Good stability cheap price sodium carboxymethyl cellulose cmc powder for lithium battery binder
Carboxymethylcellulose (CMC), an anionic, linear, water-soluble cellulose ether, is a derivative of natural cellulose and chloroacetic acid through chemical modification. Its aqueous solution has the functions of thickening, film formation, adhesion,water retention, colloid protection, emulsification and suspension.
Application:
As an anti-precipitation agent, it has a certain degree of cohesiveness. It is used in combination with SBR in lithium battery negative electrode slurry to moisturize and stabilize negative electrode slurry.
Use Tips:
1. The advised added quantity of CMC should be 1.2-1.5% of total powder.
2.The recommended concentration of CMC glue is 1.5-1.8%.
3.The stirring speed is 6-10m/S speed, and the stirring time is 90-150min. Long-term ultra-high-speed shear stirring is strictly prohibited.
ITEM |
UNIT |
MIN,VALUE |
MAX VALUE |
TEST METHOD |
Purity(in dry condition) |
% |
99.5 |
|
CE-55.4 |
arsenic |
ppm |
|
0.2 |
CE-93.1 |
Heavy metal content |
ppm |
|
10.0 |
CE-93.1 |
Lead content |
ppm |
|
2.0 |
CE-93.1 |
Mercury content |
ppm |
|
1.0 |
CE-93.1 |
Water content(in bag) |
% |
|
8.0 |
CE-7.1 |
Sodium carboxy acetic acid |
% |
|
0.40 |
CE-50.1 |
PH(1% water solution) |
% |
6.5 |
8.0 |
CE-8.1 |
Plate test |
CFU/g |
|
1000 |
CE-92.1 |
Sodium chloride content |
% |
|
0.40 |
CE-15.5 |
Na content |
% |
6.5 |
9.5 |
CE-59.5 |
replacement |
- |
0.65 |
0.85 |
CE-28.4 |
sulfate |
% |
20.0 |
33.3 |
CE-66.1 |
Total salt content(in dry condition) |
% |
|
0.50 |
CE-15.4 |
Viscosity(25ºC,in dry condition, 1% water solution) |
mPa.s |
3000 |
4000 |
CE-5.15 |
Viscosity(viscometer : LVT, #4rotor, speed 30rpm) |
mPa.s |
3000 |
4000 |
CE-5.15 |
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