Novel power battery pack structure and assembly process thereof

Abstract

The invention relates to the field of power batteries, specifically to a novel power battery pack structure and an assembly process thereof. The battery pack structure comprises a box body used for placing battery cells, wherein the upper end of the box body is connected with a box cover used for protecting the battery cells arranged in the box body; a battery cell group is placed in the box bodyand comprises a plurality of battery cells; the lower end surface of each battery cell is connected with the bottom part of the box body through a structural adhesive; and the battery cells are connected through high-voltage connectors. According to a technical scheme of the invention, through improvement of traditional battery pack structures and production processes, the efficiency of group formation is high; in a traditional battery pack production process, the battery cells needs to be modularized and then assembled to form a required battery pack, while the assembly process provided by the invention omits the intermediate link of battery pack production, i.e., reduces the related production process of battery cell modularization, so the efficiency of group formation is improved; thus,the energy density of a product is improved, and the loss of energy conversion in the process of modularization is avoided.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a novel power battery pack structure and assembly process thereof. Background technique [0002] At present, the grouping method of the new energy power battery system is mainly divided into three steps: the first is to modularize the lithium battery to form a "module". At this stage, there will be about 15% to 20% energy loss. According to the grouping technology The degree of loss is also different for different groups; the second is to group the "modules" again to form a power battery PACK. At this stage, there will be about 15% to 20% energy loss, which also varies according to different grouping technologies; The power battery PACK is grouped with the vehicle according to the power distribution requirements. It can be seen that the superposition effect of energy loss from the battery cell to the power system will cause a large amount of unnecessary energy density loss. For e...

AI Technical Summary

Problems solved by technology

This causes a large loss of energy density in the production of traditional battery packs, and the assembly process is complicated, resulting in a lot of waste of energy and relatively low production efficiency of traditional battery packs. In order to solve the above problems, a new type of battery pack structure and a new battery pack assembly process is now required

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