A soft pack lithium battery pack assembly structure

Abstract

The invention discloses a soft-packed lithium battery pack assembly structure, comprising a battery box, a warehouse door, a positive electrode connecting plate and a negative electrode connecting plate at both ends of the battery box, and a lithium battery pack, the warehouse door is arranged at one end of the battery box, and the negative electrode connecting plate Set on the warehouse door, the lithium battery pack includes several series-connected soft pack batteries and a honeycomb heat exchange plate, and the two are aligned and press-fitted through an aluminum plate frame, and a heat exchange frame is installed at the end of the heat exchange plate. A heat-conducting plate is installed. The beneficial effects of the present invention are: the device adopts a flexible assembly structure, which reduces the use of external fixing parts, thereby reducing the puncture risk when the battery is used, and at the same time, through multiple heat conduction methods, the battery heat is exported through multiple sets of heat exchange structures. , On the premise of not affecting the airtight working environment inside the battery, the heat is evacuated, and the problem of serious battery aging caused by the low-efficiency cooling of the traditional battery assembly structure is solved.

Description

technical field [0001] The invention relates to an assembly structure of a soft-pack lithium battery pack, belonging to the technical field of battery manufacturing. Background technique [0002] In the application of electric vehicles, lithium battery packs are the most common energy supply equipment; lithium battery pack bags are mostly square column structures, which are formed by a large number of lithium batteries in series and parallel. The requirements are very high. The soft-pack lithium battery is a battery structure newly developed in recent years, which is formed by wrapping a layer of polymer shell on the liquid lithium-ion battery to form a battery pack. The structure is packaged with aluminum-plastic film. In the event of a potential safety hazard, the soft-pack battery will only bulge and crack at most, and there will be no risk of leakage and explosion of the hard-pack battery. The safe battery energy source of soft-pack lithium battery pack can be obtained...

AI Technical Summary

Problems solved by technology

[0003] The assembly structure of the existing soft-pack lithium battery packs is often fixed by bolts. When extrusion collisions occur, it is easy to cause damage to the battery pack structure by the fixed parts of the device. Moreover, the existing soft-pack lithium battery packs The assembly structure of the battery is often insulated internally during heat exchange, and cannot conduct heat in time. Long-term use will have a certain impact on battery life.

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