CMC (Sodium Carboxymethyl Cellulose) Powder as Battery Electrode Binder, 100-500 g/bottle, CBEBCMC
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CMC (Sodium carboxymethyl cellulose) is a bio-based, water-soluble polymer derived from natural cellulose. Its use enables an aqueous (water-based) slurry process, which is a major advantage over the PVDF process that requires the use of the toxic and expensive organic solvent NMP. It plays multiple critical roles in the anode slurry and the final electrode structure: (1) Rheology Modifier/Thickener; (2) Dispersant; (3) Cohesive Binder. In almost all commercial LIB anodes, CMC is used in combination with another binder, Styrene-Butadiene Rubber (SBR), to form the dominant aqueous binder system.
| Part Number |
CBEBCMC (C-BEB-CMC) |
| CAS |
9004-32-4 |
| Chemical Formula |
(C8H16NaO)n  |
| Appearance |
White Powder |
| Purity |
>99.5% |
| Density |
0.35-0.60 g/cm3 |
| Melting Point |
~270 °C |
| 1% Solution Viscosity |
3500-5500 cP |
| pH |
6.0-8.5 |
| Package Size | 100 g, 200 g, and 500 g/bottle |
Notes: Please try to store the CMC powders in a dry place (glovebox is the best option).
References:
- Z. Wang, et al. CMC as a binder in LiNi0.4Mn1.6O4 5 V cathodes and their electrochemical performance for Li-ion batteries, Electrochimica Acta, 2012, 62, 77-83.
- Z. Karkar, et al. A comparative study of polyacrylic acid (PAA) and carboxymethyl cellulose (CMC) binders for Si-based electrodes, Electrochimica Acta, 2017, 258, 453-466.