32results about How to "Increase the effective bonding area" patented technology

The embodiment of the utility model provides a battery monomer, a battery device and electric equipment. The battery monomer comprises an electrode assembly, a shell and an insulating film, the outer surface of the shell comprises a third surface, two first surfaces and two second surfaces; the insulating film wraps the outer surface of the shell, the insulating film comprises a main body area and two ending areas, the two ending areas respectively cover the two second surfaces, each ending area comprises a first folding lug, a second folding lug and a third folding lug which are respectively in angled connection with the main body area, and the third folding lug is provided with a first edge and a second edge which are opposite in the first direction; the ending area is configured to form at least parts of the first folding lug, the second folding lug and the third folding lug through separation of the first edge and the second edge, the first edge extends in the direction away from the second edge, and the second edge extends in the third direction or extends in the direction away from the first edge. The risk of warping of the insulating film can be reduced.