JPS58176881A - Flat type liquid fuel cell - Google Patents

Abstract

PURPOSE:To make up a flat type fuel cell, by unifying a laminated body consisting of a fuel electrode, an electrolyte and an oxidizer electrode, and housing this unified element inside a case provided with holes for feeding an oxidizer at the bottom as well as unifying it together with a fuel storage case as one body. CONSTITUTION:The circumference of a laminated body consisting of a fuel electrode 10, an electrolyte 11 and an oxidizer electrode 12 is unified through a seal material 13 and housed inside a case 15 provided with plural feeding holes 14 for an oxidizer at the bottom, while a conductive spacer 17 is inserted into a space between the oxidizer electrode 12 and the case 15 so as to make up an oxidizer chamber 16. In addition, a fuel storage case 18 having a refueling port 19 and an exhaust port 20 is installed and, with this case 18 unified with the case 15 by the seal material 13, a flat type liquid fuel cell is made up. Therefore, since this fuel cell is regarded as one being very advantageous from the standpoint of weight and volumetric efficiency, it is well applicable to such a field that uses a dry element cell and/or a secondary cell, among others.

Description

[Detailed description of the invention] FIELD OF THE INVENTION The present invention relates to a planar fuel cell.

In recent years, electronic devices have become more electronic, becoming smaller, lighter, and consume less power. BACKGROUND OF THE INVENTION Dry cells and secondary batteries are used as power sources for portable home appliances such as video tape recorders and cameras.

This type of battery is also used for computer memory backup, strobe light power supplies, etc., and its applications are expected to expand further. However, since dry batteries cannot be regenerated once they are discharged, there are problems in terms of effective resource utilization and environmental conservation. Rechargeable batteries take time to charge and cannot be charged in places where commercial electricity is not available. In contrast, fuel cells have the advantage of not consuming electrode active materials and can generate electricity as long as fuel and oxidizer are supplied.

The conventional structure of the fuel cell is as shown in Figure 1, with a fuel electrode 1,
A stacked body consisting of an electrolyte 2 and an oxidizer electrode 3 is integrated with a battery frame 5, and a fuel chamber frame 7 having a fuel chamber 6 is placed toward the fuel electrode 1 side, and an oxidizer chamber frame 9 having an oxidizer chamber 8 is oxidized. It is constructed by stacking a large number of layers on the side of the agent electrode 3. When trying to apply B's fuel cell to a power source for electronic equipment, the weight and volumetric efficiency would be low, and maintenance would be difficult.

The present invention aims to eliminate the above-mentioned drawbacks, and in order to achieve this objective, a laminate consisting of a fuel electrode, an electrolyte, and an oxidizer electrode is integrated around the periphery with a sealing material, and this is placed at the bottom for supplying an oxidant. It is a flat fuel cell housed in a case with small holes and integrated with a fuel storage case using a sealing material.

An embodiment of the present invention will be described with reference to the drawings.

FIG. 2 shows a planar fuel cell according to the invention. The periphery of a stacked body consisting of a fuel electrode 10, an electrolyte 11, and an oxidizer electrode 12 is integrated with a sealing material 13, and this is placed in a case 15 having a plurality of oxidizer supply holes 14 on the bottom surface. A conductive spacer 17 is inserted between the oxidizer electrode 12 and the case 15 to form an oxidizer chamber 16.
5 is electrically connected to the oxidizer electrode 12. A fuel storage case 18 serving as a fuel chamber has a fuel supply port 19 and a gas discharge hole 20.

21 is a cap, and 22 is a porous water-repellent membrane that selectively allows only gas to pass through, or a gas purifier that decomposes a small amount of harmful gas. Case 15 and fuel storage case 18 are integrated by sealing material 13 and are electrically insulated.

Since the present invention is constructed as described above, it is superior to conventional ones in terms of weight and volume efficiency, and when a higher voltage is required, it is only necessary to electrically connect a large number of them.
Furthermore, during maintenance, it is easy to remove only the faulty battery from the connected ones, and furthermore, it can be applied to fields where dry batteries and secondary batteries are used, and its industrial value is extremely large. be.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway view of a conventional fuel cell, and FIG. 2 is a cross-sectional view of a flat shaped fuel cell showing an embodiment of the present invention. IO is a fuel electrode, 11 is an electrolyte, 12 is an oxidizing agent electrode, 13 is a sealing material, 14 is an oxidizing agent supply hole, 15 is a case, 18 is a fuel storage case Patent applicant Shin-Kobe Electric Co., Ltd.

Claims (1)

[Claims] A stacked body consisting of a fuel electrode, an electrolyte, and an oxidizer electrode is integrated with a sealing material around its periphery, and this is housed in a case with a small hole at the bottom for supplying an oxidizer. A flat-formed fuel cell characterized by being integrated.