Cylinder battery

Abstract

The embodiment of the invention discloses a cylinder battery which comprises a shell 1, at least one hollow cylinder 2, at least two winding cores 3, upper conductor conflux and lower conductor conflux trays 4, upper cover and lower cover plates 5, cathode electrode and anode electrode columns 6 and liquid injecting holes 8; the electrode columns 6 penetrate through the cover plates 5; the cover plates 5 and the electrode columns 6 are separated by utilizing an insulation material; the cathode electrode and anode electrode column 6 are respectively fixedly connected with the conductor conflux trays 4 of a cathode and an anode; the sealable liquid injecting holes 8 are arranged on the cover plates 5; the hollow cylinder 2 is fixedly connected with the cover plates 5; the hollow cylinder 2 is sheathed in through holes 41 of the conductor conflux trays 4; the winding cores 3 are distributed around the hollow cylinder 2; each of the anode and the cathode of each winding core 3 is provided with a lug, and the lugs of the anode and the cathode of each winding core 3 are fixedly connected with the upper conductor conflux tray and the lower conductor conflux tray 4; the upper conductor conflux and lower conductor conflux trays 4 are respectively connected with the cover plates of the anode and the cathode of the battery; and the cover plates 5 of the anode and the cathode 5 are respectively and fixedly connected with the upper end and the lower end of the shell 1. The heat radiation performance and safety of the battery are improved.

Description

technical field [0001] The technical field of mechanical manufacturing of the present invention particularly relates to a cylindrical battery. Background technique [0002] With the global shortage of mineral energy, rising oil prices, and increasing environmental pollution, people's demand for clean and renewable energy is becoming more and more urgent. As a high-efficiency renewable energy carrier, batteries have been widely used in communications and electronics industries. At present, people have higher and higher demands on the capacity and cycle life of batteries in the field of battery applications. [0003] Take lithium-ion batteries, referred to as lithium batteries as an example: lithium batteries are mainly multi-layer laminated (square cross section), bipolar sheet elliptical winding type (cross section is square) and bipolar sheet circular winding type (cross section is round) three categories. [0004] Among them, the advantage of the multi-layer stacked typ...

AI Technical Summary

Problems solved by technology

figure 1 and 2 The battery shown in the figure forms a high-power and high-capacity cylindrical battery by winding cores in parallel, but the heat dissipation surface is small and the heat dissipation performance is poor, so the safety is poor

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