Planar membraneless microchannel fuel cell

A fuel cell and electrolyte technology, applied in the direction of aqueous electrolyte fuel cells, fuel cells, fuel cell additives, etc., can solve the problem of low thermodynamic potential
CN101084364AInactive Publication Date: 2007-12-05CORNELL RES FOUNDATION INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CORNELL RES FOUNDATION INC
Publication Date
2007-12-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

A microfluidic membraneless flow cell formed with multiple acidic / alkaline electrolyte solutions. The flow cell can be adapted to provide a dual electrolyte H2 / O2 fuel cell that generates thermodynamic potentials of up to 1.943 V or possibly greater. The selected fuel can be hydrogen dissolved in 0.1 M KOH, and the selected oxidant can be oxygen dissolved in 0.1 M H2SO4. Individual fuel cells can be combined to form fuel cell stacks to generate increased power output. Furthermore, microchannels of varying dimensions may be selected, including thickness variations, and different flow rates of acid / base electrolyte solutions can be applied to satisfy predetermined power generation needs. Some (micro-) fuel cell embodiments can be formed with silicon microchannels or fixed length and variable width and height, and can be used with hydrogen or formic acid as a fuel and oxygen as an oxidant, each dissolved in different acid / base electrolyte solutions. Micro-fuel cells are also provided which can be designed to generate different power levels for various applications including portable electronic devices such as wireless communication handsets and cellular telephones.
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Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is a continuation-in-part of US Patent Application Serial No. 11 / 150,622, filed June 10, 2005, which claims US Provisional Patent Application Serial Nos. 60 / 579,075, filed June 10, 2004, and November 2004 Priority to US Provisional Patent Application Serial No. 60 / 629,440, filed on March 19, both of which are hereby incorporated by reference in their entirety.

[0003] Statement Regarding Federally Funded Research or Development

[0004] The invention described herein was work performed under U.S. Army Research Office contract DAAD19-03-C-0100, National Science Foundation (NSF) contract ACT-0346377, and NSF funded ECS-0335765 made in and subject to the provisions of Public Law 96-517 (35 U.S.C. §202), in which the contractor has elected to reserve rights. technical field

[0005] The present invention relates generally to microfluidic flow batteries, and more particularly to electrolyte mixtures that ma...

Claims

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