August 2011: JOM Article - Welcome to TMS
It was initially employed in the conversion of standard wet paste VS Søderberg pots to the "Sumitomo" dry anode paste Søderberg technology in the 1980s. But in recent years graphitized cathode blocks have proven to be especially successful in reducing the cathode voltage drop in modern prebake pots, thus allowing smelters to increase the potline amperage even higher.