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Fuel cell stack and fuel cell with same

A fuel cell stack and fuel cell technology, which is applied to fuel cell components, fuel cells, power system fuel cells, etc., can solve problems such as delay in time and insufficient battery cooling, and achieve improved compactness, improved power density, The effect of the compact structure of the fuel cell

Active Publication Date: 2019-11-12
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a fuel cell stack, which is provided with one or more battery units stacked together, and each battery unit is composed of a membrane electrode and a unipolar plate with both front and back sides; the structure is further The compactness of the fuel cell is improved, and at the same time, the problem of insufficient and untimely cooling of the battery is solved through the heat exchange channel perpendicular to the plane of the fuel cell

Method used

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  • Fuel cell stack and fuel cell with same
  • Fuel cell stack and fuel cell with same
  • Fuel cell stack and fuel cell with same

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the ...

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Abstract

The invention provides a fuel cell stack. The fuel cell stack is provided with one or more stacked cell units, wherein each cell unit is composed of a membrane electrode and a unipolar plate with front and reverse surfaces. Compared with the prior art, the fuel cell stack has the advantages that the compactness of a fuel cell is further improved through the structure; meanwhile, the problem that cell cooling of the fuel cell at high power is not enough and not timely in the prior art is also solved through the design of cooling medium channels; and the heat exchange uniformity is also improvedto a certain extent.

Description

technical field [0001] The invention relates to the battery field, in particular to a fuel cell and a fuel cell stack with the fuel cell. Background technique [0002] A fuel cell is an energy converter that directly converts the chemical energy of "fuel gas" into direct current electrical energy. In application scenarios such as passenger cars, the specific power (volume power density) of fuel cells is one of the key parameters. The basic structure of the current conventional metal bipolar plate proton exchange membrane fuel cell (hydrogen fuel cell) includes membrane electrodes, oxygen channels, hydrogen channels and cooling water channels, in which two unipolar plates are welded together to form a bipolar plate, The two sides of the bipolar plate flow hydrogen and oxygen respectively, and the channel formed in the middle flows the cooling medium. Obviously, the thickness of the cell depends on the height of the reactant gas channel and the height of the cooling medium c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/026H01M8/0267H01M8/1004H01M8/2457H01M8/2483
CPCH01M8/026H01M8/0267H01M8/1004H01M8/2457H01M8/2483H01M2250/20Y02E60/50
Inventor 张永张威肖彪
Owner GREE ELECTRIC APPLIANCES INC
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