Explosion-proof battery

Abstract

The invention discloses an explosion-proof battery, comprising a battery barrel, a battery unit housed in the battery barrel, a first cap component and a second cap component; the first cap component and the second cap component are used for sealing the battery barrel; the first cap component is electrically connected with the cathode of the battery unit; the second cap component electrically connected with the anode of the battery unit comprises a substrate which is hermetically connected with one end of the battery barrel, an explosion-proof device arranged on the substrate and a protectivecover correspondingly arranged outside the explosion-proof device; wherein, an insulation layer is arranged between the first cap component and the battery barrel; the second cap component is directly connected with the battery barrel; the protective cover is fixed by the substrate. Since the insulation layer is arranged between the first cap component and the battery barrel, the second cap component is directly connected with the battery barrel and no insulation layer is required to be arranged between the second cap component and the battery barrel, and the second cap component and the battery barrel can be sealed without using any flanging, thus eliminating the restriction of the battery to the strength of a battery vessel, reducing the sole weight of the battery and sealing difficulties.

Description

technical field [0001] The invention relates to a battery, more specifically, to an explosion-proof battery 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 persons. In order to prevent the...

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Problems solved by technology

[0007] 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 to provide a battery container with high mechanical strength, such as using a steel shell battery Containers, or battery containers with low mechanical strength, such as battery containers made of aluminum, aluminum alloy, etc., are suitable for explosion-proof batteries

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