TOP COVER ASSEMBLY FOR BATTERY CELL, AND BATTERY

Provided in the present application are a top cover assembly for a battery cell, and a battery. The top cover assembly comprises: a top cover, wherein the top cover has a first surface and a second surface which face away from each other, and the top cover is provided with electrode post through holes penetrating the first surface and the second surface; electrode posts, wherein the electrode posts are connected into the electrode post through holes in a matching manner; and sealing members, wherein each sealing member comprises a first sealing lip, a second sealing lip and a continuous bending portion, the first sealing lip is connected to the second sealing lip by means of the continuous bending portion, the sealing members are mounted into the electrode post through holes and are sleeved on the electrode posts, and the first sealing lip and the second sealing lip respectively match the first surface and the second surface, so as to achieve sealing between the electrode posts and the top cover. The top cove