Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuel cell

A fuel cell and electrode layer technology, applied to fuel cell components, solid electrolyte fuel cells, battery electrodes, etc., can solve problems such as reducing fuel cell performance

Inactive Publication Date: 2009-07-01
TOYOTA JIDOSHA KK
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, according to the above technology, platinum supported on carbon is placed near the interface between the electrode and the electrolyte membrane, where the carbon tends to be oxidized, and the oxidized carbon can degrade the performance of the fuel cell

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel cell
  • Fuel cell
  • Fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Embodiments of the present invention will now be described based on examples in the following order: A. Examples, B. Performance evaluation, and C. Modifications.

[0029] A. Examples

[0030] figure 1 is an explanatory view schematically showing the configuration of the fuel cell 10 according to one example. The fuel cell 10 is a polymer electrolyte fuel cell which is small in size and excellent in power generation efficiency. The fuel cell 10 has a stack structure in which a plurality of MEAs (Membrane Electrode Assemblies) 100 each sandwiched between separators 200 are stacked. In order to be able to easily understand the structure of the fuel cell 10, figure 1 MEA 100 and separator 200 are shown before being laminated together.

[0031] Each MEA 100 has an electrolyte membrane 110 , an anode electrode 120 disposed on one surface of the electrolyte membrane 110 , and a cathode electrode 130 disposed on the other surface of the electrolyte membrane 110 .

[0032]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fuel cell includes an electrolyte membrane (110), a cathode electrode layer (130) disposed at a surface of the electrolyte membrane (110), and an anode electrode layer (120) disposed at a surface of the electrolyte membrane (110) opposite to a surface facing the cathode electrode layer (130). At least one of the cathode electrode layer (130) and the anode electrode layer (120) includes a first catalyst layer (131) disposed at an interface with the electrolyte membrane (110), and a second catalyst layer (132) disposed at a surface of the first catalyst layer (131) opposite to a surface facing the electrolyte membrane (110). The first catalyst layer (131 ) is configured to contain a catalyst not supported on a earner and not to contain a catalyst supported on a carrier. The second catalyst layer (132) is configured to contain a catalyst supported on a carrier.

Description

technical field [0001] The present invention relates to a technique for suppressing performance degradation of a fuel cell. Background technique [0002] A fuel cell such as a polymer electrolyte fuel cell has a configuration in which MEAs (membrane electrode assemblies) and separators are alternately laminated by interposing cathode electrodes and anode electrodes (which may be collectively referred to simply as "electrodes" hereinafter) electrolyte membrane to manufacture each MEA. [0003] An oxidizing agent gas containing oxygen is supplied to the cathode electrode via the separator to be used in a reaction expressed by the following formula (1). On the other hand, fuel gas containing hydrogen is supplied to the anode electrode via the separator to be used in a reaction expressed by the following formula (2). Fuel cells convert the chemical energy of these substances directly into electrical energy based on these reactions. [0004] Cathodic electrode reaction: 2H + ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/92H01M4/86H01M8/10H01M8/02
CPCH01M4/8828H01M4/926H01M4/92Y02E60/521H01M4/8657Y02E60/50H01M4/928H01M4/921H01M4/881
Inventor 角谷聪
Owner TOYOTA JIDOSHA KK