eng Oriental Scientific Publishing Company Material Science Research India 0973-3469 2024-01-25 20 3 167 175 22195 article Dinesh Bejjanki 1 Vrushabh Dharmik 1 Uday Bhaskar Babu Gara 1 Sampath Kumar Puttapati 1 Department of Chemical Engineering, National Institute of Technology, Warangal, Telangana, India Currently, lithium-ion batteries have the highest energy density; hence naturally, this chemistry is the most promising solution for high-density energy storage. This means the commercially used anode material, that is, graphite with a theoretical capacity of 372 mAh/g, needs to be improved; hence the implementation of more capacity material is needed. In regard, silicon is the best alternative available for this with ~4200 mAh/g theoretical capacity. In this work an industrially scalable procedure using ultrasonication followed shear mixer to synthesize a composite of ball-milled silicon with exfoliated graphite for the anode material in lithium-ion batteries. The material is characterized using X-ray diffraction for crystallite information, and scanning electron microscopy shows the composite visuals with X-ray photoelectron spectroscopy to indicate bonding details in the composite, along with half coin-cell tested for18 cycles with a capacity of 222.48 mAh/g and columbic efficiency of 97.86%. Hence the silicon/exfoliated graphite composite using 2 step ultrasonic and shear process can be economical and scalable. https://www.materialsciencejournal.org/vol20no3/ultrasonic-assisted-synthesis-of-silicon-exfoliated-graphite-nanocomposite-as-anode-material-for-lithium-ion-batteries/ Anode Active material Capacity Li-ion battery Silicon