Non-crimping cylindrical battery

Abstract

The invention relates to a non-crimping cylindrical battery, which is provided with a housing, a sealing rubber ring, an upper shell, a battery roll core and a central cylinder. In the practical application process, when it is necessary to assembly the non-edge-curling cylindrical battery, the battery roll core is put in a battery chamber, the sealing rubber ring sleeves the opening end of the housing, and then the upper shell is pressed into the housing so as to complete the assembly and packaging. During the processing process, the upper shell is enabled to be stably fixed in the housing dueto the mutually pressing between an annular locking wall and the sealing rubber ring, the housing has a transverse locking force on the upper shell, and the sealing rubber ring has longitudinal friction on the upper shell, so that the sealing performance of the non-crimping cylindrical battery is greatly improved. Meanwhile, when the internal pressure of the non-crimping cylindrical battery is too high, the upper shell can partially break away from the housing under the action of the internal pressure, thereby timely performing a pressure release operation, preventing battery explosion or battery electrolyte eruption, and being high in safety coefficient.

Description

technical field [0001] The invention relates to the technical field of battery structures, in particular to a non-curling cylindrical battery. Background technique [0002] At present, a battery refers to a cup, tank or other container or part of a composite container that contains an electrolyte solution and a metal electrode to generate an electric current, and is a device that can convert chemical energy into electrical energy. It has positive pole and negative pole. As technology advances, batteries generally refer to small devices that can generate electricity. Such as solar cells. The performance parameters of the battery mainly include electromotive force, capacity, specific energy and resistance. Using the battery as the energy source can obtain stable voltage, stable current, stable power supply for a long time, and a current that is little affected by the outside world, and the battery structure is simple, easy to carry, easy to charge and discharge, and is not ...

AI Technical Summary

Problems solved by technology

First, the crimping operation process is relatively cumbersome and requires high assembly precision, which will undoubtedly increase the operating cost of the enterprise; second, when the internal pressure of the battery assembled by crimping is too large, the battery structure cannot release the pressure in time, resulting in battery failure. Explosion or eruption of battery electrolyte is a great safety hazard

In addition, when the existing battery structure is assembled, when the battery cover is pressed into the battery case, the battery cover is likely to come into too strong physical contact with the tabs of the battery cell, crushing the tabs of the battery cell, making the battery unable to work properly

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