JPS5944771A - Storage battery - Google Patents

Abstract

PURPOSE:To check short-circuit taking place at an early stage, by a method wherein the cladding type positive pole plates are separated by a zigzag separator from the negative pole plates while the inner wall of a battery jar and the separator zigzagging around the side parts of the positive pole plates are brought in close contact with each other. CONSTITUTION:The cladding type positive pole plates 2 having cylindrical active material holders and the paste type negative pole plates 3 are separated by a separator 4 made of a transversely zigzagged microporous material. And a battery is formed by allowing a separator part 4 zigzagging around the side parts of the positive pole plates 2 and the negative pole plates 3 to make close contact with the inner wall of a battery jar 1 housing them all in the jar. Consequently, the amount of the active material of the positive pole plates 2 facing the space 5 corresponding to the volume of the space 5, between the side parts of the positive pole plates 2 and the battery jar 1 whereinto an electrolyte to be injected, is made almost equal to that of the other spaces, thus enabling discharge depth to be equal and to check the short-circuit taking place at an early stage and extend the battery life.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a storage battery that uses a 1-type @electrode plate and separates the H frame plate and the cathode plate by a horizontally zigzag separator. The purpose is to improve the lifespan of the TTi storage pond by equalizing the efficiency of the active material.

Conventional storage batteries of this type have a structure in which a flat separator is disposed between an anode plate and a cathode plate. However, in such a configuration, the separator must be made larger than the anode plate, which creates a space on the sides of the anode and cathode plates, and the space is filled with multiple electric currents FITl! There was a liquid present. By the way, in a clad type anode plate, the active substance is present on the side of the anode plate via a cylindrical active substance holder, and therefore the active substance on the side is more concentrated than the active substance on other parts. The problem is that it causes a deep discharge reaction. In other words, due to the problem described in niS, the bond between the side and 'lr- of the active substance in this side is 55% higher than that in other parts.
The life of the anode plate is shortened because it falls off during the period, and the active substance that falls off accumulates in multiple layers on this side, causing a short circuit at the face. had.

Recently, a storage battery has been proposed in which the anode plate and the negative plate are separated by a zigzag-shaped separator L=-ta in the direction of lateral force. By the way, in such a storage battery, the separator only needs to have enough space on the sides of the anode plate and the cathode plate to wrap around the sides of the anode plate and the cathode plate.

The present invention has been made in view of the following points, and uses a clamp-type anode plate equipped with a cylindrical active substance holder in a storage battery, and a separator in the shape of a 1f g in the lateral direction. It is characterized in that the cathode plates are separated from each other, and the part of the pallet that wraps around the sides of the anode plate and the cathode plate is in contact with the inner wall of the battery case.

Hereinafter, the present invention will be explained in detail with reference to the drawings showing one embodiment thereof. That is, FIGS. 1 and 2 are respectively a plan sectional view and an enlarged sectional view of the main part. In the drawing, reference numeral 1 indicates a battery case made of an electrolytic resistant TLV material such as PP resin, and inside thereof there are clad type @electrode plates 2. Cathode plate filter of base 1 set and microporous hole f' to prevent short circuit between the two
l: Separate lake 4 consisting of visiting fees is stored. The separator 4 has a zigzag shape in the horizontal direction.

The V4 electrode plate 2 and the cathode plate 6 are separated. Further, the separator is in contact with the inner wall of the battery case 1 at a portion 4A that wraps around the sides of the anode plate 2 and the cathode plate filter.

The present invention has the following configuration (r).

vA to the volume of the space 5 between the side of the electrode plate 2 and the battery cell 2 in which the electrolyte sap is present; Therefore, the release ML depth of the side part is approximately the same as that of the other parts, and therefore, the shedding of the active substance is also uniform.

Therefore, according to the present invention, the life performance of the anode plate is improved compared to the conventional one, and early short circuits are eliminated, thereby extending the life of the storage tank and improving the volumetric efficiency. 5'? - I can do something. As described above, the present invention is of extremely great commercial value.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a plan sectional view and a υ section cross-sectional view, respectively, of embodiments of the present invention. 1... Battery case 2... Anode plate 5... Yin f,
I=, Plate 4... Separator 4A... Portion 5 surrounding the sides of the anode plate 2 and negative @ plate 6σ) of the separator 4... Space. Applicant Yuasa Battery Co., Ltd. Figure 1

Claims (1)

[Claims] A clad-type anode plate with a cylindrical active substance holder is used, and the anode plate and the cathode plate are separated by a separator having a zigzag shape in the horizontal direction, and the separator or the @ electrode plate and the cathode plate are separated. A storage battery characterized in that the part that wraps around the side is in contact with the inner wall of the battery case.