Combined positioning frame of lithium ion battery pack

Abstract

The invention discloses a combined positioning frame of a lithium ion battery pack. The combined positioning frame comprises a frame main body (1), wherein the frame main body (1) is provided with a plurality of battery cell patchholes (2) in which to-be-assembled lithium ion battery cells are inserted. The bottom part of the frame main body (1) is provided with a plurality of bearing protuberances at intervals at the position of peripheral edge of each battery cell patchhole (2). By using the combined positioning frame of the lithium ion battery pack disclosed by the invention, the plurality of battery cells can be conveniently positioned and fixed, and can be conveniently welded and assembled together, the fact that a formed lithium ion battery pack is not liable to fail due to external force is guaranteed, the safety performance of the battery pack is ensured and the service life of the battery pack is prolonged.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a combined positioning frame for a lithium-ion battery pack. Background technique [0002] With the worldwide energy crisis and climate warming, a new energy model is urgently needed in the field of transportation, and lithium-ion batteries have attracted widespread attention in the field of transportation due to their green environmental protection and high energy output. At present, Relevant industries around the world have launched extensive research on the application of lithium-ion batteries in this field. [0003] Lithium-ion batteries have the advantages of high working voltage, high specific energy, long cycle life, and no environmental pollution. They are not only widely used in mobile communication equipment and portable electronic equipment, but also widely used in electric vehicles, electric bicycles and electric tools. In terms of large and medium-sized electric e...

AI Technical Summary

Problems solved by technology

For the 8650 type cylindrical lithium-ion battery pack, if it uses a small amount of lithium-ion battery cell combination, you can directly use an electric welding machine to connect the battery cells in series and parallel through nickel strips; if you use a large number of lithium-ion battery cells When combining battery cells, multiple battery cells need to be connected in series and parallel. At this time, how to directly spot-weld these multiple battery cells with nickel strips? Since the positions of multiple battery cells are not limited and fixed, it is not only difficult to locate Welding, and even after welding together, the lithium-ion battery pack is easy to disconnect the battery cells due to the external force of vibration, impact, and drop, causing the battery pack to malfunction and seriously reducing the battery life. safety performance, but also seriously increase the maintenance cost of lithium-ion battery packs, resulting in a serious waste of resources

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