GAS VOLUME MEASUREMENT APPARATUS

Embodiments of this application provide a gas volume measurement apparatus. The gas volume measurement apparatus is configured to monitor volume of gas produced during formation of a battery and includes a delivery device and a measurement device. The delivery device connects the battery and the measurement device and is configured to remove hazardous substances from gas produced by the battery and deliver the gas to the measurement device. The measurement device is configured to measure volume of the gas produced by the battery. According to the technical solution of this application, volume of gas produced during formation of the battery can be monitored, so as to form a better SEI film, thereby improving performance of the battery.