Lithium battery module

Abstract

A lithium battery module comprises a lithium battery pack, two detachable card supports and a plurality of conductive patches, wherein the two detachable card holders are respectively arranged on thepositive electrode and the negative electrode of the lithium battery pack, and each detachable card holder comprises a plurality of splicing single bodies; each splicing single body comprises a splicing base and a plurality of butt joint buckles, the splicing base is provided with a containing cavity and a welding through hole, the welding through hole is communicated with the containing cavity, the butt joint buckles are arranged on the outer wall of the splicing base, and each butt joint buckle comprises a male buckle and a female buckle; the plurality of conductive patches are attached to each other. The detachable card holder is formed by connecting a plurality of splicing single bodies in a butt joint mode, the number of the splicing single bodies can be increased or decreased according to the number of the battery single bodies in the actually-produced battery module, the card holder does not need to be redesigned, and the design cost is saved; the splicing single bodies are mutually buckled through the butt joint buckles, so that the disassembly and the assembly are convenient; the plurality of splicing single bodies are electrically connected through the conductive patches,so that welding parts are reduced, and the assembling efficiency of the battery module is improved.

Description

technical field [0001] The invention relates to a battery, in particular to a lithium battery module. Background technique [0002] The battery module can be understood as the intermediate product of the battery cell and the pack formed after the combination of lithium-ion cells in series and parallel, and the addition of a single battery monitoring and management device. The output power of the battery module reaches the rated value of the electrical appliance by combining the lithium battery cells in series and parallel with each other. When the lithium battery cells are connected in parallel with each other, the output voltage of the battery pack obtained by the combination remains unchanged, while the capacity and output However, the current is increased; furthermore, the current of the battery module composed of each battery group connected in series remains unchanged, but the voltage increases, so that the output current and output voltage of the battery module meet th...

AI Technical Summary

Problems solved by technology

[0005] However, during the spot welding process, due to objective reasons, there will be phenomena such as welding errors and virtual welding, and the conductive sheet needs to be removed from the battery cell. The battery cell is easily damaged during this process, and it takes a long time. In addition, the number of batteries that can be accommodated by the existing trays is fixed, that is, to manufacture battery modules with different powers, it is necessary to design corresponding battery trays for fixing, and it is necessary to redesign the mold for injection molding. The design cost is high and the flexibility is not flexible enough.

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