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TEXTURECEL™ 20000 P BA

TEXTURECEL™ 20000 P BA is a powdered, high molecular weight, high-purity carboxymethyl cellulose (CMC) that is naturally derived and recommended as a binder for graphite lithium-ion battery anodes.

Product Overview

TEXTURECEL™ 20000 P BA is a high molecular weight sodium carboxymethyl cellulose (CMC) polymer that has significantly fewer gel impurities than many other commercially available CMC materials.  When lower gel particle CMC binders are used to make anode coating formulations for batteries, the overall energy density of these batteries is found to increase.  Thus, TEXTURECEL™ 20000 P BA is an extremely effective CMC binder material to use in anode coating slurries for lithium-ion batteries. 

When TEXTURECEL™ 20000 P BA is used as a binder for graphite lithium-ion battery anodes, it can improve the specific discharge capacity of the battery during very high C-Rates.  This in turn enhances charging speed.  Lithium-ion batteries made with TEXTURECEL™ 20000 P BA also see increased specific discharge capacity over multiple aging cycles, indicating that lithium-ion batteries made with TEXTURECEL™ 20000 P BA CMC binders have longer battery life.  TEXTURECEL™ 20000 P BA has a degree of substitution of 0.9 and forms solutions with a viscosity of 1,900–3,000 mPa·s at 1 wt% addition to water. 
 
 

Applications

TEXTURECEL™ 20000 P BA is a low gel particle content binder for graphite-based, lithium-ion battery anodes.  

Features & Benefits

Extremely low gel particle content
Naturally derived anionic polymer
Readily water-soluble
Improved thickening properties
Can be mixed with solids
Wide range of pH stability
 

Problems Solved

High gel impurities present in low-quality carboxymethyl cellulose binders
Fast decay of lithium-ion battery life over numerous battery charge cycles
Slow charging speed of lithium-ion batteries
Low energy density of batteries
 

Product Specifications

Degree of Substitution: 0.75–0.95
pH Value, 1% aqueous solution: 8.5 Max
Total Salt Content, dry basis: 0.50 Max

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