Fuel cell flow field plate with shell channel part
A fuel cell and flow field plate technology, applied in the direction of fuel cells, fuel cell components, battery electrodes, etc.
Active Publication Date: 2012-11-28
IND TECH RES INST
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0013] However, the aforementioned two existing technologies are designed in the form of through holes. In the practical manufacturing process, there must be a drilling alignment program. At the same time, the flow field surface and the flow channels on both sides of the non-reactive surface must be aligned to make the fluid flow smoothly.
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[0067] Figure 4 It is a perspective view of the housing channel used in the present invention. Figure 5 It is a schematic diagram of the casing channel member of the present invention before being combined with the fuel cell flow field plate. Figure 6 Then it is a combination diagram of the casing channel member and the fuel cell flow field plate of the present invention.
[0068] The present invention is designed to have a fuel cell flow field plate 30 fitted with a housing channel member 40 . Such as Figure 4 As shown, the casing channel member 40 is similar to a U-shape or a 7-shape, and includes: a first surface 401 and a second surface 403 parallel to each other, and the first surface 401 and the second surface 403 are connected by a connecting surface 402 .
[0069] When the first surface 401 is combined with the flow field plate 30, it is on the same side as the flow field surface 305 (that is, the first surface 401 contacts the flow field surface 305), so as to ...
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The invention discloses a fuel cell flow field plate with a shell channel part, which comprises a flow field plate and a shell channel part. One side of the flow field plate is a flow field surface for receiving a reaction fluid, and the other side is a non-reaction surface; the flow field plate has a first branch channel and a second branch channel, the flow field surface is provided with at least one flow channel, and the flow channel is connected with the first branch channel through a first flow channel port and connected with the second branch channel through a second flow channel port; and the shell channel part has a first surface and a second surface which are parallel, the first surface and the second surface are connected by a connecting surface inbetween, the connecting surfaceis provided with at least one through hole, so when the shell channel part is combined with the flow field plate, the first surface contacts the flow field surface while the second surface contacts the non-reaction surface, and the first branch channel is communicated with the first flow channel port through the through hole.
Description
technical field [0001] The invention relates to a fuel cell flow field plate, in particular to a fuel cell flow field plate with a casing channel piece. Background technique [0002] Proton Exchange Membrane (PEM) fuel cell (Fuel Cell) is also known as polymer membrane fuel cell, the most basic structure is a single fuel cell, such as figure 1 shown. The composition of the fuel cell 10 includes a membrane electrode assembly (membrane electrode assembly, MEA) 110, two gas diffusion layers (gas diffusion layer, GDL) 105 and 107, and two flow field plates (fluid flow plat) 101 and 102; Layers 105 and 107 are sandwiched between flow field plates 101 and 102 , and MEA 110 is sandwiched between gas diffusion layers 105 and 107 . There are independent flow channels (flow channels) 103 and 104 in the flow field plates 101 and 102 to distribute and transport the reactive fluid (reactant fluid) and the residual fluid after the reaction of the fuel cell; on the anode side (anode side...
Claims
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IPC IPC(8): H01M8/02H01M4/86H01M8/0258H01M8/0263
CPCY02E60/50
Inventor 陈祈彰许桓瑞锺孝平曹芳海张文振
Owner IND TECH RES INST