Battery cover plate and battery assembly

The utility model discloses a battery cover plate and a battery assembly, and the battery cover plate comprises a substrate which is provided with an explosion-proof hole and a liquid injection hole,and the explosion-proof hole and the liquid injection hole penetrate the upper surface and the lower surface of the substrate; the explosion-proof valve is arranged in the explosion-proof hole; and the liquid injection hole cover is connected with the liquid injection hole in a sealing manner. According to the battery cover plate, only the explosion-proof hole and the liquid injection hole are formed in the base plate, and the explosion-proof valve and the liquid injection hole cover are respectively connected with the explosion-proof hole and the liquid injection hole in a sealing manner, sothat the battery cover plate is simple in structure, easy to manufacture and low in processing cost. 本实用新型公开了一种电池盖板及电池组件，包括：基板，所述基板设有贯穿所述基板上表面和下表面的防爆孔和注液孔；防爆阀，所述防爆阀设于所述防爆孔中；注液孔盖，所述注液孔盖与所述注液孔密封连接。本实用新型通过在基板上仅设置防爆孔和注液孔，防爆阀和注液孔盖分