Advanced Materials by Vivara Scientific

Mesocarbon microbeads (MCMB)

$208.32
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Mesocarbon microbeads (MCMB) anode material, grade A. Spherical graphitised carbon with an onion-like layered structure. The near-perfect sphericity gives excellent packing, isotropic lithium diffusion and very reproducible electrochemistry, which is why MCMB remains the reference anode for method development and inter-laboratory comparison.

Typical properties

Property Typical value
Material Mesocarbon microbeads, graphitised
Appearance Black spherical powder
Reversible capacity 300–330 mAh/g
First-cycle efficiency 90–94%
Morphology Spherical, onion-layer structure
Rate capability High — isotropic diffusion path

Figures are typical values from recent production, not guaranteed limits. A lot-specific Certificate of Analysis ships with every order.

Anode material comparison

Anode Capacity First-cycle eff. Rate capability Volume change Best for
Natural graphite 360–372 mAh/g 92–94% Moderate ~10% Cost-driven, high energy
Artificial graphite 340–360 mAh/g 93–95% Good ~10% Long cycle life
Fast-charge graphite 340–355 mAh/g 92–94% High ~10% Fast charge and high rate
MCMB 300–330 mAh/g 90–94% High ~10% Reference and benchmark work
Silicon–carbon (420) 400–450 mAh/g 85–90% Moderate 20–40% Higher energy blends
Lithium metal 3860 mAh/g — — — Half-cells and Li-metal research

Why MCMB is the reference anode

Flake graphite is anisotropic: lithium enters only at the edge planes, so electrode performance depends on how the flakes orient during coating and calendering. MCMB spheres present edge planes in every direction, so results are far less sensitive to coating technique. Its lower capacity is the price of that consistency — you trade energy density for reproducibility, which is exactly the right trade when the anode is your control rather than your variable.

Applications

  • Reference and control anode in comparative studies
  • Electrolyte and additive screening
  • SEI formation research
  • Rate capability and fast-charge benchmarking
  • Teaching laboratories and method validation

Handling

Store sealed and dry. Graphite is hygroscopic; dry before slurry preparation if the container has been open.

Ordering

Contact us for pricing, pack sizes and current lead time. Safety data sheet and lot-specific Certificate of Analysis available on request.

Mesocarbon microbeads (MCMB)

$208.32