EXHAUST DEVICE, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

The present invention provides an exhaust apparatus, a battery cell, a battery, and an electric apparatus, and relates to the field of battery technologies. The exhaust apparatus includes an exhaust body and an exhaust mechanism, where the exhaust mechanism includes a connection member and a ventilation member that are provided on the exhaust body, the connection member is configured to connect the exhaust body, the connection member is provided with a plurality of first through holes, the ventilation member covers the plurality of first through holes, and the ventilation member is configured to, when a pressure of gas inside a battery cell reaches a first threshold, exhaust the gas to the outside of the battery cell through the plurality of first through holes. The connection member includes a connection portion formed between two adjacent ones of the first through holes, and the connection portion is configured to attach to the ventilation member to limit deformation of the ventilation member. This application can meet internal gas exhaust requirements of the battery cell, and can also ensure safety performance of the battery cell.