Molecular Sieves For Dehydration Of Lithium-ion Battery Electrolyte Solvents
4A Molecular Sieve
PM-Chem Molecular sieve 4A adsorbent does not adsorb any molecular larger than 4 angstroms. The shape includes bead and pellet, and most common size is 1.6-2.5mm 3-5mm bead and 1.6mm, 3.2mm pellet. 4A zeolite desiccant has a uniform specific surface area and high adsorption capacity. Its static water adsorption value exceeds 22%. It can reduce the water content of solvents from 500 ppm to 20 ppm. At the same time, it does not crack when soaked in water (crush strength > 80 N), resists acid and alkali corrosion, and has a long service life. It also prevents caking in the lithium battery electrolyte solvent.
Technical Parameter
|
Model |
Zeolite 4A Molecular Sieve |
|||
|
Color |
Light yellow |
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|
Nominal pore diameter |
4 angstroms |
|||
|
Shape |
Sphere |
Pellet |
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|
Diameter (mm) |
1.6-2.5 (8*12 mesh) |
3.0-5.0 (4*8 mesh) |
1.6 (1/16 inch) |
3.2 (1/8 inch) |
|
Size ratio up to grade (%) |
≥98 |
≥98 |
≥98 |
≥98 |
|
Bulk density (g/ml) |
≥0.70 |
≥0.70 |
≥0.66 |
≥0.66 |
|
Wear ratio (%) |
≤0.20 |
≤0.20 |
≤0.20 |
≤0.20 |
|
Crushing strength (N/Piece) |
≥35 |
≥100 |
≥40 |
≥80 |
|
Static H2O adsorption (%) |
≥22 |
≥22 |
≥22 |
≥22 |
|
Stactic methanol adsorption (%) |
≥15 |
≥15 |
≥15 |
≥15 |
|
Water content (%) |
≤1.5 |
≤1.5 |
≤1.5 |
≤1.5 |
Our Advantages
20+ years molecular sieve manufacturer, the annual production capacity of 50,000 tons.
High Adsorption Capacity
The static water adsorption value of molecular sieve 4A for solvent dehydration exceeds 22%. It can reduce the water content of solvents from 500 ppm to 20 ppm.
High Strength
4A zeolite desiccant does not crack when soaked in water (crushing strength > 80 N), resists acid and alkali corrosion.
Long Service Life
Our molecular sieves have long service life, generally, the service life of them in industrial applications is usually 3-5 ye
As one of the four major raw materials of lithium-ion batteries, the electrolyte is formulated from high-purity organic solvents, lithium salt electrolyte, and necessary additives in a specific ratio. Commonly used solvents in lithium-ion battery electrolytes include ethylene carbonate (EC), diethyl carbonate (DEC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), propylene carbonate (PC), and dimethyl glycol ether (DME), which provide a stable chemical environment for lithium-ion migration. Typically, a moisture content of <20 ppm or even lower is required.
For dehydration of carbonate solvents, zeolite 4A molecular sieve is the first choice. Its pore size of 0.4 nm effectively allows water molecules to enter the pores while preventing DMC, EMC, EC, and other solvent molecules from being adsorbed, thus avoiding solvent loss.
Other Applications
- Natural gas drying
- Air drying
- Refrigerant drying
- Alkanes drying
- Electrolyte components drying
- Used in small desiccant package
- Used in air dryer and air compressor
Our Cases
Molecular sieve 4A desiccant for Solvent Dehydration
Our old customer who has cooperated with us for 8 years purchased 10lb/Pail molecular sieves they needed are used for organic solvent dehydration.
Molecular Sieve and activated alumina are used for Air dryer
Turkish customers purchased 6 tons of zeolite 4A molecular sieve and 2 tons of activated alumina balls for air dryers.
Our Factory
Mixing
Rolling
Sieving
Drying
Cooling
Testing
Packaging
Warehousing
Our Packages
Steel Drum
Paper Bag
Paper Drum
Super Sack
If you are interested in our product, please contact us, we can provide you free sample to test its quality and performance.
Our address
Shangxian West Road, Xinsanban Industrial Park, Pingxiang Economic and Technological Development Zone, Pingxiang City, Jiangxi Province
Phone Number
18007992872
info@cnpackingmall.com
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