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Bipolar plate, fuel battery and fuel battery system

A fuel cell and bipolar plate technology, applied in fuel cells, fuel cell parts, solid electrolyte fuel cells, etc., can solve the problems of low current density and low power efficiency, and achieve guaranteed water content, low manufacturing cost, The effect of simple structure

Active Publication Date: 2014-05-07
DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a bipolar plate, a fuel cell and a fuel cell system to solve the problems of low local current density and low power efficiency in the prior art due to excessively high local ambient temperature inside the fuel cell

Method used

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  • Bipolar plate, fuel battery and fuel battery system
  • Bipolar plate, fuel battery and fuel battery system
  • Bipolar plate, fuel battery and fuel battery system

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Embodiment Construction

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0030] As a first aspect of the present invention, a bipolar plate is provided. Such as Figure 1 to Figure 5 As shown, the bipolar plate includes a body 10, and one side of the body 10 has cooling channels 11, the cooling channels 11 are multi-channel, and the coolant inlets of at least two cooling channels 11 in the multi-channel cooling channels 11 11a is set in the local reaction high temperature zone 12. Since the multi-channel cooling channels 11 are provided, the coolant inlets 11a of the multi-channel cooling channels 11 can be correspondingly provided in the local reaction high temperature zone 12 according to the reaction conditions of the fuel cell 100, so as to control the local reaction high temperature of the fuel cell 100. Zone 12 p...

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Abstract

The invention provides a bipolar plate, a fuel battery and a fuel battery system. The bipolar plate comprises a body, wherein multiple cooling runners are arranged on one side face of the body, and coolant inlets of at least two cooling runners in the multiple cooling runners are arranged in a local reaction high-temperature area. As the multiple cooling runners are arranged, the coolant inlets of the multiple cooling runners can be correspondingly arranged in the local reaction high-temperature area, so that the local reaction high-temperature area of the fuel battery is cooled at multiple points in a targeted manner, thereby further guaranteeing the water content of a proton exchange membrane, the electric current density stability and overall electric energy efficiency of the fuel battery and the service life of the fuel battery. Meanwhile, the bipolar plate provided by the invention has the characteristics of simple structure and low manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of fuel cells, and more specifically, to a bipolar plate, a fuel cell and a fuel cell system. Background technique [0002] A fuel cell is a power generation device that converts chemical energy into electrical energy in a non-combustion manner. It has the advantages of environmental friendliness, safety, reliability, and ease of operation. Since the fuel cell is not limited by the Carnot cycle, its direct power generation efficiency can reach 45%, and its combined heat and power efficiency can reach more than 90%. It is widely used in many fields such as backup power supply, distributed power station and automobile power. There are many types of fuel cells, among which proton exchange membrane fuel cells have the advantages of high current density, high power generation efficiency and rapid start-up at room temperature. [0003] In a proton exchange membrane fuel cell, a solid polymer proton exchange membr...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M4/86H01M8/10H01M8/0258H01M8/04029H01M8/1007
CPCH01M8/0258H01M8/026H01M8/0263H01M8/04134H01M2008/1095Y02E60/50Y02P70/50
Inventor 汤浩李扬宋彦彬殷聪张占奎
Owner DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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