Silicon dioxide (SiO 2) has emerged as a highly promising anode candidate for next-generation electrochemical energy storage systems, owing to its facile synthesis and cost-effective production. Silicon dioxide (SiO 2) has emerged as a promising anode candidate for lithium-ion batteries, owing to its negligible volumetric expansion, superior cycling stability, and enhanced safety characteristics. Nevertheless, the practical implementation of SiO 2 as an anode material is constrained by critical limitations, including significant volumetric swelling during cycling and inherently low electrical conductivity. Through rational preparation and modification methods, these limitations can be effectively addressed, offering new opportunities for advancing lithium-ion battery technology. This review systematically overviews recent advancements in SiO 2-based anode research, critically examines persistent challenges, and outlines emerging opportunities for future development in the field.