JPS60121681A - Manufacturing method for cylindrical storage battery - Google Patents

Abstract

PURPOSE:To improve volume ratio, increase discharge characteristics, and simplify and shorten work by combining two semi-cylindrical axes, forming a cylindrical axis, simultaneously winding positive and negative electrode plates, and forming an assembled element. CONSTITUTION:A lower semi-cylindrical axis 2a is connected to an anode plate 8 and a upper semi-cylindrical axis 2b is connected to a cathode plate 9, and a separator 10 is provided between them. For work, a laminated type assembled element is formed by tightly connecting them up and down and winding them in the preset direction. In other words, both-end disk section of a combined axis is inserted and tightened by tripod chucks Ch1 and Ch2 and then winding work is executed by operating drive motors M1 and M2. After winding, the element is housed in a can body 6 and is connected electrically. In addition, a preset amount of an alkaline electrolyte is injected from the opening section 4 of a disk 2a and the opening section of the disk is sealed. As a result, volume ratio is improved, discharge characteristics are increased and then work can be simplified and shortened.

Description

Detailed Description of the Invention This invention mainly uses nickel-cadmium (Ni-Cd).
) This invention relates to an improvement in the manufacturing method of a cylindrical storage battery, which is produced by winding the electrode plates of an alkaline storage battery, typically a 1L storage battery.

Conventionally, the method for manufacturing this type of storage battery was as follows. That is, a group of electrode plates in which a cathode plate and an anode plate are laminated via a separator is prepared in advance and wound in a spiral around a winding shaft, and this is inserted into a housing housing and wound. After pulling out the rotating shaft, one end of the cathode is welded to the inner bottom of the can, one end of the anode is welded to the lid of the can, and this lid is caulked around the opening of the can to electrically insulate it. The process was to take this condition, seal the can, and complete the production of the storage battery.

According to the conventional manufacturing method described above, after processing using a winding shaft, it is necessary to remove this shaft, and after that, a certain amount of q is required to carry out bath welding work such as spot welding in a narrow space. This requires a certain amount of margin, which leads to a problem with the volume ratio and the length of the work process. This invention was made to eliminate such drawbacks, and it improves the discharge characteristics, which is the original performance of storage batteries, by improving the volume ratio, and also improves the manufacturing process by simplifying the work process. Hinatori's high storage battery DAM
The purpose is to provide a method.

An embodiment of the present invention will be described in detail below with reference to the drawings. Figure '1 is a front view of the semi-cylindrical shaft that is the basis of this invention,
Fig. 2 is a front sectional view of a cylindrical storage battery manufactured by the method of the present invention, Fig. 43 is a discharge characteristic diagram showing the performance of the cylindrical alkaline storage battery manufactured by the method of the invention, and Fig. 4 The figure is an exploded view of the main parts of the manufacturing method of the present invention, and FIG. 5 is a diagram showing the entire concrete handling method when driving the compound l141+.

In Figures 1 and 2, (la), (1b)
is the shaft of the -2'9 semi-cylindrical shape, (2a) and (2b) are the disks connected to the -women of the semi-cylindrical +111 (la) and (lb), respectively, and (2a) is the The lid (2b) is a plate that contacts the bottom plate. (3) is a nylon ring for insulation, (4) is a circle 41 fitted in a semicircle m@(la)
．． The opening in (2a) also serves as a liquid injection port and a gas discharge port.

(5) shows an electrode plate group, which is formed by winding to form a spiral electrode plate group. (6) forms a storage tank with a can serving as an outer casing. (7) is a safety valve.

Next, in FIG. 4, the process of winding the electrode plate using the compound shaft will be explained. Figure 4 (a) shows an anode plate (8) welded to the semi-cylindrical shaft shown in (1a) in Fig. 1, and a cathode plate (9) welded to the semi-cylindrical shaft shown in (16) in Fig. 1. The welded version is shown separately.

