Solid polymer electrolyte membrane electrode assembly and solid polymer electrolyte fuel cell using same

An electrolyte membrane electrode and solid polymer technology, which is applied in the field of solid polymer electrolyte membrane electrode assemblies and solid polymer electrolyte fuel cells, can solve problems such as electrical instability, hindering the flow of fuel gas or oxidizing gas, etc., and achieve reduction Reduced maintenance frequency such as running costs and replacement, and improved long-term durability

Active Publication Date: 2006-05-17
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, when the water brought by humidification stays in the stack or cell together with the water generated by the battery reaction, the flow of fuel gas or oxidizing gas may be hindered, and the generated electricity may be unstable. Minimize the auxiliary power required for the humidification of the above-mentioned membranes as much as possible to increase the power generation efficiency of the fuel cell system as much as possible, therefore, suppress the above-mentioned humidification to a minimum as much as possible

Method used

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  • Solid polymer electrolyte membrane electrode assembly and solid polymer electrolyte fuel cell using same
  • Solid polymer electrolyte membrane electrode assembly and solid polymer electrolyte fuel cell using same
  • Solid polymer electrolyte membrane electrode assembly and solid polymer electrolyte fuel cell using same

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no. 1 approach

[0046] refer to figure 1 , 2 A first embodiment of the solid polymer electrolyte membrane electrode assembly of the present invention and a solid polymer electrolyte fuel cell using the same will be described. figure 1 is a schematic diagram of the composition of the solid polymer electrolyte membrane electrode assembly, figure 2 It is a schematic configuration diagram of a solid polymer electrolyte fuel cell stack.

[0047] The solid polymer electrolyte membrane electrode assembly that the present invention relates to, such as figure 1 As shown, a solid polymer electrolyte membrane electrode assembly (hereinafter referred to as "unit (cell)") in which a fuel electrode film 12 is provided on one surface of a solid polymer electrolyte membrane 11 and an oxide electrode film 13 is provided on the other surface. ) 10, the solid polymer electrolyte membrane 11 in the cell 10 contains ions of at least one metal selected from the group consisting of Ce, Tl, Mn, Ag, and Yb.

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no. 2 approach

[0070] refer to image 3 A second embodiment of the solid polymer electrolyte membrane electrode assembly of the present invention and a solid polymer electrolyte fuel cell using the same will be described. image 3 It is a schematic diagram of the structure of the solid polymer electrolyte membrane electrode assembly. In addition, the same parts as those of the above-mentioned first embodiment are denoted by the same symbols used in the description of the above-mentioned first embodiment, and the description of the same items as those described in the above-mentioned first embodiment is omitted.

[0071] The solid polymer electrolyte membrane electrode assembly that the present invention relates to, such as image 3 As shown, in the solid polymer electrolyte membrane electrode assembly (unit, cell) 20 in which the fuel electrode film 22 is provided on one surface of the solid polymer electrolyte membrane 21 and the oxide electrode film 23 is provided on the other surface, th...

no. 3 approach

[0087] refer to Figure 4 A third embodiment of the solid polymer electrolyte membrane electrode assembly and the solid polymer electrolyte fuel cell using the same will be described. Figure 4 It is a schematic diagram of the structure of the solid polymer electrolyte membrane electrode assembly. In addition, the same parts as those of the above-mentioned first and second embodiments are denoted by the same symbols used in the description of the above-mentioned first and second embodiments, and the descriptions of the same items as those described in the above-mentioned first and second embodiments are omitted.

[0088] The solid polymer electrolyte membrane electrode assembly related to this embodiment, such as Figure 4 As shown, in the solid polymer electrolyte membrane electrode assembly (unit) 30 in which the fuel electrode film 12 is provided on one surface of the solid polymer electrolyte membrane electrode assembly 21 and the oxide electrode film 13 is provided on th...

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Abstract

The present invention provides a solid polymer electrolyte membrane electrode assembly and a solid polymer electrolyte fuel cell using the same, in which the operation management related to the humidification of the solid polymer electrolyte membrane can be easily performed, and even if it is carried out every day During start-up and stop of operation or load following operation, the long-term durability of the solid polymer electrolyte membrane can be suppressed to improve its long-term durability, and the frequency of maintenance such as replacement can be reduced. In the solid polymer electrolyte membrane (unit) (10) in which the fuel electrode film (12) is provided on one surface of the solid polymer electrolyte membrane (11) and the oxide electrode film (13) is provided on the other surface, the above-mentioned The solid polymer electrolyte membrane (11) in the cell (10) contains ions of at least one metal selected from Ce, Tl, Mn, Ag, and Yb.

Description

technical field [0001] The present invention relates to a solid polymer electrolyte membrane electrode assembly (joint body) and a solid polymer electrolyte fuel cell using the same. Background technique [0002] The solid polymer electrolyte fuel cell is sandwiched between the fuel electrode membrane and the oxide electrode membrane with protons (H + ) conductive solid polymer electrolyte membrane to obtain a solid polymer electrolyte membrane electrode assembly (unit, Cell), and a plurality of obtained solid polymer electrolyte membrane electrode assemblies are laminated to form a stack (stack), and the solid polymer electrolyte membrane electrode assembly containing hydrogen (H 2 ) fuel gas is supplied to the fuel electrode membrane side, and at the same time, will contain oxygen (O 2 ) oxidizing gas is supplied to the oxide electrode membrane side, and hydrogen and oxygen are electrochemically reacted through the solid polymer electrolyte membrane, whereby electric powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/00H01M4/86H01M8/10
CPCH01M8/1023H01M8/1039H01M8/1051H01M2300/0082H01M2300/0091Y02E60/50
Inventor 渡边悟弦卷茂丰田一郎八岛吉见山田昭彦伊藤荣基
Owner MITSUBISHI HEAVY IND LTD
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