The invention relates to the technical field of batteries, in particular to a
battery cell and a power utilization device. The
battery cell comprises a cover plate, a shell and a pole group; the cover plate comprises a cover plate body and a first plastic part, the
liquid injection part comprises a surrounding wall and a bottom wall, the bottom wall and the cover plate are oppositely arranged at intervals in the length direction, and the surrounding wall is arranged around the bottom wall by at least one circle so as to define a
liquid injection groove which is open to the
liquid injection hole; an air passing gap is formed between one end, far away from the insulating body in the width direction, of the liquid injection part and the shell, the liquid injection part further comprises an air passing channel penetrating through the
enclosure bulkhead, so that a side exhaust port is formed in the
enclosure bulkhead, and the side exhaust port is connected with the liquid injection groove and the air passing gap. According to the
battery cell structure, the problems that in an existing battery
cell structure,
electrolyte flow guide holes are generally formed below cover plate lower
plastic cement to serve as exhaust holes to guide gas in the battery
cell to the outside, but physical interference is easily formed between the insulating rubber tape on the surface of the pole group and the exhaust holes, then the exhaust holes are blocked, battery
cell exhausting is not complete, and battery cell bulging is caused are solved.