Lithium iron phosphate & ternary cathode sintering furnaces run continuously at 180–250℃, accompanied by corrosive lithium salt flue gas and frequent cold-hot thermal shock. Common high-temperature coating will crack and lose barrier function within 1–2 years under lithium medium erosion, increasing kiln overhaul frequency. FLDC customized full OM-5 high-temperature anti-corrosion system for lithium cathode sintering…