JPS59139568A - Height type electrode plate for lead storage battery - Google Patents

Abstract

PURPOSE:To reduce a voltage drop in the height direction of a battery by providing in a body several positive electrode plate single bodies or negative electrode plate single bodies on an electrode plate frame containing good conductivity metal in itself into a multistage by means of welding. CONSTITUTION:An electrode plate frame 1 is composed of lead or a lead alloy, and formed by casting metal 2 with good conductivity such as copper or aluminum, etc. Further, an ear part 3 for leading out current is provided on the electrode plate frame 1. Several positive electrode single bodies or negative electrode plate single bodies 4 into each of which an active material has been filled are prepared, and provided in a body into a multistage within the electrode plate frame 1 and on the electrode plate frame 1 by welding. A voltage drop inside the electrode plate 4 is a little since copper or aluminium, etc., is contained within the electrode plate frame 1, so that it is possible to raise the efficiency of charge-and-discharge energy.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a higher height compared to the floor area than the conventional
The present invention relates to the structure of positive and negative electrode plates used in lead-acid batteries with a large capacity of 30,000 AH, excellent discharge characteristics, and IC content.

Lead-acid batteries using such electrode plates are sometimes used as the main power source of submarines, for example.

Taking a conventional lead-acid battery of about 10,0 OOAI-t as an example, this capacity has a height of about 1 m x width of 0.5 m.
There are 10 commercially available products with a length of n+X of 0.5 m. The positive and negative electrode plates used in this storage battery are formed only of lead or lead alloy lattices, which are filled with an active material. However, for example, with a large capacity of 20,000 to 30,000 AH, the height is about 2I11 or more x width O, Sm x length 0.5
1+1, that is, the floor area is the same as before, but only the height is about 2 to 3
(In the high type lead-acid battery No. 8, the structure of the electrode plate and 'v
JvF has to change drastically. The reason for this is that when electricity is applied to the storage battery from the top of the storage battery, the voltage drop inside the electrode plate becomes large in a grid made mainly of lead or lead alloy, and the charge and discharge characteristics deteriorate significantly.In particular, the high rate discharge characteristics There are characteristic limits due to height restrictions due to descent.

The present invention solves the above-mentioned drawbacks by forming an electrode plate frame containing a highly conductive metal such as copper or aluminum, and incorporating several positive electrode plates or negative electrode plates within the electrode plate frame. The present invention provides a tall electrode plate for a lead-acid battery that reduces the voltage drop in the height direction by providing the electrode plate in multiple stages and integrally with the electrode plate frame by welding or the like.

Hereinafter, the present invention will be specifically explained using the drawings.

Figures 1 and 2 show an embodiment of a high-shaped electrode plate for a lead-acid battery according to the present invention, in which 1 is a plate frame formed by casting a metal 2 with good conductivity such as copper or aluminum. , made of lead or lead alloy. Note that the shaded areas in Figure 1 are copper,
This is a part in which a metal 2 such as aluminum is built-in.

Further, the electrode plate frame 1 is provided with an ear portion 3 for taking out a current. Reference numeral 4 denotes a single positive electrode plate or a single negative electrode plate filled with an active material, several of these single positive electrode plates or single negative electrode plates are prepared, and they are placed in the electrode plate frame 1 in multiple stages and welded to the electrode plate frame 1. It is integrally provided by.

Next, we manufactured a high-sized lead-acid battery according to the present invention using positive and negative electrode plates having the structure as in the above embodiment, and a conventional high-sized lead-acid battery using conventional positive and negative electrode plates made only of lead alloy grids. Figure 3 shows the results of a discharge test at 51-IR and 10HR. In addition, such a test is performed based on the height of the electrode plate,
The width was the same as a high-format lead-acid battery with a capacity of 20,000 AH, but the number of electrode plates was reduced to make the battery 1/3 the capacity.

As is clear from FIG. 3, there is a large difference in voltage value between the product of the present invention and the conventional product, and it can be seen that the voltage improvement drop of the product of the present invention is large.

As described above, in the present invention, since copper, aluminum, etc. having good conductivity are used, the voltage drop inside the electrode plate is small, and therefore the charging/discharging energy rate can be increased.

Copper, aluminum, etc. are impurities in lead-acid batteries, but since they are built into the electrode plate frame, they do not dissolve μH and adversely affect battery characteristics.

Furthermore, the reliability is high because the metal elution can be prevented and checked using the electrode plate frame alone. In addition, the positive electrode plate and the negative electrode plate each have a circular production method for mass-produced products, and can be mass-produced at low cost. Furthermore, the single positive electrode plate J3 and the single negative electrode plate can be manufactured using conventional equipment, and can be made larger by fitting them into the electrode plate frame.

As described above, according to the present invention, the discharge characteristics of high-type lead-acid batteries, which are taller than the floor area and have a large capacity of 20,000 to 30,000 A +-1, can be significantly improved compared to conventional ones. Qin has great advantages such as being able to.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the high-shaped electrode plate for lead-acid batteries of the present invention, FIG. 2 is a sectional view taken along line 8-△ in FIG. 1, and FIG. 3 is a high-shaped electrode plate for lead-acid batteries of the present invention. 1. It is also a characteristic diagram that does not show the discharge characteristics of a high-sized lead-acid battery using conventional electrode plates. 1... Electrode plate frame 2... Metal with good conductivity such as copper or aluminum 4... Positive electrode plate alone or negative electrode plate independent labor
1 圀 oh 7 4λ 3 cause

Claims (1)

[Claims] In high-sized electrode plates for lead-acid batteries used in lead-acid batteries that have a large capacity and are tall compared to the floor area, an electrode plate frame containing a metal with good conductivity such as copper or aluminum is formed, and the electrode plate frame is A high-sized electrode plate for a lead-acid battery, in which several positive electrode plates or negative electrode plates are arranged in multiple stages and integrated by welding or other means to the electrode plate frame.