Aging device and aging method for gas diffusion layer of proton exchange membrane fuel cell
A gas diffusion layer and proton exchange membrane technology, applied in fuel cells, measuring devices, electrical components, etc., can solve the problems affecting the stress and strain distribution of other layers and the complex mechanical properties of the gas diffusion layer, so as to achieve easy constant stress and easy maintenance , the effect of simple operation
Pending Publication Date: 2020-01-03
JILIN UNIV
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Problems solved by technology
However, in actual research, the gas diffusion layer is the most rigid layer in the membrane electrode structure, and its mechanical properties are easily ignored. However, studies have shown that the mechanical properties of the gas diffusion layer are complex and will affect the stress-strain distribution of other layers
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[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0047] Such as figure 1 As shown, the present invention provides an aging device for the gas diffusion layer of a proton exchange membrane fuel cell, which mainly includes: a first end plate 110 , a second end plate 120 , a plurality of separators 130 and a plurality of force-marking bolts 140 .
[0048] The first end plate 110 is arranged horizontally, and the second end plate 120 is parallel and symmetrically arranged with the first end plate 110; a plurality of separators 130 are stacked in parallel between the first end plate 120 and the second end plate 130; and a plurality of forces There are bolts connected between the first end plate 110 and the second end plate 120. Wherein, the separator 130 is made of a metal plate, the uppermost separator 130 abuts against the lo...
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The invention discloses an aging device and an aging method for a gas diffusion layer of a proton exchange membrane fuel cell. The aging device comprises: a first end plate; a second end plate which is parallel and symmetrical with the first end plate; a plurality of separating sheets which are parallelly stacked between the first end plate and the second end plate; and a plurality of force display bolts connected between the first end plate and the second end plate, wherein the each force display bolt comprises: a first bolt, wherein one end of the first bolt is fixedly provided with a bolt head, the first bolt vertically passes through the first end plate, the bolt head abuts against the top of the first end plate; a second bolt which vertically passes through the second end plate, is coaxial and spaced with the first bolt, and is provided with a thread; a nut which is connected to the second bolt in a matching way and abuts against the bottom of the second end plate; a spring arranged between the first bolt and the second bolt, wherein an outer wall of the first bolt is provided with a scale mark; and a scale of which one end is fixedly connected to the second bolt and the otherend extends to the position of the scale mark.
Description
technical field [0001] The invention belongs to the technical field of performance testing of a proton exchange membrane fuel cell, and in particular relates to an aging device and an aging method for a gas diffusion layer of a proton exchange membrane fuel cell. Background technique [0002] Proton exchange membrane fuel cell is one of the most promising new energy sources for vehicles, but its short service life has become the main reason hindering its global commercialization. The failure of this type of fuel cell is mainly concentrated in the membrane electrode structure, mainly including mechanical damage, chemical degradation, thermal degradation, etc., all related to the stress and strain state of the membrane electrode material. Among them, the gas diffusion layer is composed of conductive porous materials, which play multiple roles such as supporting the catalytic layer, collecting current, conducting gas and discharging water. It realizes the redistribution of rea...
Claims
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Login to View More IPC IPC(8): G01N1/28H01M8/1004
CPCG01N1/28G01N1/286H01M8/1004Y02E60/50
Inventor 肖阳祁锦轩李子樵马骁远张文华
Owner JILIN UNIV