H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/10 (2006.01) H01M 4/00 (2006.01) H01M 4/86 (2006.01) H01M 4/90 (2006.01) H01M 8/02 (2006.01) H01M 8/08 (2006.01)
Patent
CA 2392115
Fuels cells, electrode assemblies, and electrodes that comprise silicon and/or sol-gel derived support structures, as well as to methods relating thereto, are disclosed herein. In one embodiment, the invention is directed to an electrode assembly adapted for use with a fuel cell comprises: an anode derived from a first planar silicon substrate; an electrolyte; a cathode derived from a second planar silicon substrate; wherein the anode and the cathode are parallel to each other and separated by an interstitial region comprising the electrolyte. In another embodiment, the invention is directed to electrode adapted for use with a fuel cell, wherein the electrode comprises a silicon substrate that functions as a current conductor, wherein the silicon substrate has a plurality of pores that define pore surfaces, wherein at least a portion of the pore surfaces have a catalyst thereon, wherein the catalyst is derived from one or more metallic precursors chemisorbed onto at least the pore surfaces. In another embodiment, an electrode comprising a sol-gel derived support structure that functions as a current conductor, wherein the sol-gel derived support structure has a plurality of pores that define pore surfaces, wherein at least a portion of the pore surfaces have a catalyst thereon, wherein the catalyst is derived from one or more metallic precursors chemisorbed onto at least the pore surfaces is disclosed.
L'invention concerne des piles à combustible, des ensembles électrodes et des électrodes qui renferment du silicium et/ou des structures de soutien dérivées de sol-gel, ainsi que de procédés associés. Dans un mode de réalisation, l'invention concerne un ensemble électrodes conçu pour être utilisé avec une pile à combustible, qui comporte une anode dérivée d'un premier substrat de silicium planaire; un électrolyte; une cathode dérivée d'un second substrat de silicium planaire. L'anode et la cathode sont parallèles et séparées par une zone interstitielle renfermant l'électrolyte. Dans un autre mode de réalisation, l'invention concerne une électrode conçue pour être utilisée avec une pile à combustible, ladite électrode comportant un substrat de silicium fonctionnant comme conducteur de courant. Le substrat de silicium comporte plusieurs pores qui définissent les surfaces de pores. Au moins une partie desdites surfaces est pourvue d'un catalyseur, ce dernier étant dérivé d'au moins un précurseur métallique chimisorbé sur au moins les surfaces de pores.
Chan Chung M.
Cooke Aaron M.
Mallari Jonathan C.
Nelson Craig E.
Ohlsen Leroy J.
Neah Power Systems Inc.
Ridout & Maybee Llp
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