Battery cover plate, cover plate assembly, battery and vehicle

The embodiment of the utility model provides a battery cover plate, a cover plate assembly, a battery and a vehicle. The battery cover plate comprises a cover plate body and at least two positioning blocks, the cover plate body comprises a mounting surface, the mounting surface comprises two opposite sides, the at least two positioning blocks are respectively fixed on the two sides of the mounting surface, and the positioning blocks are used for positioning and limiting the cover plate body when the cover plate body is connected with the battery shell. 本实用新型实施例提供了一种电池盖板、盖板组件、电池及车辆。该电池盖板包括：盖板本体以及至少两个定位块；盖板本体包括安装面，安装面包括相对的两侧，至少两个定位块分别固定在安装面的两侧，定位块用于在盖板本体与电池壳连接时，对盖板本体进行定位及限位。