JPS5963662A - Plate for lead storage battery - Google Patents

Abstract

PURPOSE:To reduce the weight of a grid by applying a water-resisting adhesive on one surface of a casted grating for a pasted lead storage battery, then affixing thin paper principally consisting of fiber to the surface, being followed by packing the thus formed complex grid with an active material. CONSTITUTION:After a water-resisting adhesive (d) is applied to one surface of the conventional casted grating having four peripheral frame bones (a) and horizontal crosspieces with a large pitch (P), thin paper (e) is affixed to the surface thereby forming a complex grid. After that, an active material (c) is packed into the complex grid, thereby making a plate for a lead storage battery. The complex grid, since having the four peripheral frame bones and the thin paper (e) affixed with the water-resisting adhesive (d), has a sufficient mechanical intensity necessary during packing of the raw paste (c) despite the large pitch of the crosspieces. Besides, the packed raw paste (c), since being supported by the thin paper (e), has no possibility of falling out or dangling.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of a passive battery for parallel batteries, which enables mass production without sacrificing practical performance, significantly reduces the weight of the conventional lattice body, and provides a one-piece paste type ship. It is a good idea to provide storage batteries.

The lattice of a lead-acid battery has the functions of current collection and retention of active material.

Currently, the lattice body for single cells is thin, about 2NIn or less,
As shown in FIG. 1, a crosspiece pitch P (square) of 4 to 8 squares is generally used. In Figure 1, (a) is a lattice picture frame, and (b) is a lattice crosspiece.

i) is an active material. 988 Such a 1M structure is more than sufficient as a current collector when considered from the functional aspect of the grid described above, but if the crosspiece pitch P is made coarser than that, the raw paste will not be pulled out from the squares of the grid during filling. This is the 1st time when there is a drop in the pressure and the 1st com is stiff, making it impossible to produce good self-priming.

The present invention improves the above-mentioned drawbacks of conventional grids.

Figures 2 and 3 each show an example of the hollow frame of the present invention, in which conventionally a water-resistant adhesive is applied to one side of a cast lattice on which a picture frame (A) is pasted around the rough four circumferences of the crosspiece pitch P. □□□
) is applied, a thin paper material () is pasted and integrated, and the composite lattice body is filled with the active material IC, which is a temporary structure for a storage battery. In addition, in FIG. 2, (b) is the crosspiece of the lattice.

The belly plate of the present invention has a frame on all four sides, and the thin paper is pasted with a water-resistant adhesive, so even if the crosspiece pitch is coarse, the mechanical strength required for filling the raw paste is sufficient. Since the filled raw paste is supported by thin paper, there will be no slippage, no damage, and no damage.

Next, using the composite lattice of the present invention, T! ! ! ! Table 1 shows the preliminary battery performance in comparison with the conventional product.

Table 1 * Compliant with JA80 DIOI Rice 1 Coniferous chemical valves are strengthened with epoxy resin and made into T-paper.

Thickness: 0.08Tyr, Tsubo jl: 14(y/
m2) φ 218 μInC glass fibers are bonded with methacrylic acid ester resin to make T paper.

Thickness, 0.12 am, basis weight: 2Q (g/m)
The products of the present invention are superior in 5bR @ amount compared to conventional products. This is because a large amount of active material is filled in the f part of the lattice, where there is less lattice, and γ is used here.

One of the products of the present invention that uses glass paper has a high rate of discharge performance, and the reason why the discharge duration is particularly excellent is because the surface of the active material is disturbed by the glass fibers and the porosity is reduced when the raw paste is loaded with light. Increased and the electrolyte diffusion is improved1
It's probably rice.

It can be seen that even if the crosspiece pinch is made about 4 times as coarse, the function of the grid as a current collector is sufficient, and the voltage of the 5th grain is not inferior to that of the conventional product. Table 1 shows that The product of the present invention shown in the comparative example was applied to positive and negative slack plates, and the results are for this case. Since the active material of the lead-acid battery battery is a good conductor, it can be easily inferred that even if the pitch of the bars of the grid is made even coarser, the battery performance will not deteriorate much and there will be no problem.

The adhesive used in the present invention shields the lead alloy grid and tissue paper.
It is not preferable to use a material that adheres firmly and whose adhesion strength decreases due to sagging during green paste filling or heating during drying of the tooth plate. It is undesirable to use products that elute harmful impurities during use in H ponds.
- (Example APP), ・7'IJ Jv Acid or (4J') Glyric acid ester type or styrene type thermoplastic resin, cyanoacrylate type, phenol type such as resol or novolac, epoxy type or polyester type. Thermosetting resin, rubber glue, asphalt-based compound, etc. can be used as adhesives. When applying the adhesive, try to minimize the coverage of the crosspiece surface so as not to impair the current collection function of the grid. Needless to say, it is important to do so.

Among the adhesives mentioned above, acrylic acid or methacrylic acid ester emulsions and resols (water-based phenolic resins)
It is particularly easy to work with since it will solidify in about 1 to 2 minutes by coating (transferring) it on one side of the grid, pasting it with thin paper, and heating it to 80 to 250 cm.

The mechanical strength of the lead alloy grid immediately after casting is weak.

As mentioned above, the pasting of thin paper requires heat treatment at 80 to 250°C in the process, and the hardening of the alloy is accelerated. This is particularly convenient.

As detailed above, this study has a frame on all four sides.
Apply water-resistant adhesive to one side of the lattice,
This electrode plate for lead-acid batteries is characterized by a composite lattice formed by pasting a piece of thin paper and filling it with an active material.It can be mass-produced without sacrificing practical performance, and is thin. The present invention is not limited to use only in automobile batteries, but it provides an f-copaste type lead-acid battery by significantly reducing the weight of the conventional lattice body, and its industrial value is great.

[Brief explanation of the drawing]

, Fig. 1 shows the side view of a conventional lattice body for storage batteries, and the history of the lattice body. ! FIG. 3 is a cross-sectional view showing the II plate. Fig. 2 is a cross-sectional view showing an example of the composite lattice for lead-acid batteries used in the present invention, as well as a cross-sectional view showing a 1 cm tentative use of the lattice, and Fig. 8 is a composite lattice for lead-acid batteries used in the present invention. It's the side meat that shows other examples of the body. 6. (a)... lattice picture frame, (b)... lattice crosspiece. (/N...Active material, ni))...Water-resistant adhesive, Su()...thin paper.

Claims (1)

[Claims] Apply water-resistant adhesive to one side of a cast grid with S edges on all four sides, and use fiber as a work material and paste fco thin paper to integrate it.1
This is a temporary product for lead-acid batteries, which is characterized by filling the body with live foods.