Bamboo-Derived Hard Carbon Powder (~350 mAh/g) for Na-Ion Battery Anode, 10-20 g/bottle, CSIBABDHC
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Bamboo-derived hard carbon powder is a sustainable, high-performance non-graphitizable carbon anode material engineered for sodium-ion batteries (SIBs). Leveraging the natural hierarchical porous structure and high lignin/cellulose content of bamboo precursors, optimized pyrolysis yields a turbostratic carbon architecture that delivers a high reversible capacity of approximately 350 mAh/g with excellent cycling stability.
Its main features are: (1) Microstructure: Characterized by expanded interlayer spacing (d_{002} values ranging from 0.38 nm to 0.40 nm) and a high fraction of disordered graphene sheets combined with closed nanopores, facilitating both intercalation and pore-filling sodium storage mechanisms. (2) Voltage Profile: Exhibits a sloping voltage region above 0.1 V (associated with adsorption on defect sites and intercalation into graphene layers) followed by a long, low-potential plateau near 0.0 to 0.1 V vs. Na/Na+ (attributed to sodium cluster insertion into closed nanopores). (3) Initial Coulombic Efficiency (ICE): Typically ranges from 85% to 90%, optimized through pore-blocking mitigation and surface oxygen functional group reduction during high-temperature carbonization.
| Part Number |
CSIBABHCHC (C-SIB-A-BDHC) |
| Particle Size Distribution |
D50 = 5-8 um |
| Specific Area | ~4.0 m2/g |
| XRD |
 |
| First Discharging Capacity |
~350 mAh/g  |
| Columbic Efficiency | ~87% |
| Cycling Stability |
 |
| Package Grade |
10 g and 20 g/bottle
|
Notes: (1) Please store the hard carbon powder in a dry area (glovebox is preferred); (2) The battery powder is highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use.
References:
- Z. Sun, et al. Unveiling a two-stage closed-pore formation mechanism in bamboo-derived hard carbons for high-plateau-capacity sodium-ion battery anodes, Chemical Engineering Journal, 2025, 521, 167011
- X. X. He, et al. BSustainable Hard Carbon for Sodium-Ion Batteries: Precursor Design and Scalable Production Roadmaps, Adv. Mater., 2025, 11, 2506066