Improvement Of The Sealing For Alkali-Manganese Battery

Alkaline zinc-manganese Battery is widely used all over the world．It has goodperformance of storage,low cost,stable discharge and convenience of carrying．Thesealing of the battery is a crucial factor to the performance of the battery．Due to thedisadvantages of present sealants,leakage of electrolyte often happens．What'S more,the sealing capability affects the performance of the battery．The way to raise thesealing capability is to search for a good additive,which can improve the sealingcapability through adding． According to chemical principles,this article picks out PTFE and nylon66 asadditive．Adding PTFE or nylon66 into the pitch Can improve the sealing capability ofthe pitch．At the same time,the temperature,the time,the amount of addictive,the wayto drop temperature and the time of churning all should be considered．By testing theconstitutions,softening point,moving degree and length of needle of various pitchsamples,we can compare the properties of different sealants can be studied．By usingOf X-ray,the constitutions of the pitch can be indicated which can help US to explainthese changes． This article includes:testing the constitutions,soften point,moving viscosity and needle penetration of various pitches；raising the sealing capability by adding PTFE／nylon66 into the pitches；testing the constitutions,soften point,moving viscosity and needle penetration of raised samples；analyzing and discussing the basic principles of this method．It is showed that soften point,moving viscosity and needle penetration of pitches are increased by adding PTFE／nylon66 and the discharge time,initial voltage,capacity of battery with pitch raised by nylon66 are good and get to the requirement of GB／T7 1 1 2． In a11．the method proposed in this article is available in practical industry use．...