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Carboxymethyl Cellulose Micro Powders and Their Usage in Li-Ion Battery

Carboxymethyl cellulose (CMC) is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone.
Carboxymethyl cellulose is used in many industrial applications. For example carboxymethyl cellulose is used in food as a viscosity modifier or thickener, and to stabilize emulsions in various products including ice cream. Carboxymethyl cellulose is also a constituent of many non-food products, such as toothpaste, laxatives, diet pills, water-based paints, detergents, textile sizing, reusable heat packs, and various paper products. Aqueous solutions of carboxymethyl cellulose have also been used to disperse carbon nanotubes.
Carboxymethyl cellulose is sometimes used as an electrode binder in advanced battery applications like lithium ion batteries, especially with graphite anodes. The water solubility of carboxymethyl cellulose allows for less toxic and costly processing than with non-water soluble binders, like the traditional polyvinylidene fluoride, which requires toxic n-methylpyrrolidone for processing. Carboxymethyl cellulose is often used in conjunction with styrene-butadiene rubber for electrodes requiring extra flexibility, e.g. for use with silicon-containing anodes.
Now let's see how carboxymethyl cellulose can be used in Li-Ion battery applications. In this application graphite is commonly used as anode material. Alternatively, it is useful to focus on environmentally friendly manufacturing. For this purpose, graphite suspension can be prepared in an aqueous system for the fabrication of graphite negative electrodes. This can be accomplished by preparing a stable slurry using organic additives like carboxymethyl cellulose. In this process carboxymethyl cellulose plays a key role as a thickening agent to prevent graphite particles from settling out during processing. Also carboxymethyl cellulose contributes to the development of surface charge on the graphite particle.
To reach out more detailed information about the usage of carboxymethyl cellulose micro powders in Li-Ion battery applications, you may check the paper given in the link below:
If you need carboxymethyl cellulose micro powders for your research needs, you may visit our website by clicking the link given below:
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