Dr. Ban Fei’s research focuses on advanced electrochemical energy storage systems and functional energy materials, with an emphasis on electrode design, structural regulation, and fundamental charge-storage mechanisms. His major research areas include: Alkali-metal-ion batteries, including lithium-, sodium-, and potassium-ion batteries, aiming to develop high-rate, long-life, and structurally robust electrode materials; Aqueous battery systems, such as aqueous zinc-ion and hybrid-ion batteries, with efforts devoted to improving reaction kinetics, safety, and cycling stability; Metal–sulfur batteries, including lithium–sulfur and magnesium–sulfur batteries, with a focus on sulfur cathode chemistry, polysulfide regulation, and electrode–electrolyte interfacial behavior; Advanced manufacturing and architected electrodes, particularly 3D-printed (additive-manufactured) porous electrodes, exploring the correlations between structural parameters, pore networks, and electrochemical performance. By integrating materials chemistry, defect and interface engineering with 3D printing–enabled structural design, Dr. Ban aims to achieve synergistic optimization across multiple length scales, providing scalable strategies for next-generation, high-performance energy storage technologies.