Graphite substrate lead dioxide anodes ( GSLD ) can be used in chlorate and perchlorate cells instead of platinum anodes, but if chromates or dichromates are present in the cells then the current efficiency will be reduced drastically.TiTaN 's Lead dioxide coated graphite anode ( PbO2 graphite anodes ) are known as " LEDGA " . Generally these anodes are called GSLD anodes.