JPS594451Y2 - Separator for lead-acid batteries - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an acid-resistant storage battery separator.

Conventional separators of this type have a large number of longitudinally parallel ribs protruding from each other by molding, or are corrugated in a corrugated manner. (b) In the case of corrugated ribs, the force in the direction perpendicular to the rib is weak and easy to bend. (C) In the case of linear ribs made of PVC, each rib part is electrolyzed. Since there is no liquid flow, the electrical resistance of the separator increases (
d) Due to the ribs, gas venting is limited in the vertical direction, resulting in poor performance; and (e) the adhesive line falls into the recess between the ribs, resulting in poor adhesion to the glass mat.

The present invention eliminates the drawbacks of such conventional type separators and provides a separator for lead-acid batteries that allows for good degassing before the electrolyte flows. A spherical convex surface 3 and a spherical concave surface 4 are alternately continuous in the direction, and both surfaces 1 and 2 are molded into an even spherical uneven surface shape, and each surface 1,
2, a large number of the spherical convex surfaces 3.3 are arranged over the entire surface at equal intervals in a direction of 45 degrees with respect to the vertical and horizontal directions, and at an angle of 45 degrees with respect to the vertical and horizontal directions. A large number of concave grooves 5 are formed by intersecting each other from a large number of continuous spherical concave surfaces 4, 4, .

The optimum diameter of the spherical concave or convex surface is 3 to 10 mm.

An example of the separator of the present invention having the above structure is shown in the accompanying drawings, and is generally manufactured as follows.

Base paper manufactured using vegetable fibers such as linter pulp and wood pipes, synthetic fibers such as acrylic and polyolefin, or mixed fibers thereof, or base paper manufactured by adding mineral powder such as diatomaceous earth to these raw materials. is impregnated with an acid-resistant thermosetting resin such as a phenol resin, and the resulting resin-impregnated paper is made of a pair of molded rolls having many spherical uneven surfaces regularly and alternately formed on the circumferential surface. is arranged so that its opposing spherical concave and convex surfaces fit into each other.
A spherical convex surface 3 and a spherical concave surface 4 were alternately continuous, and both surfaces 1 and 2 were molded into a uniform spherical uneven surface shape.

That is, the vertical and horizontal cross-sectional shape of the molded plate is a waveform consisting of a series of arcuate irregularities, as shown in FIGS. In this case, spherical convex surfaces 3 and spherical concave surfaces 4 are arranged regularly and continuously in the vertical and horizontal directions, and the convex surfaces 3 and concave surfaces 4 of the same shape and size are formed at equal intervals. .

In other words, on both sides of the plate, many of the spherical convex surfaces 3 are at an angle of 45° with respect to the height and width directions.
On the other hand, between these spherical convex surfaces 3, 3..., there are many continuous surfaces inclined at 45 degrees with respect to the height direction and width direction. This is a molded separator having a shape in which a large number of concave grooves 5 cut out from the spherical concave surfaces 4, 4, .

The thus molded separator is heated and dried to harden the synthetic resin, thereby obtaining the separator of the present invention with the molding fixed.

As described above, the separator according to the present invention has spherical convex surfaces 3, 3, etc. uniformly arranged on both surfaces 1, 2, so that the pressure caused by charging and discharging the storage battery is applied evenly to the sheet metal surface. Because of this, the deformation rate under pressure decreases, and both sides 1 and 2
On the entire surface, either side 1 or 2 is defined by a large number of intersecting arrays of groove strips 5 consisting of a large number of spherical concave surfaces 4, 4, etc. inclined at 45 degrees with respect to the vertical and horizontal directions. Even when facing the electrode plate, gas degassing between them is good, and the liquid surface is well distributed over the entire surface. Even if a commonly used glass mat with diagonal fiber arrangement is used for polymerization, gas degassing is not possible. It has the following effects: the directions match, a good degassing effect can be maintained, and the adhesive can be applied uniformly as a whole, making it possible to bond well with the glass mat.

[Brief explanation of the drawing]

Figure 1 is a perspective view of one example of implementing the present invention, and Figure 2 is its II.
Figure 3 is a cross-sectional view taken along the line III-III. 1.2... Both sides of the separator, 3... Spherical convex surface, 5... ...A concave groove consisting of a spherical concave surface.

Claims (1)

[Scope of utility model registration request] On each of the surfaces 1 and 2, a spherical convex surface 3 and a spherical concave surface 4 are alternately continued in the longitudinal direction in front of the lateral direction, and both surfaces 1 and 2 are molded into a uniform spherical uneven surface shape. 2, a large number of the spherical convex surfaces 3, 3... are arranged over the entire surface at equal intervals at an angle of 45 degrees to the vertical and horizontal directions, and at an angle of 45 degrees to the vertical and horizontal directions. A concave groove strip 5 consisting of a large number of continuous inclined spherical concave surfaces 4, 4...
A lead-acid battery separator consisting of a large number of cross-formed parts.