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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

Inactive Publication Date: 2007-12-05
CORNELL RES FOUNDATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it has been observed that the thermodynamic potential resulting from these single electrolyte systems remains relatively low

Method used

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  • Planar membraneless microchannel fuel cell
  • Planar membraneless microchannel fuel cell
  • Planar membraneless microchannel fuel cell

Examples

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Embodiment

[0113] Example: Fuel Cell Assembly

[0114] Having established that the proposed plate design generates laminar flow within the microchannels, the fabricated microchannels and electrodes were incorporated into fuel cell embodiments that illustrate various principles of the present invention, including providing insight into the system. Human control of parameters. Combine silicon microchannels in plexiglass cells with Kaptons on top or bottom of the microchannels  Align the base platinum electrodes and clamp them together using bolts as shown in Figures 5 and 6.

[0115] FIG. 6 is a view showing an example of a silicon microchannel flow cell configured as a micro fuel cell 600 . In fuel cell 600, silicon microchannels 505 are provided. The two input tubes 510, 515 provide fluid entering the silicon microchannel 505 from the same side (ie from the top side of the embodiment shown in Figure 6). In the embodiment shown in FIG. 6, two input tubes 510 and 515 are attached to...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D1/02H01M2/00
CPCH01M8/08H01M8/006H01M8/026H01M8/0289H01M8/04082H01M8/04186H01M8/083H01M8/086Y02E60/50H01M8/04
Inventor J·L·科恩D·J·沃尔普H·D·阿布鲁纳
Owner CORNELL RES FOUNDATION INC
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