Silicon Monoxide (SiOx)
CAS Number 10097-28-6
Latest Products, Advanced Ceramic Materials, Anode Active Materials, Battery Materials,
Silicon monoxide anode material
for next-generation high-energy lithium-ion batteries
Overview | Product Information | Related Products
Silicon monoxide (CAS number 10097-28-6) is an inorganic material often referred to as SiOx reflecting its variable Si:O ratio. Silicon monoxide 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.
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High Purity
≥ 99%
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 SheetReferences
- 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.
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