Multifunctional lithium ion battery

Abstract

The invention relates to the technical field of manufacturing of high-capacity lithium batteries and particularly relates to a multifunctional lithium ion battery. The adopted technical scheme is as follows: the lithium ion battery comprises a battery box used for containing a battery cell group, and a battery box upper cover used for covering an opening of the battery box, wherein the battery box upper cover is provided with positive and negative electrodes; the positive and negative electrodes, a protection circuit board, a bus bar and the battery cell group form a current loop; the battery cell group, the bus bar and the protection circuit board are installed inside the battery box, the battery cell group is installed on an opening of at least one layer of a clamping sleeve, and at least one heat dissipation layer is attached to the periphery of the battery cell group. The lithium ion battery has the advantages that the heat of part of high-temperature areas of part of lithium ion battery can be rapidly absorbed, and is dissipated to other areas of the lithium ion battery, so that the defect of the non-uniform heat distribution of the existing battery can be overcome, and the consistency of the performances of single battery cells of the battery cell group can be kept.

Description

technical field [0001] The invention relates to the technical field of manufacturing high-capacity lithium batteries, in particular to a multifunctional lithium ion battery. Background technique [0002] Electric motorcycles are a low-carbon, green and environmentally friendly means of transportation that are widely used. Electric motorcycles mainly use lead-acid batteries as the power source. Due to the shortcomings of lead-acid batteries, such as short cycle life, low battery specific energy, large weight and volume, and high self-discharge rate, the mileage of electric motorcycles is severely limited. Although lithium-ion batteries have the advantages of high specific energy, long cycle life, light weight, and low self-discharge rate, however, the disadvantages of lithium batteries cannot be ignored, especially because of overcharge or overdischarge. Problems such as overflow gas cause lithium batteries to swell or explode from time to time. Contents of the invention ...

AI Technical Summary

Problems solved by technology

Electric motorcycles mainly use lead-acid batteries as the power source. Due to the shortcomings of lead-acid batteries, such as short cycle life, low battery specific energy, large weight and volume, and high self-discharge rate, the mileage of electric motorcycles is severely limited.

Although lithium-ion batteries have the advantages of high specific energy, long cycle life, light weight, and low self-discharge rate, however, the disadvantages of lithium batteries cannot be ignored, especially because of overcharge or overdischarge. Problems such as overflow gas cause lithium batteries to swell or explode from time to time

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