Battery pack capable of superposing electric quantity and voltage

Abstract

The utility model relates to the technical field of power batteries, in particular to a battery pack capable of superposing electric quantity and voltage, which comprises an upper-layer module and a lower-layer module, the upper-layer module comprises a first bracket and a plurality of upper battery cell groups arranged in the first bracket, and positive and negative electrodes of two adjacent upper battery cell groups are sequentially and reversely distributed; the upper module comprises a first support and a plurality of upper battery cell groups arranged in the first support, the lower module comprises a second support and a plurality of lower battery cell groups arranged in the second support, the upper module and the lower module can be electrically connected in an up-and-down stacking mode, and the upper module, the middle module and the lower module can be further stacked. In this way, the electric quantity and the energy density of the battery pack can be improved, more comfortable use experience is provided for a user needing long endurance, in addition, the upper layer module, the middle layer module and the lower layer module can be directly welded through laser, professional welding workers at the position are omitted, cost is saved, and the battery pack is more environmentally friendly.

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