Battery pole plate and battery

Abstract

The invention discloses a battery pole plate and a battery. The battery pole plate is formed by connecting two cuboids with width difference in an end-to-end way and comprises a conductive substrate, wherein the conductive substrate comprises a main body metal strap and auxiliary metal straps, a plurality of holes are formed in the main body metal strap and are used for filling active substances, and the auxiliary metal straps are in one-to-one correspondence to the holes for filling the active substances and partially cover the holes for filling the active substances. The invention also provides the battery of the battery pole plate. On one hand, the adhesive forces of the active substances can be increased, and on the other hand, the tensile strength of the main body metal strap also can be improved, so that the multi-aspect performance of a product can be improved; and moreover, the short-circuit probability of the battery during the application process is reduced, the safety of the battery is greatly improved, and the operation requirement difficulty of a winding worker is reduced.

Description

technical field [0001] The invention relates to a battery, in particular to a battery electrode sheet. Background technique [0002] In recent years, with the improvement of people's living standards, there are more and more electrical appliances such as communication and digital products, electric tools, instruments and meters, and electric toys, and the types of batteries used in conjunction with them are also rapidly increasing. At present, Batteries have been widely used in every aspect of people's daily life. With the rapid expansion of the battery market, people's requirements for its capacity and performance are also getting higher and higher. [0003] The battery is composed of electrode sheet, electrolyte, separator and casing. Among them, the core material electrode sheet is composed of an active material and a conductive matrix. The conductive matrix plays the role of conducting current, uniformly distributing the current potential of the electrode surface, and s...

AI Technical Summary

Problems solved by technology

This kind of rectangular parallelepiped pole piece with the same width from front to back has strict requirements on the winding of high-capacity batteries, and the proficiency of employees must be high. A slight movement of the pole piece will easily lead to a high positive electrode at the end of the battery cell, and the probability of short circuit of the battery after sealing will increase. , and the requirements for the tolerance of the rolling groove are also stricter, and if it is too large, it will easily lead to an increase in the probability of short circuit of the battery

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