Carbon anode blocks | Source: Handan Qifeng Carbon Company

A prebaked carbon anode (PBA) is a pre-manufactured, shaped carbon block used as the positive electrode (anode) in primary aluminium production via the Hall-Héroult electrolysis process. Unlike the older Söderberg continuous anode technology, prebaked anodes are fully manufactured and baked in dedicated carbon plants before installation in the electrolysis cell — hence the designation "prebaked".

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