Sealing structure of fuel cell and assembly method of fuel cell stack
A fuel cell and sealing structure technology, which is applied to fuel cell components, fuel cells, sealing/supporting devices, etc., can solve problems such as the sliding dislocation assembly pressure of sealing gaskets, so as to reduce assembly pressure, possibility and load. Effect
Active Publication Date: 2021-02-02
航天氢能(上海)科技有限公司 +1
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Problems solved by technology
[0005] The object of the present invention is to provide a fuel cell sealing structure and its assembly method, which can solve the sliding misalignment of the sealing gasket during assembly or later use And the problem of high assembly pressure of traditional rectangular sealing ring
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[0023] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.
[0024] The fuel cell used in the present invention is a stack formed by stacking several battery cells, and the battery cell includes two pole plates and a membrane electrode arranged between the two pole plates. The sealing structure of the present invention includes: polar plates, membrane electrodes, polar plate sealing gaskets, and cooling liquid sealing gaskets 6 .
[0025] Such as figure 1 As shown, the pole plate includes an anode plate 1 and a cathode plate 2 ; the plate sealing gasket includes an anode sealing gasket 4 and a cathode sealing gasket 5 . The anode plate 1 and the cathode plate 2 are arranged symmetrically.
[0026] The edge of the anode plate 1 has an anode plate sealing rib 7 , which is a groove formed by the edge of the anode plate 1 being concave toward the side of the membrane electrode 3 . An anode plate seal...
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Abstract
The invention discloses a sealing structure of a fuel cell and an assembly method of a fuel cell stack. The sealing structure comprises a polar plate, a film electrode, a polar plate sealing washer and a cooling liquid sealing washer, wherein sealing ribs are arranged on the edge of the polar plate; a polar plate sealing groove is formed between two rows of sealing ribs; the polar plate sealing gasket is arranged in the polar plate sealing groove; the polar plate sealing gasket is provided with a polar plate sealing gasket glue line groove, glue is applied into the glue line groove, and the polar plate sealing gasket is bonded with the polar plate; two bulges in contact with the film electrode are arranged on one side, facing the film electrode, of the polar plate sealing gasket; the cooling liquid sealing gasket is arranged between the adjacent polar plates of the two battery monomers; two sides of the cooling liquid sealing washer are in a mallet shape so as to be matched with the sealing ribs; the cooling liquid sealing washer is provided with two cooling liquid sealing washer glue line grooves, the cooling liquid sealing washer glue line grooves are formed in the faces, makingcontact with the adjacent polar plates, of the cooling liquid sealing washer respectively, and the cooling liquid sealing washer and the polar plates are bonded by applying glue into the cooling liquid sealing washer glue line grooves.
Description
technical field [0001] The invention relates to the technical field of fuel cells, in particular to a sealing structure of a fuel cell and an assembly method of a fuel cell stack. Background technique [0002] Proton exchange membrane fuel cell is a new type of power generation device that can directly convert the chemical energy of fuel into electrical energy by electrochemical means at room temperature. It has the advantages of high energy conversion rate, no pollution, and rich sources of raw materials. , thermal power, and nuclear energy are the fourth generation of power generation technology. As a new generation of power generation technology, fuel cells can be widely used in portable mobile power, electric vehicles, power stations, aerospace and military ships and other aspects. [0003] Proton exchange membrane fuel cells are mainly composed of membrane electrodes and plates. Membrane Electrode Assembly (MEA for short) is the internal core component of a proton exc...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M8/0276H01M8/0286H01M8/2404
CPCH01M8/0276H01M8/0286H01M8/2404Y02E60/50
Inventor 白清友孙毅贾古寨李郭威张锐邓呈维
Owner 航天氢能(上海)科技有限公司