Sodium Carboxymethyl Suspension For Lead Acid Battery Stabilization In Binder Of Cathode And Anode

Sodium Carboxymethyl Cellulose For Battery Industry

CMC, with the strong cohesion, good heat stability, electrical conductivity and electrochemistry property, makes the active substance and electrolyte form the even and dispersive paste, and takes the hydrogen bond effect with the silicon, therefore, it is not only widely used as the binder of cathode and anode, gel for cathode protection, but also widely applied in the silicon base electrode and graphite modification.

Application in gel for cathode protection

As the gel, CMC can make the active substance and electrolyte form the even and dispersive paste, maintain the electrolyte evenly around the active granule, and make the electrolyte evenly and sufficiently cover the active granule surface when battery discharges, meanwhile, it prevents the active granule and electrolyte in the storage from being unevenly settled. Furthermore, it promotes the contact effect between active granule, active substance and collector, and prevents the battery from voltage abnormal dropping when the battery is suffered from the shake or during use. CMC which is applied in gel for cathode protection will show the effect as follows:

*Good viscosity and liquid absorption, and high linearity tractility;

* With a certain viscosity and effectively prevent the battery active substance from being dehydated.

*Good stability, less layering, and good property for battery storage;

*Enhance the electrolyte absorption rate and reduce the electric resistance;

*Use under the normal temperature, and avoid the fluctuation in the end of the terminal voltage of intermittence discharging;

*Good liquid retention, and keep the good performance when the battery is under the normal temperature or high temperature;

*little swaying under the circumstance of negative electrode, and battery stable performance after falling and shaking;

*mix with sodium acrylate and greatly enhance the high current discharge performance of the battery