Negative electrode panel for alkaline dry battery and application of negative electrode panel

Abstract

The invention relates to a negative electrode panel for an alkaline dry battery and an application of the negative electrode panel. The negative electrode panel comprises a horizontal part, wherein one end of the horizontal part downwards extends and is connected with a shoulder part used for supporting; the shoulder part comprises a connecting part and a working part, one end of the connecting part is connected with the horizontal part, and the working part is connected with the other end of the connecting part to form a V-shaped included angle. The negative electrode panel is used for assembling a current collector of the alkaline dry battery; the current collector comprises the negative electrode panel, a copper needle, an auxiliary iron block and a sealing plate; the negative electrode panel is fixedly connected to the copper needle, the sealing plate is mounted on the copper needle and arranged outside the negative electrode panel in a covering manner, and the auxiliary iron block is inserted between the sealing plate and the negative electrode panel. The V-shaped included angle is formed through the connecting part and the working part of the shoulder part, so that the working part and the sealing plate are in point contact with a plane; besides, the working part further has a certain support action on the sealing plate, matching of the sealing plate and a positive electrode casing is enhanced, and the leakage prevention performance is improved.

Description

technical field [0001] The invention relates to a flat plate and its application, in particular to a negative plate for an alkaline dry battery and its application. Background technique [0002] Alkaline batteries are the most successful high-capacity dry batteries and one of the most cost-effective batteries currently available. Alkaline batteries use manganese dioxide as the positive electrode, zinc as the negative electrode, and the negative electrode zinc is also changed from flake to granular, which increases the reaction area of ​​the negative electrode, and potassium hydroxide is the electrolyte. Therefore, the electrical performance can be greatly improved. Generally, the capacity and discharge time of ordinary alkaline batteries of the same type are 3-7 times that of ordinary batteries, and the gap between the two is even greater in low temperature performance. Alkaline batteries are more suitable for high-current continuous discharge and high-voltage working occas...

AI Technical Summary

Problems solved by technology

from figure 2 It can be seen from the figure that the working part of the negative plate is in contact with the sealing plate through two planes, and the surface-to-surface contact mode, due to the large contact area, makes it difficult to maintain the same support force at each point

Therefore, the uneven support force of each point leads to a point being broken, and in terms of the effect of the sealing ring, once a point is broken, the sealing effect is lost, so it is prone to leakage.

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