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Air-cooled fuel cell stack

A fuel cell stack, air-cooled technology, applied to fuel cells, circuits, electrical components, etc., to achieve high output voltage, cost reduction, and low output current

Active Publication Date: 2021-11-23
ZHEJIANG TIANNENG HYDROGEN ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The fuel cell stacks disclosed in the above two patent applications are directly stacked after several fuel cell cells are separated by proton exchange membranes. Using this method to stack stacks not only has high technical requirements for the stacking process, but also Once the stack is complete, the number of fuel cell cells in the stack cannot be changed

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  • Air-cooled fuel cell stack
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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] Such as Figure 1-5 As shown, three stacked and assembled modules 100 form an electric stack. In order to prevent the loss of electric energy and prevent the occurrence of electric shock accidents, it is necessary for the upper pressing plate 200 and the lower pressing plate 300 that are in direct contact with the external environment to be made of insulating materials; Each module 100 includes a lower pressure plate 300 and an upper pressure plate 200 made of insulating materials, and there are nine accommodation cavities 400 for accommodating fuel cell cells 500 between the lower pressure plate 300 and the upper pressure plate 200, and the nine accommodation cavities 400 form 3×3 arrangement. Each module 100 is equipped with multiple fuel cell cells 500, which can further reduce the cost and reduce the difficulty of stack assembly.

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Abstract

The invention discloses an air-cooled fuel cell stack, and the fuel cell stack comprises a plurality of stacked and assembled modules, wherein each module comprises a lower pressing plate and an upper pressing plate, and a plurality of accommodating cavities for accommodating single cells of a fuel cell are arranged between the lower pressing plate and the upper pressing plate; each single fuel cell is provided with a first hydrogen inlet, a first hydrogen outlet, a first air inlet and a first air outlet; correspondingly, each accommodating cavity is provided with a second hydrogen inlet, a second hydrogen outlet, a second air inlet and a second air outlet, and the air-cooled fuel cell stack further comprises fasteners for fixing the modules together. According to the air-cooled fuel cell stack disclosed by the invention, the fuel cells adopt modular design, the assembly process of the fuel cells is simplified, the number of the fuel cells stacked into the stack can be freely adjusted according to requirements, and after the fuel cells are assembled into the stack, the number of the fuel cells can still be adjusted.

Description

technical field [0001] The invention relates to the field of fuel cell stacks, in particular to an air-cooled fuel cell stack. Background technique [0002] The fuel cell stack is formed by stacking multiple fuel cell cells. The structure of the stack largely determines whether the fuel cell can dissipate heat well, and whether the exhaust gas and moisture generated after the reaction can be discharged to ensure fuel The battery is working normally. [0003] The stack structure of the existing fuel cell, such as a proton exchange membrane fuel cell bipolar plate structure and a fuel cell stack disclosed in Chinese Patent Publication No. CN207233866U, is formed by stacking membrane electrodes and bipolar plates in sequence. There is also a cathode strengthening layer between the cathode of the electrode and the cathode of the bipolar plate. The bipolar plate is formed by laminating and bonding the anode plate and the cathode plate; the front of the anode plate is provided wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/2457H01M8/247H01M8/2475H01M8/2484
CPCH01M8/2457H01M8/247H01M8/2475H01M8/2484Y02E60/50
Inventor 孙健曹寅亮范冬琪徐乃涛陈泽民徐鹏杰林滨
Owner ZHEJIANG TIANNENG HYDROGEN ENERGY TECH CO LTD
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