Electrode for fuel cell and method of preparing the same and membrane electrode assembly and fuel cell comprising the same

A fuel cell and electrode technology, which is applied to fuel cell parts, fuel cells, battery electrodes, etc., can solve problems such as inability to connect electrode layers and difficulties

Active Publication Date: 2010-10-13
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this may cause stress on the electrolyte membrane, requiring a difficult process and resulting in failure to connect all electrode layers

Method used

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  • Electrode for fuel cell and method of preparing the same and membrane electrode assembly and fuel cell comprising the same
  • Electrode for fuel cell and method of preparing the same and membrane electrode assembly and fuel cell comprising the same
  • Electrode for fuel cell and method of preparing the same and membrane electrode assembly and fuel cell comprising the same

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Embodiment Construction

[0029] Hereinafter, a method of manufacturing an electrode for a fuel cell according to the present invention will be described in detail. Before the description, those skilled in the art should be able to understand that the terms used in this specification and the appended claims should not be construed as limited to the general and dictionary meanings, but should be interpreted in the inventor's best On the basis of the principle of appropriately limiting terms, interpretations are based on the meanings and concepts corresponding to the embodiments of the present invention. Therefore, the descriptions presented here are only preferred embodiments for the purpose of illustration, and are not intended to limit the scope of the present invention. Therefore, it should be understood that other equivalent replacements and modifications can be made without departing from the spirit and scope of the present invention. .

[0030] First, an ink for forming a catalyst portion and an ...

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Abstract

The present invention relates to an electrode for a fuel cell including a catalyst layer that includes a catalyst portion containing a plurality of first catalyst particles dispersed in an ionomer binder resin; and an ionomer portion containing a plurality of second catalyst particles dispersed in an ionomer binder resin, and having a lower concentration of catalyst particles than the catalyst portion, wherein the ionomer portion has a shape of a wall or plural pillars in the catalyst portion. The electrode for a fuel cell according to the present invention has a separate ionomer portion in the catalyst layer, and thus has excellent ion conductivity in an electrode layer and the remarkably improved reaction surface area to enhance the performance of the fuel cell.

Description

technical field [0001] The present invention relates to an electrode for a fuel cell and a preparation method thereof, and a membrane electrode assembly and a fuel cell including the electrode, and more particularly, the present invention relates to an electrode having improved ion conductivity, reaction surface area, and durability. An electrode for a fuel cell, a preparation method thereof, a membrane electrode assembly including the electrode, and a fuel cell. Background technique [0002] Recently, as the depletion of conventional energy sources such as oil or coal is expected, interest in alternative energy sources has increased. Fuel cells are one such alternative energy source, which advantageously have high efficiency and do not release NO X and SO X pollutants and use abundant fuels, therefore, fuel cells have attracted public attention. [0003] The fuel cell is a power generation system that converts the chemical energy of a fuel and an oxidant into electrical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86
CPCH01M4/8832H01M2008/1095H01M4/8642H01M4/926H01M4/8626H01M4/8892H01M4/8647Y02E60/50H01M4/86H01M4/88H01M8/02
Inventor 金赫李源镐李昶松郑盛旭李尚铉
Owner LG CHEM LTD
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