A heat-shrinkable plastic film shell disposable lithium ion battery and its manufacturing method

Abstract

The invention discloses a disposable lithium-ion battery with a heat-shrinkable plastic film casing and a manufacturing method thereof. The lithium-ion battery includes a lithium-ion battery cell, a terminal positioning piece and a cover plate respectively provided at both ends of the lithium-ion battery cell, a terminal positioning piece drawn from the inside of the lithium-ion battery cell and extending to the outside of the terminal positioning piece. The positive electrode guide pin and the negative electrode guide pin are provided with a heat-shrinkable plastic film shell on the lithium-ion battery cell. Liquid injection and exhaust holes are arranged on the terminal positioning piece. A plug needle for sealing the liquid injection vent hole is arranged on the liquid injection vent hole. The positive electrode guide pin and the negative plate guide pin, and the liquid injection and exhaust holes are arranged on the same end surface of the terminal positioning piece. The invention has the effects of increasing the capacity of lithium-ion battery cells, keeping the volume unchanged, low cost, practical, safe to use, and more suitable for automatic assembly.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a disposable lithium-ion battery with a heat-shrinkable plastic film casing and a manufacturing method thereof. Background technique [0002] At present, the bottlenecks of electronic cigarette products on the market are prominently reflected in: first, the volume and capacity of lithium-ion batteries. For example, the capacity of the battery is large, and the volume is also large. The battery capacity is large, which has the advantage of increasing the number of puffs of the electronic cigarette, but the volume of the battery increases with the increase of the capacity, which loses the authenticity of the simulated cigarette, and is seriously distorted in appearance compared with the real cigarette. Second, the batteries of electronic cigarettes are mainly rechargeable lithium-ion batteries currently on the market, and rechargeable lithium-ion batteries are also used ...

AI Technical Summary

Problems solved by technology

For rechargeable lithium-ion batteries, factors such as the life and safety of repeated charging should be considered in the design, so the cost of manufacturing materials increases, and the process is relatively complicated, resulting in high prices for electronic cigarettes.

In addition, the battery casing of the existing electronic cigarettes is relatively thick, so the volume of the batteries of the same model and specification becomes smaller, the battery capacity is correspondingly smaller, and the number of puffs for smoking is also reduced.

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