JPS5912574A - Sealed type multiple alkaline battery - Google Patents

Abstract

PURPOSE:To reduce assembling man-hour by arranging an electrode group produced by stacking a separator, positive electrode, and a negative electrode at regular intervals between synthetic resin films, and bonding their circumferences, and folding bonding portions, and accommodating them in a container. CONSTITUTION:Unit cells 2, 2', and 2'' produced by stacking a separator 4, a positive plate 3, and a negative plate 5 between films or sheets 1 and 1' comprising polypropylene resin are arranged at regular intervals. Circumferences of electrode group sheets are bonded except electrolyte pouring hole 9 to form a plurality of continuing unit cells. Bonding portions of adjacent cells are folded to stack electrode groups and they are accommodated in a container to form a sealed type multiple alkaline battery. Therefore, man-hour of assembly is reduced due to simple assembly and energy density is increased by increased volume efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention accommodates a plurality of single cells in one 1ifll.
This invention relates to improvements in sealed collective alkaline batteries.

An example of this type of battery is the Japanese Patent Publication No. 55-8582
As proposed in No. 6, the positive and negative moving plates, separators, and electrolyte are inserted into a single bag made of synthetic resin film or sheet, and the t-shaped mortuary cell is housed in a battery case with a certain mechanical strength. These include nickel-cadmium storage batteries, alkaline manganese batteries, etc.

The object of the present invention is to stack talvi and Kiji at regular intervals between one or two consecutive synthetic resin films or sheets having electrolyte resistance, with separators interposed between them. By arranging a group of stone plates and gluing the periphery of the group of stone plates, one or more continuous single cells are formed,
Fold this at the adhesive part between adjacent cells, fold it up, stack the single cells B, and insert them into TPA to form a battery set Q.
The object of the present invention is to provide a battery that facilitates the process, reduces the number of assembly steps, and has an improved volumetric efficiency.

Conventional batteries of this kind, for example, the one mentioned above,
In the battery proposed in 85826, each single cell is inserted into a single bag and has a square shape.In addition, when inserting a plurality of single cells into a tank, a plurality of single cells are It takes a lot of effort to bundle, and it is difficult to bundle more compactly, so it requires a larger battery case. The present invention eliminates the drawbacks of the prior art and will be explained in detail in the drawings below.

FIGS. 1(A) and 1(B) are diagrams showing one embodiment of a plurality of consecutive funeral cells according to the present invention; FIG. 1(A) is an explanatory diagram;
B) is an internal structure diagram taken along the AA cross section of (A).

+t) (ti is a film or sheet of electrolyte-resistant synthetic resin, such as polypropylene resin, polyethylene resin, or nylon.

And in the case of a large battery, the film is thicker than the film and represents each single cell (2+ (2'r is the completed f single cell).

(2) is an unfinished single cell. If (3) is a positive nickel cadmium battery, it is a nickel hydroxide moving plate. (4) is a separator, which is made of woven fabric or nonwoven fabric of fibers such as nylon or polypropylene. The negative electrode plate (5) is arranged below the separator (4), as shown in FIG. 1 (b).

In addition, depending on the size and shape of the battery, these differences (81(5)
And a plurality of separators (4) are alternately stacked.
o (b+ Lb) (Takuma 61 de le G'
J Jh s Riki, Z is the part that becomes the spout (91
2 films or sheets (1
) (11 shows the adhesive L4 part.

Adhesives may be used as a bonding method, but if the bonding process is performed using heat or ultrasonic waves in the same manner as bonding, the bonding process between the single cells will be reduced, as shown in Figure 2. Folded together at the adhesive part. Then, the electrolyte is injected from (91 (9) (9), and [E negative lead (7) and (6).

(7() and (4) are connected, and each single cell is electrically connected in series to form a square shape. At this time, the leads (61(7γ) are the negative pressure leads of the battery assembly, respectively. .

Incidentally, depending on the size and shape of the battery, the electrolytic solution may be absorbed and retained in the positive dragon plate, the negative temporary plate, and the separator in advance, and in this case, the liquid injection operation is not necessary.

FIG. 8 shows a sealed collective alkaline battery according to the present invention, in which f single cells shown in FIG. 2 are electrically connected in series and housed therein. Therefore, the positive terminal (0) is connected to the lead (6), and the negative terminal (11) is connected to the negative terminal (7).
If it is 1iJttJ, it will be 8.6V.

(12) is 'wtW1.' which is made of synthetic face fat or metal.
(18) is a lid also made of synthetic resin or metal.

If t 1 (12) and the lid (13) are metal, an electrical insulator is also inserted between the lead +6+ (71) and the lid. (14 is a safety valve.

To demonstrate the effects of the present invention, the nominal output is 12V.
-10Ah battery is connected to 10 single cells in series.
This non-inventive method (5)) and the 10 skewer cells are made individually.
We produced 100 of each using the conventional method (I3) and compared the man-hours and energy density required.

The results are shown in Table 10.

Manufacturing man-hours Energy density (conventional profit, 100. (Wh/l) < W
h/9) A 85 121 5
OB 100 110 48 The product of the present invention requires 15% less manufacturing time and has an energy density of W
In the case of b/kg, an improvement of only about 4% was obtained, but in Wh/l, an improvement of 10% was obtained.

It is estimated that these effects of the present invention will become even greater as the capacity of the 'rfL pond increases.

As described above, the present invention provides a sealed collective alkaline battery that requires fewer man-hours to manufacture and has a high energy density, and has great industrial value.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) show an embodiment of one or more consecutive single cells according to the present invention, in which (a) is an explanatory diagram and (b) is a G(
It is an internal structure diagram in the +(+)AA cross section. FIG. 2 is a diagram showing a state in which the continuous single cells of FIG. 1 are stacked together at the adhesive portion, and FIG. 3 is a diagram illustrating the structure of the battery of the present invention.

Claims (1)

[Claims] Between 152 consecutive synthetic resin films or sheets with electrolyte resistance, a plurality of groups of stone plates are placed at regular intervals, with pressure and precious metals stacked on top of each other via separators. , the periphery of the drawing board group is glued and continuous except for the part that becomes the gas hole or liquid injection port to form one or more single cells,
A closed type aggregate alkali which is characterized in that the single cells are deposited one by one at the adhesion between adjacent single cells, and are electrically connected in series and stored in a tank. J to pond.