emergency vent

There are three technical issues to be solved for the design of the GNFC20 nickel cadmium prismatic sealed alkaline battery with plastic case that are to reduce the internal resistance,to decrease the internal pressure during charge and to make the gas vent pressure of safety valve reasonable and steady.

在塑料壳ＧＮＦＣ２０镉镍方形密封碱性蓄电池的设计上，要解决三个技术问题，即较小的内阻，较低的充电内压和稳定合理的安全阀排气压力。