Abstract: This is an essay in the field of ceramics and composites. With the rapid development of the new energy vehicle industry, the production of power lithium-ion batteries has increased dramatically. However, due to the short service life of power Li-ion batteries and their imminent mass retirement, it is necessary to effectively manage power Li-ion batteries in a resourceful manner. This paper first introduces the main components of power lithium-ion batteries and clarifies the stepwise utilization and pre-treatment process before their cathode materials are recycled. It focuses on an overview of the thermal, wet and biological recycling technologies for used power lithium-ion battery cathode materials, and presents the opportunities and challenges faced by biological recycling in the resourceful disposal of used power lithium-ion battery cathode materials. Our results can provide a certain reference for the green resource-based recycling of power lithium-ion batteries and promote the healthy development of the new energy vehicle industry.