940208

Mesocarbon microbeads

for lithium-ion battery anodes

• Synonym(s): Graphite, Synthetic graphite microbeads
• Empirical Formula (Hill Notation): C
• CAS Number: 7782-42-5
• Molecular Weight: 12.01
• MDL number: MFCD00144065
• UNSPSC Code: 12171603

Properties

• grade: battery grade
• Quality Level: 100
• form: powder
• mol wt: 12.01 g/mol
• composition: C
• particle size: ~11 μm (D50)
• mp: 3550 °C (lit.); 3652-3697 °C (lit.)
• density: ~1.2 g/cm³ (tap)
• application(s): battery manufacturing
• SMILES string: [C]
• InChI: 1S/C
• InChI key: OKTJSMMVPCPJKN-UHFFFAOYSA-N

Description

General description

Mesocarbon microbeads (MCMB) are a form of synthetic graphite, produced from petroleum pitch or coal tar. These materials are characterized by their distinct bead-like morphology and are categorized under "soft" carbons due to their graphitization onset at temperatures above 2000 °C. Our MCMB is synthesized to achieve a small average particle size of ~11 microns and low surface area (~1.5 m2/g).

Application

As a carbon anode material for lithium-ion batteries, MCMB exhibits several advantageous properties. It boasts a high specific capacity and its spherical morphology contributes to an increased packing density within the anode structure. The minimized surface area of MCMB plays a pivotal role in reducing detrimental side reactions throughout the charge-discharge cycles, curtailing irreversible capacity losses commonly attributed to solid-electrolyte interphase (SEI) layer formation. While MCMB has garnered recognition as an optimal anode constituent in various energy storage applications—including lithium-ion batteries, lithium-ion supercapacitors, Li-S batteries, and MCMB–Si composite batteries—it is generally deemed unsuitable for sodium-ion battery technology.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable