The book uniquely combines process engineering, battery systems, circular economy assessment, data analytics, and multi-objective optimization within a coherent supply chain perspective. Rather than addressing these dimensions in isolation, it demonstrates how technological choices, resource constraints, and sustainability metrics interact across the entire lithium value network. A defining feature of the volume is its clear pedagogical orientation for upper undergraduate engineering students. Core concepts are presented in a structured and accessible manner, enabling students to connect engineering fundamentals with system-level sustainability and supply chain decision-making, without assuming prior research experience. By serving as both a teaching resource and a reference, the book supports senior-level coursework, capstone projects, and introductory graduate study. Through its emphasis on integrated analysis, quantitative reasoning, and sustainability-oriented design, it provides students with a solid pathway toward advanced research and professional practice in energy and materials supply systems.