Fuel cell, components and systems

Details Fuel cell, components and systems Fuel cell, components and systems

2004-04-22

2009-02-10

Kalafut, Stephen J. (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S010000, C429S006000, C429S047000, C429S047000, C429S047000

Reexamination Certificate

active

07488547

ABSTRACT:
Alkali fuel cells, systems, and related methods, and flow-through, high-surface area electrodes, are employed to generate electricity. The electrode can include a porous substrate comprising a first side for fluid ingress, a second side for fluid egress, and a plurality of walls oriented in different directions between the first and second sides, with voids defined between the walls, which can include surfaces and micro-scale pores. A thin film comprising a catalytic material can be disposed on the surfaces. A fuel/electrolyte mixture can be flowable generally from the first side, through the voids and the pores of the substrate and in contact with the thin film, and to the second side. Additives can be included for refreshing the electrolyte and/or the electrode. A water/thermal/pressure management system includes a permeable membrane from which water can be removed from a fluid while retaining fuel and/or electrolyte in the fluid. The electrolyte can include an additive that cleans the electrodes. A refresh cycle can be implemented in which one or more electrodes are operated in a mode that refreshes catalytic material of the electrode.

REFERENCES:
patent: 4522895 (1985-06-01), Shigeta et al.
patent: 4529670 (1985-07-01), Findl
patent: 4783381 (1988-11-01), Tytgat et al.
patent: 5023150 (1991-06-01), Takabayashi
patent: 5185218 (1993-02-01), Brokman et al.
patent: 5364711 (1994-11-01), Yamada et al.
patent: 6322915 (2001-11-01), Collins et al.
patent: 6329089 (2001-12-01), Roberts et al.
patent: 6365291 (2002-04-01), Margiott
patent: 6720105 (2004-04-01), Ohlsen et al.
patent: 6727015 (2004-04-01), Pütter et al.
patent: 7070879 (2006-07-01), Mardilovich et al.
patent: 2002/0028372 (2002-03-01), Ohlsen et al.
patent: 2003/0194598 (2003-10-01), Chan
patent: 199 02 970 (2000-07-01), None
patent: 1 093 176 (2001-04-01), None
V. A. Tracey, “Production Of Porous Nickel For Alkaline-Battery And Fuel-Cell Electrodes: Practical And Economic Considerations”,Powder Metallurgy,vol. 8, No. 16, pp. 241-253 (1965), (no month).
Supplementary European Search Report From Corresponding European Application No. 04 750 568.0, Oct. 16, 2008 (7 pgs.).

Affiliated with

Also associated with

Rating

Fuel cell, components and systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel cell, components and systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell, components and systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4138747