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David Coimbra Phones & Addresses

  • Buffalo, NY
  • Amherst, NY

Resumes

Resumes

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David Coimbra

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David Coimbra

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Work:

Comunicador

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David Coimbra

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Location:
United States

Publications

Us Patents

Anode-Supported Solid Oxide Fuel Cells Using A Cermet Electrolyte

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US Patent:
7498095, Mar 3, 2009
Filed:
Nov 30, 2004
Appl. No.:
10/999735
Inventors:
Caine Finnerty - Buffalo NY, US
David Coimbra - Buffalo NY, US
Assignee:
NanoDynamics Energy, Inc. - Buffalo NY
International Classification:
H01M 8/12
C04B 35/64
US Classification:
429 33, 429 44, 264618
Abstract:
Novel solid oxide fuel cell (SOFC) article and method of manufacture with improved properties at lower costs. The structural features and methods involve fabricating an anode (i. e. , fuel electrode); applying a cermet electrolyte, which includes a mixture of ceramic and electrochemically active substances, and applying a cathodic layer. The cermet electrolyte containing a small amount of transition metal reduces the thermal expansion mismatch with the anode, and allows for a graded structure of the electrochemically active substances across the anode/electrolyte structure. Under operating conditions, a dense electrolyte and metal oxide sub-layer exist on the oxidized side (cathode side); while the other side of the electrolyte (reducing side) is made of a porous sub-layer containing transition metal. The tailoring of the amounts of metal present in the anode and the cermet electrolyte allows for greater power output and enhanced electrochemical performance, while maintaining the structural integrity and reliability of the SOFC.

Solid Oxide Fuel Cells With Novel Internal Geometry

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US Patent:
20050042490, Feb 24, 2005
Filed:
Aug 3, 2004
Appl. No.:
10/910026
Inventors:
Caine Finnerty - Buffalo NY, US
David Coimbra - Buffalo NY, US
International Classification:
H01M008/12
H01M004/86
H01M004/88
US Classification:
429031000, 429032000, 429045000, 502101000
Abstract:
Fuel electrode-anode supported type solid oxide fuel cells (SOFC) comprise novel fuel electrode design with improved mechanical and electrochemical properties. The novel supporting anodes comprise a plurality of internal longitudinal elevations or bosses projecting inwardly into the central bore of the tubular body for structural reinforcement of the entire cell, increasing electrode surface area, optimizing the anode electronic conductivity, and facilitating the mounting of the cell into a SOFC assembly system (e.g., cell stack). The SOFCs of the invention contemplate a range of tubular configurations, including cylindrical and polygonal shapes having at least three surfaces. Low-cost manufacturing routes are also disclosed, whereby the protruding bosses in the anode support do not require additional processing steps compared to conventional forming techniques.

Isbn (Books And Publications)

Dexheimer: 800 Noites De Junho

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Author

David Coimbra

ISBN #

8585418230

David Coimbra from Buffalo, NY, age ~51 Get Report