It is estimated that the total number of EVs worldwide is expected to reach about 200 million by 2030 and the new energy storage capacity will reach 120.5GWh by 2025 in China. With the rapid growth of EVs and energy storage, spent lithium-ion battery recycling has become an inevitable challenge that must be overcome. This presentation will give an overview of the lithium battery market and its recycling market especially in China, our research on battery recycling and regeneration technologies for both LFP and ternary lithium battery and introduce a self-developed ultra-short separation system via a hydro-metallurgical process for high nickel EV battery, a direct recycling method for various spent electrodes, carbon assessment system for battery whole life, etc.