Lithium-ion batteries have become a norm for energy storage these days. Many advances to increase their efficiency have been proposed. In the realm of material science, electrode, electrolyte, and separator are interesting design elements. Specifically focusing on anodes, several materials are being explored such as graphitic materials, metals, metal oxides, and metal phosphide. A key material explored is silicon. The obvious reason for silicon being a promising candidate is its high theoretical specific capacity (4200 mA-h/g for Li 22 Si 5