JPS5823708B2 - Method for manufacturing alkaline storage batteries - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an alkaline storage battery using a non-magnetic material as a pole column.

It is conventionally known that the initial discharge characteristics of alkaline storage batteries can be improved by using non-magnetic materials such as copper and lead as pole column constituents.

However, non-magnetic materials such as copper and lead have poor alkali resistance, and must be covered with alkali-resistant nickel, iron, etc. to protect the non-magnetic materials from alkaline electrolytes. In addition to electrically and mechanically integrating the nickel pipe and the copper by press-fitting or brazing, a new electrode plate lug mounting body must be provided at the lower end of the nickel pipe, and the plate lug must be There is a drawback that the mounting body must also be protected with an alkali-resistant material, which makes manufacturing complicated.

The present invention aims to eliminate the above-mentioned conventional drawbacks, and the present invention crimps and presses a non-magnetic material and a cylindrical body loosely fitted into the non-magnetic material from both sides of the non-magnetic material at one end, and at the same time provides a planar plate lug attachment part. , closing the edge of the cylindrical body of the electrode plate lug attachment part to form a pole column;
This method is characterized by directly spot-welding the electrode plate lug to the electrode plate lug attachment portion of the pole column, and provides a method for obtaining an alkaline storage battery with improved initial discharge characteristics through a simple manufacturing method.

Next, one embodiment of the invention will be described. As shown in the first figure, a cylindrical non-magnetic body 1 made of copper is loosely fitted into an iron cylindrical body 3, leaving a spiral 2 carved part at one end. The lower end of the cylinder body 3 is pressed from both sides so that the non-magnetic material 1 and the cylinder body 3 are crimped together at the lower end as shown in the second figure, and a flat plate lug attachment part 4 is provided, and the lower end of the cylinder body 3 is sealed by welding. Then, a pole column 5 was formed.

A packing seat 6 was welded to the side surface of the cylindrical body at approximately the center of the pole column 5, and the entire body was plated with nickel if necessary.

Next, as shown in FIG. 3, the same polarity electrode plate lugs 8 of the electrode plate group 7, which is made up of negative and anode plates arranged alternately with separators in between, are spot welded directly to the electrode plate lug mounting portion 4 of the pole column 5. At the same time, the cylindrical body 3 and the non-magnetic body 1 were electrically connected.

A battery case lid 10 is attached to the battery case 9 into which the electrode plate group 7 has been inserted, and a tightening nut 12 is screwed onto the spiral 2 of the pole post 5 protruding from the pole post insertion hole 11 provided in the battery case cover 10. The pole pole 5 was attached to the battery case lid 10 at the same time to obtain an alkaline storage battery.

In the figure, 13 is a backing, 14 is an O-ring, and 15 is a washer.

Incidentally, in order to close the lower end of the cylindrical body 3, a separate plate may be applied and the plate may be welded to the cylindrical body 3.

As described above, according to the present invention, the non-magnetic material 1 and the cylindrical body 3 loosely fitted therein are crimped by applying pressure from both sides at one end, and at the same time, the planar plate lug mounting part 4 is provided, and the plate lug mounting part 4 is provided. The end edge of the cylinder 3 of the ear attachment part 4 is closed to form the pole post 5, and the pole plate lug 8 is directly spot welded to the pole plate ear attachment part 4 of the pole post 5. There is no need to press fit the plate lug or to provide a separate plate lug mounting body, and since the plate lug mounting portion is flat, the plate lug is extremely easy to attach.

In addition, the manufacturing method is simple, such as the ability to electrically connect the non-magnetic material and the cylindrical body at the same time when attaching the pole plate lugs to the pole poles, so that an alkaline storage battery with improved initial discharge characteristics can be obtained easily and at a low location. It has the following effects:

[Brief explanation of the drawing]

FIGS. 1 to 3 are explanatory diagrams of one embodiment of the present invention.
The figure is a cross-sectional view of a cylinder loosely fitted into a non-magnetic material, Figure 2 is a cross-sectional view of a pole column in which a non-magnetic material and a cylinder are pressure-bonded, and Figure 3 is a partial cross-sectional view of an alkaline storage battery. be. 1...Non-magnetic material, 3...Cylinder, 4...
... Pole plate ear attachment part, 5 ... Pole column, 7 ...
... Plate group, 8... Pole plate ears.

Claims (1)

[Claims] 1 The non-magnetic material 1 and the cylindrical body 3 loosely fitted therein are crimped by applying pressure from both sides at one end, and at the same time, a planar plate lug attachment part 4 is provided, and the cylindrical body 3 of the plate lug attachment part 4 is crimped. A method for manufacturing an alkaline storage battery, which comprises forming a pole post 5 by closing its edge, and directly spot welding a pole plate lug 8 to a plate lug attachment portion 4 of the pole post 5.