Method and apparatus for reducing reactant crossover in a liquid

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

429 40, 429 42, 429 44, H01M 810

Patent

active

058741828

ABSTRACT:
In an electrochemical fuel cell, a sufficient quantity of catalyst, effective for promoting the reaction of reactant supplied to an electrode, is disposed within the volume of the electrode so that a reactant introduced at a first major surface of the electrode is substantially completely reacted upon contacting the second major surface. Crossover of reactant from one electrode to the other electrode through the electrolyte in an electrochemical fuel cell is thereby reduced.

REFERENCES:
patent: 4457987 (1984-07-01), Horiba et al.
patent: 5035962 (1991-07-01), Jensen
patent: 5068161 (1991-11-01), Keck et al.
patent: 5132193 (1992-07-01), Reddy et al.
patent: 5185218 (1993-02-01), Brokman et al.
patent: 5277996 (1994-01-01), Marchetti et al.
patent: 5316871 (1994-05-01), Swarthirajan et al.
patent: 5409785 (1995-04-01), Nakano et al.
patent: 5472799 (1995-12-01), Watanabe
patent: 5501915 (1996-03-01), Hards et al.
patent: 5523177 (1996-06-01), Kosek et al.
patent: 5573866 (1996-11-01), Van Dine et al.
patent: 5672439 (1997-09-01), Wilkinson et al.
Surampudi et al., "Advances in direct oxidation methanol fuel cells", Journal of Power Sources, vol. 47, pp. 377-385 (1994). (Month Unknown).
Pu et al., "A Methanol Impermeable Proton Conducting Composite Electrolyte System", J. Electrochem. Soc., vol 142, No. 7, pp. L119-L120. (Jul. 1995).
"Dependence of performance of solid polymer electrolyte fuel cells with low platinum loading on morphologic characteristics of the electrodes", J. Applied Electrochem., vol. 21, No. 7, pp. 597-605, Ticianelli et al., Jun. 1991.
"Recent Advances in PEM Liquid-Feed Direct Methanol Fuel Cells", 11.sup.th Annual Battery Conference Applications and Advances, pp. 113-122, Narayanan et al., 1996. (Month Unknown).
"Effect of the Electrode Structure on the electrocatalytic Oxidation of Low-Weight Alcohols. Applications to the Direct Alcohol Fuel Cell", Proceedings of the Electro-chemical Society, vol. 94-23, pp. 275-293, Laborde et al., 1994. (Month Unknown).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for reducing reactant crossover in a liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for reducing reactant crossover in a liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing reactant crossover in a liquid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-305100

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.