Mesophase Carbon Microbeads

• Spherical morphology: Supports uniform powder handling and high packing density.

• High carbon content: High-purity grades may be available for demanding applications.

• Graphitic structure: Provides electrical conductivity and potential thermal transport benefits.

• Controlled particle size: Micron-scale particle distributions may be sourced.

• Low surface area options: Can help limit unwanted interfacial reactions in suitable battery formulations.

• Multiple processing grades: Carbonized and graphitized variants may be available.

Property	Typical Specification
Product Name	Mesophase Carbon Microbeads
Abbreviation	MCMB
Synonyms	Mesocarbon Microbeads, Mesophase Carbon Microspheres
Chemical Composition	Carbon (C), with grade-dependent residual impurities
CAS Number	7782-42-5, commonly listed for graphite/carbon materials
Molecular Weight	12.01 g/mol for carbon
Appearance	Black powder with spherical particles
Particle Morphology	Spherical or near-spherical
Particle Size	Typically micron-scale; D50 options around 10–20 µm may be available
Carbon Purity	Approximately 99%–99.9% or higher, depending on grade
Tap Density	Approximately 1.15–1.35 g/cm³, grade-dependent
Specific Surface Area	Approximately 1.0–2.0 m²/g for some battery grades
Moisture Content	Grade-dependent; some grades specify below 0.1%
Electrical Properties	Conductive; dependent on carbonization, graphitization, and processing
Applications	Lithium-ion battery anodes, advanced graphite materials, conductive composites, carbon materials research
Packaging	Sample quantities and bulk packaging, subject to availability

• Battery Grade MCMB: For lithium-ion battery anode development and electrochemical research.

• High-Purity MCMB: For applications requiring controlled carbon content and low impurity levels.

• Carbonized MCMB: For specialized carbon material processing and composite development.

• Graphitized MCMB: For applications requiring a more developed graphitic structure and electrical conductivity.

• Fine Particle MCMB: Controlled micron-scale particle sizes for electrode formulations and materials research.

• Custom-Specification MCMB: Sourcing based on particle size, carbon content, tap density, surface area, moisture, and impurity limits.

1. What are mesophase carbon microbeads?

Mesophase carbon microbeads are spherical carbon particles formed from pitch-based precursors and processed through controlled thermal treatments. They are valued for their particle morphology and graphitic structure.

2. What are MCMBs used for?

Their primary application is lithium-ion battery anode materials. Other uses include advanced graphite development, conductive composites, carbon-based components, and materials research.

3. What particle sizes are available?

Commercial MCMB grades commonly use micron-scale particles, with D50 values around 10–20 µm available for some specifications. Custom particle-size requirements should be confirmed with the supplier.

4. What purity levels are available?

Carbon content depends on the grade and processing method. Options around 99%, 99.9%, or higher may be available, subject to sourcing and impurity requirements.

5. What is the difference between carbonized and graphitized MCMB?

Carbonized MCMB has undergone thermal conversion into a carbon-rich material. Graphitized MCMB receives additional high-temperature treatment to develop greater graphitic ordering. Their electrochemical and electrical properties can differ significantly.

6. How should mesophase carbon microbeads be specified when requesting a quote?

Specify the intended application, carbon purity, D10/D50/D90 particle-size distribution, tap density, specific surface area, moisture content, impurity limits, quantity, and any required COA or technical data sheet.