Fuel cell and its mfg. method, electronic machine and automobile

Abstract

Provided is a fuel cell having a current collecting layer for efficiently collecting electrodes generated in a reaction layer and a reaction layer with a high reaction efficiency, and having high output density and excellent properties, and its manufacturing method. The fuel cell comprises a first substrate with a first gas flow path to supply a first reaction gas formed thereon; a first current collecting layer formed on the first substrate; a first reaction layer formed on the first current collecting layer; an electrolyte film formed on the first reaction layer; a second current collecting layer formed on the second reaction layer; and a second substrate with a second gas flow path to supply a second reaction gas formed thereon. The first and the second current collecting layers are featured by being formed by stacking particles of conductive substances.

Description

technical field [0001] The present invention relates to a fuel cell that supplies different types of reactant gas to each electrode from the outside and generates electricity by a reaction based on the supplied reactant gas, a method for manufacturing the same, and an electronic device and an automobile using the fuel cell as a power supply source. Background technique [0002] Conventionally, there is a fuel cell composed of an electrolyte membrane, an electrode (anode) disposed on one surface of the electrolyte membrane, an electrode (cathode) disposed on the other surface of the electrolyte membrane, and the like. For example, in a solid polymer electrolyte fuel cell in which the electrolyte membrane is a solid polymer electrolyte membrane, the reaction of converting hydrogen into hydrogen ions and electrons occurs on the anode side, the electrons flow to the cathode side, and the hydrogen ions flow to the cathode in the electrolyte membrane. On the cathode side, the reac...

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Problems solved by technology

However, these methods have many steps and are complicated, and it is difficult to uniformly coat the catalyst, and it is difficult to accurately coat a specific amount of catalyst on a specific position, so the characteristics (output density) of the resulting fuel cell may be low or The problem of high production costs due to the increase in the use of expensive catalysts such as platinum

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