Silicon Monoxide (SiOx)

High Performance Anode Material For next-generation high-energy lithium-ion batteries Overview | Product Information | MSDS | Literature | Related Products | Technical Support Silicon monoxide (CAS 10097-28-6) is an inorganic material often referred to as SiOx reflecting its variable Si:O ratio. This material has been widely used as a next-generation anode material in lithium-ion batteries, owing to its high theoretical capacity (2615 mAh/g). When combined with carbon materials, silicon monoxide exhibits a sustained capacity of 577.7 mAh/g after 100 cycles at a current density of 1 A/g. The performance of silicon monoxide can be further improved by forming a composite with ZnS and nitrogen-doped carbon. The resulting ZnS/NC/SiO composite achieves reversible capacity of 748 mAh/g after 1000 cycles at 1.0 A/g. Prelithiation of silicon monoxide can drastically improve the initial Coulombic efficiency from 66.9% to 91.2% in an LFP//SiO cell configuration. Low Price Material For affordable battery R&D High Performance Anode Theoretical capacity of 2615 mAh/g Simple Worldwide Shipping Reliable delivery via tracked courier Reliable High Purity ≥ 99.99% for effective performance General Information CAS Number 10097-28-6 Chemical Formula SiOx Full Name Silicon monoxide Molecular Weight 44.08 g/mol Synonyms Silicon oxide, silicon (II) oxide, SiO, oxosilicon Classification or Family Battery materials, advanced ceramic materials, anode active materials Product Details Purity ≥ 99.99% Particle Size 1 – 4 µm Appearance Brown to black powder MSDS Documentation Silicon Monoxide MSDS Sheet Literature An ultrafast charge-driven topological intercalation prelithiation strategy for carbon-silicon composite anodes, Y. Zhao et al., Adv. Sci., 12, e06636 (2025); DOI: 10.1002/advs.202506636. Pre-constructed mechano-electrochemical adaptive solid electrolyte interphase to enhance Li+ diffusion kinetics and interface stability for chemically prelithiated SiO anodes, Z. Wang et al., Adv. Sci., 12, e15555 (2025); DOI: 10.1002/advs.202515555. Towards fundamental understanding of the heterogeneous multiphysics behaviors of silicon monoxide/graphite composite anodes, X. Gao et al., Carbon Energy., 6, e385 (2024); DOI: 10.1002/cey2.385. The optimal microstructure of silicon monoxide as the anode for lithium-ion batteries, L. Zhang et al., ACS Appl. Mater. Interfaces, 14 (46), 51965–51974 (2022); DOI: 10.1021/acsami.2c15455. Silicon monoxide anode co-modified with ZnS and nitrogen-doped carbon via facile synthesis: toward high-energy lithium-ion battery applications, Y. Liu et al., ACS Omega, 10, 17642–17650 (2025); DOI: 10.1021/acsomega.4c11551. Revitalizing micro-sized Si-based anodes through advanced structural design and interface stabilization: a review, L. Li et al., Small, 21, e06603 (2025); DOI: 10.1002/smll.202506603. View more references Related Products Battery Materials Battery Materials Battery Binders Battery Binders Popular Materials Popular and New Materials