Wet coating of lithium battery diaphragm alumina powder
α- Effect of alumina powder particle size on slurry processability,
coating formation and performance of lithium battery with alumina
powder electrode coating diaphragm. Small particles of alumina
powder form a slurry with the consistency required to manufacture
this electrode coated diaphragm. The alumina powder forming a
uniform slurry is directly coated on the lithium electrode to form
a high-quality and thin electrode support diaphragm.
【Application】
It is suitable for Lithium ion battery separator,and the battery
can be used for electronic car, electronic intelligent products and
energy storage products.
【Specification】
1. Chemical properties: Al2O3>99.9%
2. Color:white
3.PSD: D50=0.8-1.2um,D99<6um
| ITEM | INDEX | ITEM | INDEX |
| Al2O3% | 99.9 | D50 | 0.8-1.2um |
| Ca% | <0.05 | D90 | <3um |
| Fe% | <0.01 | D99 | <6um |
| Na% | <0.4 | BET | 5-8m2/g |
【Product features】
The presence of the alumina can significantly improve the physical
and chemical properties of battery separators. The alumina coating
layer may reduce or prevent dendrite puncture, lithium plating and
separator shrinkage during over-heating, hence significantly
increasing safety performance for a lithium ion battery.
The alumina ceramic coating provides a skeleton for the flexible
seperator, improves the wear resistance of the seperator, prevents
lithium dendrite from piercing, reduces heat shrinkage, improves
temperature resistance, and the pores are stable with temperature,
which can effectively improve the safety performance of the
battery.
1. Less magnetic foreign matters, stable electrical performance,
low content of harmful ions;
2. High heat resistance, stable at high temperature;
3. The particle size distribution is very narrow, which can be
coated with a very thin thermal insulation coating, with low
thermal resistance; no small particles blocking Li + ion channel,
no coarse particles scratching the film.
【Packing】 25kgs/poly-drum ,500kgs/pallet.
1 Q: How about the service ?
A: 24 hours for after-sale serive,more than 14 years experience in
this kind machine field
2 Q: How can you get sample?
A: Free samples are available, but on the basis that you pay the
courier charges.
3 Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is
15-20 days if the goods are not in stock, it is according to
quantity.
4 Q: What are your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance, balance before shipment.
If you have other questions, please feel free to contact us.
Shanghai Gona Industrial Co.Ltd is founded in 2006, and located in
Songjiang Industrial District, rounded by National Engineering
research Center of Ultrafine Powder(NERCUP).Our company is a
R&D company specialized in technology development of functional
powder materials.
Our company is always paying great attention to the intellectual
property and independent development, and pursuing innovation of
science and technology. Our company has been recognized as
“High-Tech Enterprise of Shanghai” since 2008. The project of the
high-precision rare earth polishing powder passed high-tech
achievements transformation, and its annual production reaches 2000
tons.
