Hard Carbon
CAS Number 7440-44-0
Sodium-Ion Battery Materials, Anode Active Materials, Battery Materials, Materials
Irregular and Spherical Shape Hard Carbon Available
Ideal next-generation anode material for batteries
Overview | Product Information MSDS | Literature & Reviews | Related Products | Technical Support
Hard carbon (CAS number 7440-44-0) is a carbonaceous anode material for Li-ion and Na-ion batteries. The building units of hard carbons are random orientated hexagonal carbon layers. The stacking of such building units induces the formation of a large number of pores in the hard carbon, enabling enhanced ion storage capabilities. The mechanism of ion storage in hard carbon including intercalation, adsorption and pore filing through ion cluster formation, delivering superior electrochemical performance. Compared to conventional graphite anodes, hard carbon offers higher capacity, outstanding rate capability, excellent cycling stability, and reliable low-temperature performance, making it an ideal candidate for next-generation energy storage solutions.
A study of operando wide-angle neutron scatter (WANS) has revealed the expansion of graphene layers in hard carbon during the Na-ion insertion. The structural disorder in hard carbon predominantly occurred in the slope region and became saturated in the plateau region, providing valuable insights into the material's storage mechanism and long-term performance.
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Affordable and impactful
battery R&D
For Energy Storage Solutions
Improved alternative to
conventional graphite anode
High Performance
Excellent capacity, stability, and low-temperature performance
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General Information
| CAS Number | 7440-44-0 |
|---|---|
| Chemical Formula | C |
| Full Name | Carbon |
| Synonyms | Hard carbon anode |
| Classification or Family | Anode active materials, Lithium-ion batteries, Sodium ion batteries, Carbon materials |
Product Details
| Product Number | Particle Size | Appearance | Morphology | Density | Specific Surface Area |
|---|---|---|---|---|---|
| M2586A1 | 5.0 µm | Black powder | Irregular shape | 1.48 g/cm3 (true density) | 6.0 m2/g |
| M2586B1 | 9.6 µm | Black powder | Spherical shape | 0.65 g/cm3 (tap density) | 2.9 m2/g |
MSDS Documentation
Hard Carbon MSDS SheetLiterature and Reviews
- Unveiling dominant process of Na cluster formation and Na-ion diffusion in hard carbon nano-pore: a DFT-MD study, C. Lin et al., Adv. Energy Mater., 16, e05227 (2026); DOI: 10.1002/aenm.202505227.
- Hard carbon anodes for next-generation Li-ion batteries: review and perspective, L. Xie et al., Adv. Energy Mater., 2101650 (2021); DOI: 10.1002/aenm.202101650.
- An enhanced three-stage model for sodium storage in hard carbons, E. Eren et al., Energy Environ. Sci., 18, 7859 (2025); DOI: 10.1039/d4ee06029f.
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