TEXTURECEL™ 20000 P BA 07 is a naturally derived, high-purity, high molecular weight carboxymethyl cellulose (CMC) powder. It is used as a binder for graphite lithium-ion battery anodes.
TEXTURECEL™ 20000 P BA 07 is a high molecular weight sodium carboxymethyl cellulose (CMC) made to contain significantly fewer gel impurities than many other commercially available CMC materials. The overall energy density of the batteries increases when battery anode coatings use CMC with lower levels of gel impurities. Therefore, TEXTURECEL™ 20000 P BA 07 is an extremely effective CMC binder material to use in anode coating slurries for lithium-ion batteries.
When TEXTURECEL™ 20000 P BA 07 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, enhancing charging speed. Lithium-ion batteries made with TEXTURECEL™ 20000 P BA 07 also see increased specific discharge capacity over multiple aging cycles, indicating that lithium-ion batteries made with TEXTURECEL™ 20000 P BA 07 CMC binders have longer battery life. TEXTURECEL™ 20000 P BA 07 has a degree of substitution of 0.7 and forms solutions with a viscosity of 1,900–3,000 mPa·s at 1 wt% addition to water.
Degree of Substitution: 0.65–0.75
pH Value, 1% aqueous solution: 8.5 Max
Total Salt Content, dry basis: 0.50 Max
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
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
Lithium-ion battery anodes
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