FIG. 4(b) shows that in the state shown in FIG.
) is shown. @Figure 4 (c) is the same as Figure 4 (
FIG. 3B is a cross-sectional view of a longitudinal section taken along a plane perpendicular to the plane of the paper, as seen from the side. The lower semi-cylindrical shaft (2b) is the anode plate (8)
The upper semi-cylindrical shaft (2b) is connected to the cathode plate (9), with a separator (10) in between. In the diagram,
Although they are shown separately, during work, they are brought into close contact with each other vertically and wound in the direction of the arrows to form a stacked electrode plate group. A more specific explanation of the work is as shown in FIG. That is, the disk portions at both ends of the compound shaft are held by triaxial chucks (chi) and (Ch2), the chucks (α), (β), and (γ) are appropriately tightened, and then the drive motors (Ml) and ( M2) and the fourth
Carry out the winding work shown in Figure (C). The winding rib is stored in the can body (6), and one disc (2a) is attached to the can body (6).
The other disc (2b) is attached to the can body (6) by caulking it to the opening.
) is brought into contact with the inner paper to obtain an electrical connection. Then, a Par amount of alkaline electrolyte was injected into the opening (4) of the disc (2a) which also served as the attachment body, and the opening (4) was sealed using the safety valve (7) to obtain a cylindrical alkaline storage battery. .

As explained above, according to this manufacturing method, the electrode plate group is better compared to both the conventional method without a shaft and the method of creating electrode plates using a single winding shaft. The floor area ratio has improved, ii! This has the effect that the electrode welding work is greatly simplified and work efficiency is greatly improved.

The characteristic curve showing the discharge characteristics, which is the main performance of a storage battery, is shown in Figure 3, and the conventional method without an axis is
Although omitted, even when compared with the characteristic curve (B) when the winding axis is a single axis, the characteristic surface # (C) when the winding axis is the compound axis of this invention is generally 1096 or more. Since the improvement is seen, it is clear that the performance is significantly improved when compared with the conventional method, and the effect of the manufacturing method of the present invention is remarkable.

[Brief explanation of drawings]

FIG. 1 is a front view showing the compound shaft that is the basis of the method of this invention separated, FIG. 2 is a front sectional view of a cylindrical storage battery completed by the manufacturing method of this invention, and FIG. 3 is a conventional Fig. 4 is a diagram illustrating the main parts of the electrode winding work, and Fig. 5 is a work explanation of the electrode winding work. It is a diagram. In the figure, (la), (lb)...The semi-cylindrical/axial anode and the semi-cylindrical/axial cathode are shown separated. (2a), (2b)... Lid serving as an anode, bottom plate serving as a cathode, (3)... Nylon ring, (4)... Liquid injection port and gas discharge port, (5)... Plate group cross section, (6)
...Casing can, (7)...Safety valve, (8)...Anode plate, (9)...km41tt, L (10)...
Separator, (B)...Discharge characteristic curve by the manufacturing method using a single axis, (C)...Discharge characteristic curve by the manufacturing method using a compound axis according to the present invention, (Ml), (M2)...
・Drive motor, (Chl), (Ch2)...triaxial chuck, Be...bearing, (α), (β), (γ)
...It is an element of a three-axis chuck. Patent Applicant Furukawa Battery Co., Ltd. Agent Ben 14Ji Akira Hide Sato/Mede r2-f (Hiro J/I): +4 /':? One step''', 5 (f (e)

Claims (1)

[Claims] In a method for manufacturing a cylindrical storage battery equipped with electrode plates, the cylindrical shaft f/- for winding the electrode plates is provided as two semi-cylindrical shafts, and one end of each shaft is fixed with a disc-shaped conductor, SotL
Directly welding the anode plate or the cathode plate to the shaft of No. 11;
A separator is interposed between the two semi-cylindrical shafts, and the two semi-cylindrical shafts are combined to form a cylindrical shaft, and the anode plate and the cathode plate are simultaneously wound to form a separator. A stage of forming the whole group, and a stage of inserting this wound '+#I plate group together with the upper and lower disks and the combined cylindrical shaft into the can forming the outer casing to complete the manufacturing into a predetermined shape. A method for manufacturing a cylindrical storage battery, characterized by comprising: