Michael A Demarinis, 6119 Lake St, Hopedale, MA 01747

6368476, Apr 9, 2002

Jun 1, 2000

09/585124

Michael DeMarinis - Upton MA, 01568
Emory S. De Castro - Nahant MA, 01908-1028
Robert J. Allen - Saugus MA, 01906
Khaleda Shaikh - Woburn MA, 01801

C25B 1100

204284, 20429007, 20429015, 204294, 429 40, 429 42, 429 44

Gas Diffusion Electrodes (GDEs) play a pivotal role in clean energy production as well as in electrochemical processes and sensors. These gas-consuming electrodes are typically designed for liquid electrolyte systems, and are commercially manufactured by hand or in a batch process. However, CDEs using the new electrolytes demand improved electrode structures. This invention pertains to GDEs and gas diffusion media with new structures for systems using membrane electrode assemblies (MEAs), and automated methods of manufacture that lend themselves to continuous mass production. Unexpected improvements in gas and vapor transport through the electrode are realized by incorporating a new dispersion process in the construction, reformulating the applied mix with solution additives, and creating a novel coating structure on a conductive web. Furthermore, combining these changes with a judicious choice in coating methodology allows one to produce these materials in a continuous, automated fashion.

6444602, Sep 3, 2002

Nov 14, 2000

09/715458

Michael DeMarinis - Upton MA
Emory S. De Castro - Nahant MA
Robert J. Allen - Saugus MA
Khaleda Shaikh - Woburn MA

DeNora S.p.A.

H01M 488

502101, 204282, 204284, 20429007, 20429014, 204294, 429 40, 429 42, 429 44

Gas Diffusion Electrodes (GDEs) play a pivotal role in clean energy production as well as in electrochemical processes and sensors. These gas-consuming electrodes are typically designed for liquid electrolyte systems such as phosphoric acid and alkaline fuel cells, and are commercially manufactured by hand or in a batch process. However, GDEs using the new electrolytes such as conductive polymer membranes demand improved electrode structures. This invention pertains to GDEs and gas diffusion media with new structures for systems using membrane electrode assemblies (MEAs), and automated methods of manufacture that lend themselves to continuous mass production. Unexpected improvements in gas and vapor transport through the electrode are realized by incorporating a new dispersion process in the construction, reformulating the applied mix with solution additives, and creating a novel coating structure on a conductive web. Furthermore, combining these changes with a judicious choice in coating methodology allows one to produce these materials in a continuous automated fashion.

6103077, Aug 15, 2000

Oct 30, 1998

9/184089

Michael DeMarinis - Upton MA
Emory S. De Castro - Nahant MA
Robert J. Allen - Saugus MA
Khaleda Shaikh - Woburn MA

De Nora S.p.A.

C25B 1100

20429007

Gas Diffusion Electrodes (GDES) play a pivotal role in clean energy production as well as in electrochemical processes and sensors. These gas-consuming electrodes are typically designed for liquid electrolyte systems such as phosphoric acid and alkaline fuel cells, and are commercially manufactured by hand or in a batch process. However, GDEs using the new electrolytes such as conductive polymer membranes demand improved electrode structures. This invention pertains to GDEs and gas diffusion media with new structures for systems using membrane electrode assemblies (MEAs), and automated methods of manufacture that lend themselves to continuous mass production Unexpected improvements in gas and vapor transport through the electrode are realized by incorporating a new dispersion process in the construction, reformulating the applied mix with solution additives, and creating a novel coating structure on a conductive web. Furthermore, combining these changes with a judicious choice in coating methodology allows one to produce these materials in a continuous, automated fashion.