Huayi Yin is a professor at the School of Resource and Environmental Science (SRES), Wuhan University (WHU), Wuhan, China. His research interests focus on “metal-energy-environment-sustainability” nexus. In order to solve the challenges of resource scarcity, heavy pollution and high carbon emissions, his group studies the efficient extraction of critical metals from minerals and recycling/upcycling of end-of-life Li-ion batteries, solar panels, wind turbines, super alloys, waste salts, CO2, etc. The results of his research aim to support the sustainable development of the renewable energy supply chain and achieve a net-zero society. The research can be divided into three categories: 1) Resource recycling and intelligent monitoring of renewable energy waste, 2) Green extraction of energy metals and pollution control, and 3) Electrolysis technology-Artificial intelligence-Sustainability.