 ,  H01M4/92

Abstract: An innovative fuel cell system with membrane electrode assemblies (MEAs) includes a polymer electrolyte membrane, a gas diffusion layer (GDL) made of porous metal foam, and a catalyst layer. A fuel cell has a metal foam layer that improves efficiency and lifetime of the conventional gas diffusion layer, which consists of both gas diffusion barrier (GDB) and microporous layer (MPL). This metal foam GDL enables consistent maintenance of the suitable structure and even distribution of pores during the operation. Due to the combination of mechanical and physical properties of metallic foam, the fuel cell is not deformed by external physical strain. Among many other processing methods of open-cell metal foams, ice-templating provides a cheap, easy processing route suitable for mass production. Furthermore, it provides well-aligned and long channel pores, which improve gas and water flow during the operation of the fuel cell.

公开(公告)号：US10265773B2

公开(公告)日：2019-04-23

申请号：US14256838

申请日：2014-04-18

Applicant: CellMobility, Inc.

Inventor： Ji Hyun Um ,  Hyeji Park ,  Myounggeun Choi ,  Hyelim Choi ,  Yong-Hun Cho ,  Yung-Eun Sung ,  Heeman Choe

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  B22F3/24 ,  H01M4/58 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587 ,  H01M4/04 ,  B22F3/22 ,  B22F3/11 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/66 ,  H01M4/80 ,  H01M10/052 ,  C22C1/04 ,  C22C33/02 ,  H01M10/0525

Abstract: Using metal foams for the electrode of secondary lithium battery, preparing method thereof, and secondary lithium battery including the metal foam. A metal foam is used in an electrode of secondary lithium battery where the surface and the inner pore walls are coated with the active materials, a method of manufacturing such metal foam, and secondary lithium battery including the metal foam.

公开(公告)号：US20230299306A1

公开(公告)日：2023-09-21

申请号：US18322523

申请日：2023-05-23

Applicant: CellMobility, Inc.

Inventor： Yong-Hun Cho ,  Hyelim Choi ,  Ok-Hee Kim ,  Yung-Eun Sung ,  Heeman Choe

IPC: H01M4/88 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/66 ,  H01M8/0206 ,  H01M4/90 ,  H01M4/80 ,  H01M4/92

CPC classification number: H01M4/8807 ,  H01M4/661 ,  H01M4/808 ,  H01M4/8626 ,  H01M4/8825 ,  H01M4/9041 ,  H01M4/9083 ,  H01M4/921 ,  H01M8/0206 ,  H01M8/1004 ,  H01M2008/1095

Abstract: An innovative fuel cell system with membrane electrode assemblies (MEAs) includes a polymer electrolyte membrane, a gas diffusion layer (GDL) made of porous metal foam, and a catalyst layer. A fuel cell has a metal foam layer that improves efficiency and lifetime of the conventional gas diffusion layer, which consists of both gas diffusion barrier (GDB) and microporous layer (MPL). This metal foam GDL enables consistent maintenance of the suitable structure and even distribution of pores during the operation. Due to the combination of mechanical and physical properties of metallic foam, the fuel cell is not deformed by external physical strain. Among many other processing methods of open-cell metal foams, ice-templating provides a cheap, easy processing route suitable for mass production. Furthermore, it provides well-aligned and long channel pores, which improve gas and water flow during the operation of the fuel cell.

公开(公告)号：US20190247925A1

公开(公告)日：2019-08-15

申请号：US16392526

申请日：2019-04-23

Applicant: CellMobility, Inc.

