Prof. Chen Mengjun, Ph.D. In response to the development needs of the e-waste industry, focusing on cutting-edge issues in metallurgy and environmental disciplines within the field, he established a full lifecycle-based resource-environment assessment method, clarified the resource-environment attributes of typical e-wastes, and proposed that resource recycling should follow the principle of "minimum risk". He overcame key technologies of short-process slurry electrolysis and achieved a breakthrough in directly producing 4N cathode copper from waste printed circuit boards in one step. He pioneered a new paradigm of reverse slurry electrolysis for retired lithium cobalt oxide featuring "cathode deconstruction-ion migration-anode reconstruction", and elucidated the free radical-mediated mechanism of graphene exfoliation via slurry electrolysis.