Stack silicon-base miniature fuel celles and manufacturing method

A fuel cell stack and fuel cell technology, applied in the direction of fuel cell groups, fuel cells, chemical instruments and methods, etc., can solve the problems of low output voltage of a single cell, small range of output current density, large packaging volume ratio, etc., and achieve battery The effect of small internal resistance, large performance improvement, and small package volume

Inactive Publication Date: 2009-04-29
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low output voltage, small output current density range, and large package volume ratio of the above-mentioned micro-fuel cells, the present invention proposes a stacked micro-fuel cell stack and its manufacturing method

Method used

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  • Stack silicon-base miniature fuel celles and manufacturing method
  • Stack silicon-base miniature fuel celles and manufacturing method
  • Stack silicon-base miniature fuel celles and manufacturing method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0033] The cross-sectional structure of a typical embodiment of the silicon-based micro-fuel cell stack to which the present invention belongs is as follows: figure 1 As shown, the split structure of each component is as follows figure 2 shown. A stacked silicon-based micro fuel cell stack, including a single cell stack composed of two fuel cell single cells, a sealing assembly, a clamp assembly and a fluid conduit. The two fuel cells include three silicon plates and two membrane electrodes, the outer plate (11), the inner plate (13) and the membrane electrode (21) to form a single cell (01), the outer plate ( 12), the inner pole plate (13) and the membrane electrode (22) form a single cell (02), wherein the inner pole plate (13) is shared by two fuel cell single cells, and the single cell (01) and the single cell (02) form a single cell stack ...

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Abstract

Stacked silicon-based micro fuel cell group and its production method belong to the field of micro-energy and micro-machining areas. It includes the single cell stacking, sealing component, claming component and fluid catheter. Two or more fuel cell single batteries form stack, which order is: the second outer plate (12), the second membrane electrode (22), the inner plate (13), the first membrane electrode (21) and the first outer plate (11), and use the clamping and sealing components to seal package. The production method includes processing silicon plate and seal packaging of different component parts, using silicon micro-machined to produce a drainage channel, packaging the single cell stack. The invention has small resistance of battery, small package size, flexible flow graphic design, various series and parallel forms, which can get a larger output current and voltage when a small increase in the volume of cases.

Description

technical field [0001] The invention relates to a stacked silicon-based micro-fuel cell group and a manufacturing method thereof, which belong to the field of micro-energy and micro-machining. Background technique [0002] Micro fuel cell is a device that directly converts the chemical energy of fuel (such as methanol, hydrogen, etc.) Laptops, PDAs, digital cameras), wireless communication networks (such as mobile phones, GPS, sensor network nodes), microsystems (such as systems on chips, SOC, microsystems composed of MEMS devices) and other aspects have outstanding advantages. The silicon-based micro-fuel cells produced by mature MEMS technology have the advantages of high precision, good repeatability, and low mass production cost, and are expected to be integrated with other MEMS devices and IC circuits to promote self-supply, low-cost, high-performance micro-fuel cells. system implementation. [0003] At present, there is still a certain gap between the performance of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/24B81B7/00B81C1/00B81C5/00B81C99/00H01M8/249
CPCY02E60/50Y02P70/50
Inventor 王晓红钟凌燕姜英琪
Owner TSINGHUA UNIV
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