Battery tag, battery base and battery

Abstract

The invention relates to a battery tag, a battery base and a battery. The materials of the battery tag and the battery base are formed by fiber which is prepared from one or more than one of polyolefin substances and subjected to surface hydrophilic treatment. Because the materials of the battery tag and the battery base are formed in such a way that fiber which is solely prepared from one of polyolefin substances including polyethylene, polypropylene and the like or is prepared from the mixture of the polyolefin substances is subjected to surface hydrophilic treatment, the battery tag and the battery base can absorb alkaline, have the capability of preserving water, can resist alkaline and realize insulation, the problem of liquid injection difficulty is solved. In addition, the battery tag and the battery base can adsorb part of electrolyte to increase the liquid injection quantity of the battery by 0.05g to 0.2g and improve the performance of the battery. In the process of recycling the battery, the electrolyte which is adsorbed on the battery tag and the battery base can be released into a battery cell so that the service life of the battery can be prolonged by more than 40 weeks.

Description

【Technical field】 [0001] The invention relates to a battery device, in particular to a battery face sheet, a battery bottom pad and a battery. 【Background technique】 [0002] At present, in the manufacturing process of alkaline secondary cylindrical batteries, in order to prevent the short circuit caused by the contact between the bottom of the battery cell and the bottom of the battery casing, the alkaline secondary cylindrical battery uses a non-alkali-absorbing material as the bottom pad for isolation protection; in order to prevent the top of the battery cell from contacting the positive electrode The contact between the cap and the current collector causes a short circuit, and the non-alkali-absorbing material is used as a face sheet for isolation and protection. [0003] Alkaline secondary cylindrical batteries are injected with needles. If the dough sheet does not absorb alkali, it will be difficult to insert alkali. If a long needle is used to directly insert alkali ...

AI Technical Summary

Problems solved by technology

[0003] Alkaline secondary cylindrical batteries are injected with needles. If the dough sheet does not absorb alkali, it will be difficult to insert alkali. If a long needle is used to directly insert alkali into the battery cell, it is easy to insert into the battery cell and cause malfunction.

At the same time, both the bottom pad and the surface sheet occupy a certain space inside the battery, which limits the internal space of the battery and limits the amount of liquid injection, which is not conducive to improving the performance of the battery in all aspects.

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