A battery

Abstract

The utility model discloses a battery belongs to lithium battery technical field. The battery of the utility model, including the cover plate subassembly and the electric core, the cover plate subassembly includes the substrate and the pole, the pole is installed on the substrate, still include the connecting piece subassembly, and the connecting piece subassembly includes at least three places bending setting, and the connecting piece subassembly forms multiple plane connecting sections after bending setting, and one plane connecting section is connected with the pole, and another one plane connecting section is connected with the tab of electric core. Through the connecting piece subassembly and carry out multiple bending setting, can be compatible with different battery spacing and height difference, thereby can good adaptation battery's inconsistency makes the cover plate structure of battery can adapt to the assembly according to the different situation of electric core. In addition, the bending setting in the connecting piece subassembly of multiple bending settings can disperse stress, and the combination with the substrate and the stop frame can absorb thermal expansion stress in the charge and discharge cycle of battery, improve the service life of battery.

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