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Closed alkaline electrolyte tank and metal air fuel cell system

A fuel cell system and electrolyte tank technology, which is applied in fuel cells, fuel cell additives, fuel cell half-cells and primary battery half-cells, etc., and can solve the problem of easy acidification of alkaline electrolyte and easy blockage of precipitation etc. to achieve the effects of high electrochemical reaction efficiency, enhanced circulation flow velocity, and prevention of evaporation loss

Pending Publication Date: 2021-11-02
郑州佛光发电设备股份有限公司 +1
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Problems solved by technology

[0005] In order to solve the problems that the existing alkaline electrolyte is easy to acidify, and the precipitation generated by the electrochemical reaction is easy to block the inlet and outlet of the electrolyte tank, the present invention innovatively provides a closed alkaline electrolyte tank, which can effectively improve the metal-air fuel cell. Excellent work efficiency, significantly reduce the acidification of the electrolyte during storage, and prolong the service life of the electrolyte

Method used

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  • Closed alkaline electrolyte tank and metal air fuel cell system
  • Closed alkaline electrolyte tank and metal air fuel cell system
  • Closed alkaline electrolyte tank and metal air fuel cell system

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Embodiment Construction

[0028] The airtight alkaline electrolyte tank and the metal-air fuel cell system provided by the present invention will be explained and illustrated in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, this embodiment specifically discloses a closed alkaline electrolyte box, including a box body 1, a floating top ball layer 2, a first filter layer 3 and a second filter layer 4, a floating top ball layer 2, a second filter layer A filter layer 3 and a second filter layer 4 are sequentially arranged inside the box body 1 from top to bottom. The floating top ball layer 2 is composed of several floating top small balls 20, the floating top small balls can be plastic airbags or rubber airbags, and the floating top small ball layer 2 is used to suppress the volatilization of moisture in the electrolyte; the floating top small balls 20 The surface of the electrolyte inside the liquid tank forms a sealing surface, which isolates the entir...

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Abstract

The invention discloses a closed alkaline electrolyte box and a metal air fuel cell system. The closed alkaline electrolyte box comprises a box body, a floating roof ball layer, a first filter layer and a second filter layer, wherein the floating roof ball layer, the first filter layer and the second filter layer are sequentially arranged in the box body from top to bottom; the floating roof ball layer is used for inhibiting volatilization of moisture in an electrolyte; the first filter layer is of a fence structure, and the second filter layer is of a sieve pore structure; the diameter of a floating roof ball of the floating roof ball layer is greater than the aperture of the first filter layer, and the aperture of the first filter layer is greater than the aperture of the second filter layer; and a liquid outlet and a liquid return port are formed in the box body, the liquid return port is located above the floating roof ball layer, and the liquid outlet is located below the second filter layer. According to the invention, the working efficiency of the metal air fuel cell can be effectively improved, the acidification of the electrolyte in a storage process is remarkably reduced, and the service life of the electrolyte is prolonged.

Description

technical field [0001] The invention relates to the technical field of metal-air fuel cells, and more specifically, the invention relates to a closed alkaline electrolyte tank and a metal-air fuel cell system. Background technique [0002] During the use of the metal-air fuel cell, since the metal fuel cell module itself does not have an electrolyte storage device, the electrolyte tank is required to store the electrolyte, and the circulation pump is used to ensure the circulation of the electrolyte in the battery module. The electrolyte is transported to the electrode, and the electrode reaction is carried out to provide electric energy. [0003] The metal-air fuel cell electrochemical reaction process will produce precipitation, which will reduce the fluidity and conductivity of the alkaline electrolyte, and even block the inlet and outlet of the alkaline electrolyte tank, thereby reducing the service life and efficiency of the metal fuel cell. At the same time, during th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04186H01M8/04276H01M12/06B01D29/58
CPCH01M8/04186H01M8/04208H01M8/04276H01M12/06B01D29/58Y02E60/50
Inventor 孙朋张钧张博强王瑞智冯天培张涛
Owner 郑州佛光发电设备股份有限公司
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