Integrated bipolar plate used for solid oxide fuel cell

A solid oxide and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as increasing the difficulty of manufacturing, hindering the development of fuel cells, reducing the efficiency of fuel cells, etc., and achieving the effect of surface treatment optimization

Pending Publication Date: 2017-10-24
上海中弗新能源科技股份有限公司
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  • Application Information

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Problems solved by technology

This reduces the efficiency of the fuel cell, and at the same time has a certain impact on the performance of the fuel cell. In addition, it also increases the volume and weight of the fuel cell, increases the difficulty of manufacturing, and increases the manufacturing cost. Technical bottlenecks have seriously hindered the development of fuel cells in many ways

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  • Integrated bipolar plate used for solid oxide fuel cell

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0018] See figure 1 , An integrated bipolar plate for solid oxide fuel cells, comprising a substrate 3 and a surface coating. The surface of the substrate 3 is provided with a gas flow channel 1, and the edge of the substrate 3 is provided with a long waist hole 2 for Gas in and out of the same pole.

[0019] The conductivity of the substrate 3 and the coating is greater than 1S·cm -1 . The coating is a layer of metal oxide covering the ...

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Abstract

The invention discloses an integrated bipolar plate used for a solid oxide fuel cell. The integrated bipolar plate comprises a substrate and a surface coating; a gas channel is formed in the surface of the substrate; and long-waist-shaped holes are formed in the edge of the substrate for allowing homopolar gas to come in and go out. By integrating parts, such as a positive electrode gas channel frame, a negative electrode gas channel frame, a partition plate, nickel foam, a silver net, a gas channel plate and the like, on a metal plate named as the bipolar plate, design optimization is performed in structure, and optimization is also performed in the aspects of material selection, processing process, surface treatment and the like.

Description

Technical field [0001] The invention relates to fuel cell technology, in particular to an integrated bipolar plate for solid oxide fuel cells. Background technique [0002] The connection between the single cells of solid oxide fuel cells (hereinafter referred to as "bipolar plates") is subject to the constraints of processing technology and material costs, and has always been a difficulty in the manufacturing technology of high-temperature fuel cell stacks. The bipolar plate is one of the core components of the fuel cell stack system, its mass accounts for about 80% of the entire stack system, and its manufacturing cost accounts for about 45% of the total manufacturing cost of the entire fuel cell stack system. The bipolar plate mainly includes two parts: a substrate and a flow field; among them, the main function of the substrate is to conduct electricity and collect electricity, and the main function of the flow field is to block the positive and negative gases and guide the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258
CPCH01M8/0258Y02E60/50
Inventor 秦江阳张秀成陈德强
Owner 上海中弗新能源科技股份有限公司
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