Novel current collector of accumulator

Abstract

The invention provides a novel current collector of an accumulator. The current collector comprises a rectangular frame surrounded by four frame ribs, wherein an upper frame rib of the rectangular frame is provided with a tab, and the rectangular frame is internally provided with a plurality of horizontal ribs and a plurality of vertical ribs which are staggered. The vertical ribs comprises a main vertical rib and auxiliary vertical ribs, the main vertical rib and the tab are in the same central line, and the multiple auxiliary vertical ribs are arranged on the two sides of the main vertical rib at intervals. One ends of the horizontal ribs are respectively connected with the main vertical rib and the auxiliary vertical ribs, and the horizontal ribs are distributed in a downward inclined mode (the horizontal ribs are inclined downwards by forming the inclined angles of 16-32 degrees with the horizontal direction); and the cross section area of the upper frame rib is progressively reduced from the tab taken as the center to the two sides, and the cross section areas of the horizontal ribs, the main vertical rib and the auxiliary vertical ribs are gradually reduced from the upper fame rib downwards. The downward inclined horizontal ribs of the current collector not only play a role in supporting lead plaster, but also achieve an auxiliary current function, so that a main current collector and an auxiliary current collector are continuously thickened from the bottom to the top, the corrosion resistance capability is improved, the electric conduction capability is enhanced, and the utilization ratio of active substances is improved. The current collector can greatly enhance the product quality of the accumulator and prolong the service life of the accumulator.

Description

technical field [0001] The invention relates to a storage battery, in particular to a double current collector grid applied to the storage battery. technical background [0002] A storage battery is a device that directly converts chemical energy into electrical energy. It is a rechargeable battery designed to be recharged through a reversible chemical reaction. [0003] The main part of the battery is the pole plate, which is composed of a grid and lead paste. The grid mainly supports the lead paste and conducts current. The grid is mainly composed of tabs, frame ribs, inner frame transverse ribs and vertical ribs. [0004] Most of the existing grids adopt a structure in which horizontal ribs and vertical ribs are perpendicular to each other, and the number of horizontal ribs is more than that of vertical ribs. This structure makes the current flow long, which is not conducive to large current discharge, and is easy to cause the loss of current energy. . However, the exi...

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Problems solved by technology

[0005] In order to solve the problem that the existing battery grid is not conducive to large current discharge, it is easy to cause current energy loss, and the conductivity is poor, and the battery life is not long, and to improve the product quality and battery performance of the battery

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