When used in welding electrode, CMC can improve its appearance, its quality and its eccentricity. Also, CMC can reduce the welding electrode’s breakage rate. What’ more, CMC can increase the welding electrode’s viscosity and allow it to shape up easily, etc. Due to CMC’s good acid resistance and salt tolerance, the liquid with CMC will have high stability, which is appropriate for the alkaline battery and zinc-manganese battery.