Source: http://www.google.co.uk/patents/US7491458
Timestamp: 2014-04-17 04:02:36
Document Index: 239840637

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'art 1', 'application No. 2003801061464', 'Application No. 03809186', 'application No. 04794699']

Patent US7491458 - Active metal fuel cells - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsActive metal fuel cells are provided. An active metal fuel cell has a renewable active metal (e.g., lithium) anode and a cathode structure that includes an electronically conductive component (e.g., a porous metal or alloy), an ionically conductive component (e.g., an electrolyte), and a fluid oxidant...http://www.google.co.uk/patents/US7491458?utm_source=gb-gplus-sharePatent US7491458 - Active metal fuel cellsAdvanced Patent SearchPublication numberUS7491458 B2Publication typeGrantApplication numberUS 10/825,587Publication date17 Feb 2009Filing date14 Apr 2004Priority date10 Nov 2003Fee statusPaidAlso published asUS7781108, US7998626, US8361664, US20050100792, US20090286114, US20100273067, US20110269031, US20140004447, WO2005048385A2, WO2005048385A3Publication number10825587, 825587, US 7491458 B2, US 7491458B2, US-B2-7491458, US7491458 B2, US7491458B2InventorsSteven J. Visco, Yevgeniy S. Nimon, Bruce D. Katz, Lutgard C. De JongheOriginal AssigneePolyplus Battery CompanyExport CitationBiBTeX, EndNote, RefManPatent Citations (104), Non-Patent Citations (65), Referenced by (13), Classifications (20), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetActive metal fuel cellsUS 7491458 B2Abstract Active metal fuel cells are provided. An active metal fuel cell has a renewable active metal (e.g., lithium) anode and a cathode structure that includes an electronically conductive component (e.g., a porous metal or alloy), an ionically conductive component (e.g., an electrolyte), and a fluid oxidant (e.g., air, water or a peroxide or other aqueous solution). The pairing of an active metal anode with a cathode oxidant in a fuel cell is enabled by an ionically conductive protective membrane on the surface of the anode facing the cathode.
Composition mol % P2O5 26-55% SiO2 0-15% GeO2 + TiO2 25-50% in which GeO2 0-50% TiO2 0-50% ZrO2 0-10% M2O3 0 < 10% Al2O3 0-15% Ga2O3 0-15% Li2O 3-25% and containing a predominant crystalline phase composed of Li1+x(M,Al,Ga)x(Ge1−yTiy)2−x(PO4)3 where X≦0.8 and 0≦Y≦1.0, and where M is an element selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb and/or and Li1+x+yQxTi2−xSiyP3−yO12 where 0<X≦0.4 and 0<Y≦0.6, and where Q is Al or Ga.
CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to U.S. Provisional Patent Application No. 60/529,825 filed Dec. 15, 2003, titled ACTIVE METAL FUEL CELLS; and U.S. Provisional Patent Application No. 60/518,948 filed Nov. 10, 2003, titled BI-FUNCTIONALLY COMPATIBLE IONICALLY CONDUCTIVE COMPOSITES FOR ISOLATION OF ACTIVE METAL ELECTRODES IN A VARIETY OF ELECTROCHEMICAL CELLS AND SYSTEMS; the disclosures of which are incorporated herein by reference in their entirety and for all purposes.
SUMMARY OF THE INVENTION The present invention relates generally to active metal electrochemical devices. More particularly, this invention relates to active metal fuel cells.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a schematic illustration of an active metal anode structure incorporating an ionically conductive protective laminate composite membrane in accordance with the present invention.
CONCLUSION Although the foregoing invention has been described in some detail for purposes of clarity of understanding, it will be apparent that certain changes and modifications may be practiced within the scope of the invention. It should be noted that there are many alternative ways of implementing both the process and compositions of the present invention. Accordingly, the present embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein.
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