Exhaust device, battery cell, battery and electricity-consuming device

Abstract

This application provides an exhaust device, a battery cell, a battery, and an electricity-consuming device. The exhaust device includes an exhaust body, a first venting member, and a second venting member; the first venting member is disposed on the exhaust body; the second venting member is disposed on the exhaust body and is disposed on a side of the first venting member in a thickness direction of the exhaust body, and the first venting member and the second venting member are configured to allow gas to pass through when gas pressure in the battery cell reaches a first threshold. The exhaust device provided by this application facilitates reducing the risk of electrolyte solution leakage inside the battery cell and ensuring normal pressure relief operation of the battery cell, thus further improving the safety performance of the battery cell.

Dependencies are inferred from the claim text.