JPS5816466A - Method of producing battery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The invention consists of flat cells stacked on top of each other.

and a zinc anode, an alkaline electrolyte, and a manganese dioxide-carbon briquette-shaped cathode in contact with a metal terminal. 〇Agreement on a method of manufacturing a battery with a briquette-shaped cathode in contact with a zinc anode, an alkaline electrolyte, and a metal terminal. It is formed from a cylindrical member having a diameter and a thickness. These parts are difficult to manufacture and have a high rate of rejected products (80 rappings).
percentage) is high. Furthermore, a large portion of the volume is not utilized effectively and one dimension is limited.

This led to the introduction of flat cells that overlap each other. This cell is described, for example, in Danish patent application no. 5818778. With this method, a utilization rate of more than 28% of the volume is obtained. Each cell is placed in a plastic cup. However, certain problems arise in forming satisfactory contact between the manganese dioxide-carbon briquette (cathode body) and the metal terminal.

The present invention is based on the discovery and achievement of a simple means of forming satisfactory contact between manganese dioxide and one carbon briquettes and metal terminals by: It is characterized in that the carbon briquette is fixed to the negative metal terminal by pressing along the edge of the metal terminal, preferably along two opposite edges. In the present invention and method, the manganese dioxide-carbon briquettes can be attached and removed from the sides of the bent terminal strip along the eight opposing edges, making it suitable for producing large lids. slightly less than 90° along
It is necessary to bend preferably 1 to 8 degrees 4!4 degrees 〇 To facilitate the introduction from the side of the manganese dioxide-carbon briquettes, such briquettes are preferably rounded at their corners ◇ 1 ricket of manganese dioxide-carbon Since it can be stretched, this plug is made smaller than the metal terminal by about 0.06~Q, Qgsw+ when introduced. Next, the present invention will be explained with reference to the accompanying drawings.

The alkaline cell shown in FIG. 1 is formed from a plurality of flat cells stacked together. Each cell comprises a zinc anode, an alkaline electrolyte and a manganese dioxide-carbon briquette-shaped cathode l. Manganese dioxide-carbon briquette is brought into contact with metal terminal 8 ◇ Manganese dioxide briquette l
Since the contact between the metal terminal 1 and the metal terminal 1 determines the short circuit current, it is necessary to satisfy such contact. In the case of square terminals with flaps along all four edges, these flaps curve outwards, resulting in a poor electrical connection. The present invention utilizes a metal interleave section consisting of flaps along eight opposing edges, as shown in FIG. These 72 pieces 1 are inclined inwardly by about 1-1' relative to each other. In this case, a sufficiently good clamping of the manganese dioxide bracket 1 can be obtained. Of course, the terminal 8 should be made of a sufficiently elastic material such as nickel-iron. As a result of this, nine cells of 0.000m are not hampered by this problem, resulting in a short circuit of 8-5m.

This is because such electrode bodies are introduced under pressure to obtain the necessary contact, and there is a risk that the cylindrical member can be subjected to such pressure without impairing the contact.

Furthermore, in the method of the present invention, the terminal body is symmetrical, and when rounding the corners of a briquette with a kneading rate of 1 inch, the briquette can be introduced from the end, so it can be appropriately used for mass production. The metal terminal 2 can then be provided with an additional flap 4, by means of which a predetermined contact can be provided on the bottom surface. Considering that the briquette will stretch slightly when the tension is released by adding 11E% liquid, the 1111 of the briquette is approximately 0.06~0, o s m below the terminal.
Make it smaller. In one example, the terminal is 2.7-height, 1
7.5m length and 1 B, 08m @ Ni. The thickness of the material should be approximately 0.1-0.8ms.

[Brief explanation of the drawing]

FIG. 1 shows the lead-in to a metal terminal and this terminal in contact with a manganese dioxide-carbon briquette.
O 1...Manganese dioxide-carbon briquette 2...Metal terminal 4...・7 laps

Claims (1)

[Claims] L! i. Method for manufacturing a battery consisting of a flat cell with a zinc anode, a manganese dioxide-carbon briquette-shaped cathode (1) in contact with an alkali solution and a metal terminal (2) manufacturing a w1 pond, characterized in that a manganese dioxide-carbon briquette (1) is fixed to a negative metal terminal (2) by clamping it along the opposite, preferably eight opposing sides of the metal terminal; Method. Tortoise 9 along the two opposite edges said metal terminal (2)
2. The method for manufacturing a battery according to item 1, wherein the desired range is slightly less than 0'. & The method of manufacturing a battery according to claim 2, wherein the terminal (g) is directed inwardly along two opposing edges from 1 to δ0IIB. Mori: A method of manufacturing a battery according to Claims 1 and 2 or FIA, wherein a bending flag (4) is provided at approximately 90°. a Method for manufacturing a battery according to claim 1, in which the manganese dioxide-carbon briquette (1) is slightly smaller than the metal terminal (2); a. ) 0.06 to 0.081111.