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Bipolar plate of proton exchange membrane fuel battery

A proton exchange membrane and fuel cell technology, applied in fuel cells, solid electrolyte fuel cells, fuel cell components, etc., can solve the problem that metal bipolar plates do not meet the lightweight design requirements, and achieve improved power generation effect, The effect of meeting design requirements, reducing size and mass

Pending Publication Date: 2018-10-23
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a proton exchange membrane fuel cell bipolar plate, aiming to solve the problem that the existing metal bipolar plate does not meet the lightweight design requirements

Method used

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  • Bipolar plate of proton exchange membrane fuel battery
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  • Bipolar plate of proton exchange membrane fuel battery

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Embodiment Construction

[0034] The technical solutions in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings in this embodiment. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in this embodiment are only used to explain the relative relationship between the various components in a certain posture (as shown in the figure). When the positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, descriptions such as "first", "second" and so on are ...

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Abstract

The invention discloses a bipolar plate of a proton exchange membrane fuel battery. The bipolar plate comprises a first metal single plate, wherein the first metal single plate is provided with a plurality of first bosses at intervals, and a first groove is formed between any two adjacent first bosses; a second metal single plate is provided with a plurality of second bosses at intervals, and a second groove is formed between any two adjacent second bosses; the number of the first bosses is the same with the number of the second bosses, the first bosses correspond to the second bosses, the first bosses and the second bosses are respectively in a wave shape and are the same in the extending directions, and the bending direction of each first boss is opposite to the bending direction of eachsecond boss; a coolant flow field is formed between each first boss and the corresponding second groove, and an air flow field is respectively formed on each first groove and each second boss. The bipolar plate has the advantages that the air flow fields and the coolant flow fields are distributed in an embedding way, so that the thickness of the bipolar plate of the proton exchange membrane fuelbattery is greatly reduced, and the light-weight design requirement is met.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a bipolar plate of a proton exchange membrane fuel cell. Background technique [0002] A proton exchange membrane fuel cell is a power generation device that uses hydrogen and oxygen as fuel to convert chemical energy into electrical energy. Among them, the bipolar plate, as the core component, plays an important role in supporting and fixing the proton exchange membrane fuel cell components, separating fuel gas and oxidizing gas, collecting and conducting current, so optimizing the design of the bipolar plate will improve the performance of the proton exchange membrane fuel cell has a huge effect. [0003] As far as the current design and manufacture of bipolar plates are concerned, most of the basic structural materials are graphite or metal. Compared with graphite, metal plates have smaller porosity and higher mechanical strength, and with the further improvement of metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0202H01M8/0258H01M8/10
CPCH01M8/0202H01M8/0258H01M8/10Y02E60/50
Inventor 裴后昌孟凯涂正凯张永林
Owner WUHAN POLYTECHNIC UNIVERSITY
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