Gas adsorption device, end cover assembly, battery monomer, battery and electric equipment

The embodiment of the invention provides a gas adsorption device, an end cover assembly, a battery monomer, a battery and electric equipment, and belongs to the technical field of batteries. The gas adsorption device is used for a battery cell, and comprises: a body having a chamber; the first pressure relief part is arranged on the body, and the first pressure relief part is configured to be actuated when the internal pressure or temperature of the battery monomer reaches a first threshold value, so that the cavity is communicated with the interior of the battery monomer; the gas adsorption unit is arranged in the cavity, the gas adsorption unit comprises a packaging part and an adsorbent, the adsorbent is used for absorbing gas generated in the use process of the battery monomer, the packaging part is used for packaging the adsorbent, and the packaging part is configured to allow the gas to pass through and prevent the liquid from passing through. The gas adsorption device can improve the safety of the batt