Closing battery with explosion-proof function

Abstract

The invention discloses a close cell with explosion-resistant function, which includes a cell cylinder, a cell unit contained in the cell cylinder, end cap elements for sealing two ends of the cell cylinder. The end cap elements are respectively connected with anode and cathode of the cell unit, the end cap element of one end is equipped with a explosion-resistant device, wherein the end cap element equipped with the explosion-resistant device is directly connected with the cell cylinder, a insulated layer is arranged between the end cap element of the other end and the cell cylinder. Because the insulated layer is arranged between the end cap element without explosion-resistant structure and the cell cylinder, the end cap element with the explosion-resistant structure can be directly connected width the cell cylinder, so that, a insulated layer is not needed to arrange between the end cap element with the explosion-resistant structure and the cell cylinder, structure of the end cap element is simplified, limitation of cell cylinder intensity is resolved, aluminum alloy cylinder with small intensity can also employ the structure, sealing difficulty and weight of cell is greatly reduced.

Description

technical field [0001] The invention relates to a closed battery, more specifically, to a closed battery with explosion-proof function capable of bursting and releasing pressure when the temperature rises or the internal pressure of the battery rises. Background technique [0002] With the rapid development of audio, video camera equipment, personal computers and other electronic equipment in the direction of portability and mobility, high-capacity non-hydrolyzed secondary batteries represented by various alkaline batteries and lithium-ion batteries have become the The first choice for device drive power. [0003] Because this kind of high-capacity battery is sealed in a closed container, when the charger is overcharged or misused, abnormal gas will often be generated inside the battery. The accumulation of abnormal gas will cause excessive pressure inside the battery, resulting in The rupture of the battery presents a danger such as injury to electronic equipment or person...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned defects, the purpose of the present invention is to overcome the above-mentioned technical defect that the explosion-proof device cannot be installed on the cover assembly with low mechanical strength of the battery container in the above-mentioned prior art, and provide a battery container with high mechanical strength, such as: using a steel shell The battery container, or the battery container with low mechanical strength, such as the battery container made of aluminum, aluminum alloy, etc., can be used as a closed battery with explosion-proof function.

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