Inventor： Ji Hyun Um ,  Hyeji Park ,  Myounggeun Choi ,  Hyelim Choi ,  Yong-Hun Cho ,  Yung-Eun Sung ,  Heeman Choe

IPC: B22F3/24 ,  B22F3/11 ,  C22C1/04 ,  B22F3/22 ,  H01M4/04 ,  H01M4/38 ,  H01M4/587 ,  H01M4/134 ,  H01M4/133 ,  H01M4/58 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M4/80 ,  H01M4/66 ,  H01M4/1395 ,  H01M4/1393 ,  H01M4/1391 ,  C22C33/02

CPC classification number: B22F3/24 ,  B22F3/1121 ,  B22F3/222 ,  B22F2003/247 ,  B22F2998/10 ,  C22C1/0408 ,  C22C1/0416 ,  C22C1/0425 ,  C22C1/0433 ,  C22C1/0466 ,  C22C33/02 ,  H01M4/0404 ,  H01M4/0445 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/661 ,  H01M4/808 ,  H01M10/052 ,  H01M10/0525 ,  B22F3/10

Abstract: Using metal foams for the electrode of secondary lithium battery, preparing method thereof, and secondary lithium battery including the metal foam. A metal foam is used in an electrode of secondary lithium battery where the surface and the inner pore walls are coated with the active materials, a method of manufacturing such metal foam, and secondary lithium battery including the metal foam.

公开(公告)号：US11658308B2

公开(公告)日：2023-05-23

申请号：US17202145

申请日：2021-03-15

Applicant: CellMobility, Inc.

Inventor： Yong-Hun Cho ,  Hyelim Choi ,  Ok-Hee Kim ,  Yung-Eun Sung ,  Heeman Choe

IPC: H01M4/88 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/66 ,  H01M8/0206 ,  H01M4/90 ,  H01M4/80 ,  H01M4/92 ,  H01M8/10

CPC classification number: H01M4/8807 ,  H01M4/661 ,  H01M4/808 ,  H01M4/8626 ,  H01M4/8825 ,  H01M4/9041 ,  H01M4/9083 ,  H01M4/921 ,  H01M8/0206 ,  H01M8/1004 ,  H01M2008/1095 ,  Y02P70/50

Abstract: An innovative fuel cell system with membrane electrode assemblies (MEAs) includes a polymer electrolyte membrane, a gas diffusion layer (GDL) made of porous metal foam, and a catalyst layer. A fuel cell has a metal foam layer that improves efficiency and lifetime of the conventional gas diffusion layer, which consists of both gas diffusion barrier (GDB) and microporous layer (MPL). This metal foam GDL enables consistent maintenance of the suitable structure and even distribution of pores during the operation. Due to the combination of mechanical and physical properties of metallic foam, the fuel cell is not deformed by external physical strain. Among many other processing methods of open-cell metal foams, ice-templating provides a cheap, easy processing route suitable for mass production. Furthermore, it provides well-aligned and long channel pores, which improve gas and water flow during the operation of the fuel cell.

公开(公告)号：US10978715B2

公开(公告)日：2021-04-13

申请号：US13930887

申请日：2013-06-28

Applicant: CellMobility, Inc.

Inventor： Yong-Hun Cho ,  Hyelim Choi ,  Ok-Hee Kim ,  Yung-Eun Sung ,  Heeman Choe

IPC: H01M4/88 ,  H01M4/86 ,  H01M8/10 ,  H01M8/1004 ,  H01M4/66 ,  H01M8/0206 ,  H01M4/90 ,  H01M4/80 ,  H01M4/92 ,  H01M8/1018

Abstract: An innovative fuel cell system with MEAs includes a polymer electrolyte membrane, a gas diffusion layer (GDL) made of porous metal foam, and a catalyst layer. A fuel cell has a metal foam layer that improves efficiency and lifetime of the conventional gas diffusion layer, which consists of both gas diffusion barrier (GDB) and microporous layer (MPL). This metal foam GDL enables consistent maintenance of the suitable structure and even distribution of pores during the operation. Due to the combination of mechanical and physical properties of metallic foam, the fuel cell is not deformed by external physical strain. Among many other processing methods of open-cell metal foams, ice-templating provides a cheap, easy processing route suitable for mass production. Furthermore, it provides well-aligned and long channel pores, which improve gas and water flow during the operation of the fuel cell.