Fuel cell

A fuel cell and first flow channel technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as increasing auxiliary power consumption and complex control strategies, and achieve the effects of reducing content, improving overall performance, and increasing temperature

Pending Publication Date: 2021-11-02
CHINA AUTOMOTIVE INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 3. Add a heater at the end plate, use the heater to directly heat the end of the fuel cell, or use the heater to heat the heat transfer medium, and use the heat transfer medium to heat the end of the fuel cell, which will increase the auxiliary power consumption , and requires a complex control strategy

Method used

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Embodiment Construction

[0030] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0031] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordin...

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Abstract

The invention relates to the technical field of cells, and especially relates to a fuel cell. The fuel cell comprises a fuel cell body and a heating plate, the heating plate is arranged at the end of the fuel cell body, a cooling medium pipeline is arranged in the fuel cell body, a first flow channel is formed in the heating plate, the liquid inlet of the first flow channel is communicated with the outlet of the cooling medium pipeline, and the liquid outlet of the first flow channel is used for discharging the cooling medium in the first flow channel. The temperature of the end cell of a fuel cell stack can be increased, so that the liquid water content of the end cell is reduced, and the performance of the fuel cell is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a fuel cell. Background technique [0002] A fuel cell is an electrochemical energy conversion device, where the hydrogen gas fed to the anode undergoes an oxidation reaction, and the oxygen gas fed to the cathode undergoes a reduction reaction and generates a large amount of heat. In order to keep it at normal working temperature (below 80°C), cooling water or refrigerant will be supplied in the cooling channel to cool the fuel cell stack. The fuel cell stack is composed of dozens to hundreds of bipolar plates and membrane electrodes stacked on top of each other. The single cell arranged in the middle of the stack will exchange and absorb heat from the adjacent cells on both sides, and the temperature is relatively high. The single cells located at both ends of the stack have a lower temperature due to heat exchange and radiation heat dissipation with the outside world. This...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04029
CPCH01M8/04029Y02E60/50
Inventor 李丰军周剑光王英刘冬安贾古寨
Owner CHINA AUTOMOTIVE INNOVATION CORP
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