Develop anode materials for Li/Na ion batteries 1. Synthesize anode materials for Li ion batteries by hydrothermal process. 2. Synthesize anode materials for Na ion batteries by hydrothermal process. 3. Characterizations of as-synthesized anode materials by XRD, SEM, EDX, XPS, BET. 4. Coin cell assembling. 5. Electrochemical measurements of as-synthesized anode materials by C/D tests, rate capability, cycle life, EIS, CV and so on. 6. Pouch cell assembling. 7. In-situ XRD measurements of as-synthesized anode materials for Li/Na ion batteries. We will support at least 12000 NTD/months for living expense. Visiting time: 6 months.