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Metal bipolar plate flow field system of proton exchange film fuel cell

A technology of metal bipolar plates and proton exchange membranes, applied in fuel cells, fuel cell parts, circuits, etc., can solve hidden dangers and other problems

Pending Publication Date: 2020-05-01
ZHEJIANG UNION SKY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the storage battery industry, such as lithium batteries, lead-acid, nickel-metal hydride, and nickel-cadmium batteries, has relatively large hidden dangers such as environmental protection and safety. Today, with the development of science and technology, it is difficult to meet the requirements of green energy. It is urgent to develop new alternative products. up

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  • Metal bipolar plate flow field system of proton exchange film fuel cell
  • Metal bipolar plate flow field system of proton exchange film fuel cell
  • Metal bipolar plate flow field system of proton exchange film fuel cell

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0031] As shown in the figure, the metal bipolar plate flow field system of the proton exchange membrane fuel cell, the bipolar plate is made of the anode unipolar plate 1, the cathode unipolar plate 2 and the middle partition 3 by laser welding or glue bonding, The fuel flow field, the oxidant flow field, the coolant flow field II, and the coolant flow field I are formed respectively.

[0032] Furthermore, the front of the anode unipolar plate 1 is a fuel flow field, and the full-process multi-channel serpentine-interdigitated flow channel or multi-channel serpentine flow channel is adopted; at the same time, the full-process flow channel makes the reverse side form a complete multi-channel serpentine coolant The flow channel is the coolant flow field II.

[0033] Further, the front of the cathode unipolar plate 2 is an oxidant flow field, and the ...

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Abstract

The invention discloses a metal bipolar plate flow field system of a proton exchange film fuel cell and belongs to the technical field of a fuel cell. The bipolar plate is of a three-layer structure formed by connecting an anode monopole plate, a cathode monopole plate and a middle partition plate, and a fuel flow field, an oxidizing agent flow field, a cooling liquid flow field II and a cooling liquid flow field I are formed respectively. The metal bipolar plate flow field system of the proton exchange film fuel cell is characterized in that an anode flow field reserves advantages of small pressure drop of multiple paths of serpentine flow channels and good gas diffusivity of interdigital flow channels; a cathode flow field reserves multiple paths of snake-shaped flow channels for exhausting, so the pressure is reduced conveniently, moreover, convex hulls enable oxidant flowing in the flow channels to be diffused to a diffusion layer to improve the battery power; two groups of doublecooling liquid flow fields with opposite cooling liquid flow directions enable the cooling temperature of the cooling liquid to be more uniform, so consistency of the working area of the fuel cell isbetter, the thermal control capability of the fuel cell is greatly improved, and safety of the fuel cell is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, in particular to a metal bipolar plate flow field system of a proton exchange membrane fuel cell. [0002] technical background [0003] At present, the storage battery industry, such as lithium batteries, lead-acid, nickel-metal hydride, and nickel-cadmium batteries, has relatively large hidden dangers such as environmental protection and safety. Today, with the development of science and technology, it is difficult to meet the requirements of green energy. It is urgent to develop new alternative products. up. A fuel cell is a power generation device that directly converts the chemical energy in fuel and oxygen into electrical energy by means of an electrochemical reaction without combustion under isothermal conditions. It is considered to be the ultimate solution to the energy and environmental crisis. [0004] Due to its excellent low temperature and environmental protection properties, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0206H01M8/0258H01M8/0263H01M8/0267
CPCH01M8/0206H01M8/0258H01M8/0263H01M8/0267Y02E60/50
Inventor 茅开强周凤满万书径周罡
Owner ZHEJIANG UNION SKY TECH CO LTD
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