Container for fuel cell, fuel cell and electronic device

Abstract

This fuel cell container is equipped with a substrate 6 having a recessed part to house the electrolyte member 3 having first and second electrodes 4, 5, a first fluid passage 8 formed from the bottom surface of the recessed part on to the external surface of the substrate 6, a first wiring conductor 10 one end of which is disposed on the bottom surface of the recessed part and the other end of which is led out to the external surface of the substrate 6, a lid body 7 attached to the upper surface of the periphery of the recessed part of the substrate 6, a second fluid passage 9 formed from the lower surface of the lid body 7 on to its external surface, and a second wiring conductor 11 one end of which is disposed on the lower surface of the lid part 7 and the other end of which is led out to the external surface of the lid part 7, and a recessed part 12 is formed in either one of the contact part where the first electrode 4 is brought into contact with the substrate 6 or the contact part where the second electrode 5 is brought into contact with the lid part 7.

Description

technical field [0001] The present invention relates to a small and highly reliable fuel cell container made of ceramics capable of accommodating an electrolyte member, and to a fuel cell and electronic equipment using the same. Background technique [0002] In recent years, development of a small fuel cell that operates at a lower temperature than before has been actively carried out. As fuel cells, solid polymer electrolyte fuel cells (Polymer Electrolyte Fuel Cell: hereinafter referred to as PEFC), phosphoric acid fuel cells, or solid electrolyte fuel cells are known depending on the type of electrolyte used. [0003] Among them, the working temperature of PEFC is a low temperature of about 80-100°C, and has the following remarkable features, namely: [0004] (1) The output density is high, which can realize miniaturization and light weight. [0005] (2) Since the electrolyte is non-corrosive and the operating temperature is low, there are few restrictions on the batter...

AI Technical Summary

Problems solved by technology

However, in the conventional fuel cell 21, since electric power is taken out from the fuel electrode 24 and the air electrode 25 sandwiching the electrolyte member 23, the only methods that can be used to pull out the gas separator 26 for external connection or make the gas separator 26 a conductive material and coincident series connection method, which has the problem of being difficult to implement in small fuel cells

[0024] Moreover, water (H 2 O) The air flow path 29 will be blocked, so it becomes difficult to supply air as an oxidant gas from the atmosphere to the air electrode 25 through the air flow path 29, thereby hindering the electrochemical reaction at the electrolyte member 23, thereby degrading the power generation efficiency.

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