High voltage batteries for vehicles

Abstract

The present invention provides a high-voltage battery for vehicles, which includes a first plate, a second plate, and a third plate, the first plate, the second plate, and the third plate are joined to be stacked on each other and have a The battery unit is inserted into the space. The bus bar includes: a first lead inserted into a side boundary of the first plate and the second plate so as to be in contact with a terminal of the battery cell, a lead wire inserted into a side boundary of the second plate and the third plate so as to contact A second lead wire that is contacted by a terminal of another battery cell, and a connecting piece that connects the first lead wire to the second lead wire.

Description

technical field [0001] The present invention relates to a high-voltage battery for a vehicle, which can simplify an assembly process, can reduce the number of parts, and can assemble all battery cells having various shapes using the same process. Background technique [0002] There are several problems with prior art high voltage batteries for vehicles. Since the lead portion of the battery cell (cell) is welded by laser beam, conduction resistance of electric current is unstable, and it is difficult to manage micro-gap. Since a peripheral micro-gap occurs when there is a defect in welding, it is necessary to ensure a space for a special fixture (jig; jig) required in the welding process. The size of the battery module is increased due to securing an excess module space for welding. A physical blocking structure utilizing cell swelling is complicated due to the complexity and risk of the current blocking structure, and fire risks such as explosion and short circuit rise du...

AI Technical Summary

Problems solved by technology

Due to the complexity and risk of the current blocking structure, the physical blocking structure utilizing cell swelling (swelling) is complicated, and the risk of fire such as explosion and short circuit rises due to the delayed response to swelling

[0003] In the case of the prior art, the assembly process is complicated due to too many components, and a separate battery cell sensing structure is required, so that the sensing structure connection of the electrodes is complicated

In addition, it is not easy to distinguish whether the solder joints between battery cells are good or not in the manufacturing process, and the type of battery cells is changed in response to the battery capacity used for each vehicle model, resulting in an increase in line equipment investment

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