PLASTIC PART, END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE

A plastic part, a battery cell, a battery, and a power consuming device. The plastic part includes: a plate-shaped body, where the body is provided with a first through hole, and the first through hole penetrates through the body in a thickness direction; and a first reinforcing member, disposed on the body and protruding from a surface of the body, where the first reinforcing member is located around the first through hole and is close to the first through hole.