With the rapid development of the new energy industry, the recycling of spent lithium batteries has become increasingly important. Among them, waste lithium battery black mass is the most valuable intermediate product in the industrial chain, known as a genuine “urban mine”.
Waste lithium battery black mass is the fine black powder obtained from retired power batteries and consumer lithium batteries through standardized processes: safe discharging, mechanical crushing, physical sorting, and separation of positive and negative electrode materials. It accounts for 30%–40% of the total weight of spent lithium batteries and concentrates most of the valuable metals.
In terms of composition, black mass from ternary lithium batteries is rich in strategic metals such as lithium, nickel, cobalt, and manganese, with resource grades far higher than natural ores. Black mass from lithium iron phosphate batteries mainly contains lithium, iron, and phosphorus. After purification and regeneration, these metals can be reused to produce new battery materials, realizing a closed-loop cycle from “battery to battery”.
Practically speaking, the value of waste lithium battery black mass lies in three aspects:
- Resource substitution: Recycling 10,000 tons of black mass reduces the mining of tens of thousands of tons of primary ore and lowers dependence on imported mineral resources.
- Environmental protection & low carbon: The energy consumption and carbon emissions of producing recycled materials are much lower than those of primary smelting, supporting carbon peaking and carbon neutrality goals.
- Economic feasibility: As a compliant recycled intermediate material, black mass has formed a stable market system, helping the industrial chain reduce costs and improve efficiency.
Compliant treatment is the prerequisite for safe and efficient utilization. Only qualified black mass produced through environmentally friendly dismantling, harmless treatment, and precise sorting can enter formal smelting and battery manufacturing chains, avoiding environmental pollution and ensuring material stability.
Against the background of the booming decommissioning of power batteries and the improvement of recycled material standards, waste lithium battery black mass is no longer “waste”, but a strategic recycled resource supporting the sustainable development of the new energy industry. Standardized recovery, efficient utilization, and closed-loop regeneration will maximize the value of black mass and drive the high-quality development of the new energy circular economy.
