Cover plate, battery shell, packaging method, battery and electric equipment

The invention discloses a cover plate, a battery shell, a packaging method, a battery and electric equipment. The cover plate comprises a cover plate body and a flange arranged on the periphery of the cover plate body, and the flange and the cover plate body form a step structure; and a weight reduction opening is formed in the cover plate body. The periphery of the cover plate is provided with a step structure, so that the cover plate is tightly abutted against the shell. The cover plate is provided with the step structure and the weight-reducing opening, so that the thickness of the cover plate can be reduced while enough strength is kept, and the weight is effectively reduced; meanwhile, through the step structure, a welding platform for the cover plate and the shell is provided, welding operation of the cover plate and the shell can be carried out more easily, and the welding quality and the connection reliability are ensured. 本申请公开了一种盖板、电池壳、封装方法、电池和用电设备。盖板包括盖板本体以及设置于盖板本体周缘的法兰，法兰与盖板本体形成台阶结构；并且盖板本体上设置减重开口。