This research focuses on the development and testing of a coupled pyro-hydro method for the extraction of valuable materials from Li-ion batteries. The primary objective of this study is to extract valuable Ni, Co and Lithium using the lean-hydromet process so that we could reduce the by-products and CO2 gas emissions in the process. The study shows the fundamental concept for the greenomic recycling process for the sustainable close-loop of the critical mineral ciuculation in EV market. The experiment results demonstrated a high level of efficacy, leading to a promising possibility of using the new method. The findings of this study have practical implications for the future extraction of valuable materials from Li-ion batteries, particularly with regard to reducing the environmental impact of the process. This study suggests with a discussion of possible future directions for research in this area.