TITLE:
Advancements in Synthesis Methods and Nanostructure Designing of SiOx-Based Anode for High-Capacity Li-Ion Batteries
AUTHORS:
Ila Prasad
KEYWORDS:
Li-Ion Batteries (LIBs), Solid Electrolyte Interface (SEI), Initial Coulomb Interface (ICE), Silicon Nanoparticles (SiNP)
JOURNAL NAME:
World Journal of Nano Science and Engineering,
Vol.16 No.3,
September
28,
2026
ABSTRACT: Lithium-ion batteries (LIBs) provide the highest energy and power densities. They have a longer cycle life compared to all other batteries in commercial use. They are, therefore, preferable ones in electronic products and electric vehicles (EVs). The graphite anodes used in LIBs have low specific capacity and therefore limited efficiency for high energy density applications. In the last decade, due to its ubiquitous nature, extremely high theoretical specific capacity and low cost, silicon-based anode materials have emerged as a potential candidate to replace the graphite anode of LIBs. However, the large volume expansion of silicon during cycling causes deformation of the electrode and loss of electrical contact resulting in significantly low performance. To alleviate this issue, SiOx (0 ≤ x ≤ 2) and its composites with structural modifications are under extensive investigation. This review evaluates the main synthetic methodologies of SiOx anodes with nanostructure designing and hybridizing. The paper includes the most recent developments in this direction and summarizes the main results. Limitations and challenges in improving the energy storage capabilities and commercialization of SiOx-based anode material for high energy density applications are discussed with future research trends.