A kind of lithium battery and production method thereof

Abstract

The invention provides a lithium battery and a production method thereof. The lithium battery comprises a cylindrical battery body and two electrode lugs, wherein the battery body comprises a rolling core and a packaging film, the rolling core is packaged in the packaging film by thermal compounding at high temperature, and the two electrode lugs are arranged at the same end of the battery body; each of the two electrode lugs is provided with a first end and a second end, the first ends are needle-shaped and exposed out of the packaging film, each of the second ends takes a shape of a flat band, the second ends of the electrode lugs are connected with the rolling core, and the second ends are partially exposed out of the packaging film. The electrode lugs arranged at the same ends are matched with a battery interface of a cylindrical electronic component, so that the battery can be conveniently inserted and installed, the production efficiency of the cylindrical electronic component is improved, and in addition, the production cost of electronic cigarettes is reduced. In addition, according to the lithium battery and the production method thereof, high-temperature thermal compounding packaging is adopted, so that the packaging effect of the lithium battery is good, and the safety performance is high.

Description

technical field [0001] The invention relates to the field of lithium battery manufacturing, in particular to a lithium battery and a production method thereof. Background technique [0002] The power supply of traditional cylindrical electronic components on the market is usually powered by a soft-packed cylindrical polymer battery. For example, an electronic cigarette lighter device uses this lithium battery. The tabs of this battery are respectively set at both ends of the battery. For cylindrical electronic components such as electronic cigarettes, the interface with the battery is set at the same end to save space. When installing, one end of the tab is connected to the interface by welding an electronic wire, and the other end of the tab also needs to be welded to the interface by an electronic wire. Therefore, the tabs provided at both ends bring inconvenience to the installation of this electronic cigarette, resulting in an increase in production cost, and the uneven ...

AI Technical Summary

Problems solved by technology

[0002] The power supply of traditional cylindrical electronic components on the market is usually powered by soft-packed cylindrical polymer batteries. For example, electronic cigarette lighting devices use this kind of lithium battery. The tabs of this battery are respectively set at both ends of the battery. For cylindrical electronic components such as electronic cigarettes, the interface with the battery is set at the same end to save space. When installing, the tab at one end is connected to the interface by welding the electronic wire, and the tab at the other end also needs to be connected to the interface by welding the electronic wire. Therefore, the tabs provided at both ends bring inconvenience to the installation of this electronic cigarette, resulting in an increase in production cost, and the uneven welding quality also makes the quality of the electronic cigarette a potential safety hazard; another kind of capacitive battery, its tab Although it is set at the same end of the battery, because its packaging adopts the method of physical blockage packaging and hard shell packaging, the packaging effect is not good and the safety performance is poor

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