GONA High precision Alumina
Lithium ion batteries with an inorganic separator offer improved
safety and enhanced reliability. an aluminium oxide Al2O3 or also called alumina layer in lithium ion-batteries is typically
deposited on top of the separator membrane to enhance its thermal
properties, enabling it to preserve its mechanical integrity at
temperatures up to 200 • C The performance of lithium-ion batteries
with coated alumina separator foils is the same at room temperature
as that of those with a polymer separator.
The coated α-Al2O3 separator does not react with LTO even after many charge/discharge
cycles. Fabrication of the electrode-supported α-Al2O3 separator is scalable and cost-effective, offering high potential
for practical application in industrial lithium ion battery
manufacturing.
【Application】
It is mainly used for the coating material of positive and negative
pole diaphragm of lithium battery, which is beneficial to the
stability of the battery.
It is suitable for Lithium ion battery separator,and the battery
can be used for electronic car, electronic intelligent products and
energy storage products.
【Specfication】
1. Chemical properties: Al2O3>99.9%
2. Color:white
3.PSD: D50=0.5-0.8um,D99<4um
| ITEM | INDEX | ITEM | INDEX |
| Al2O3% | 99.9 | D50 | 0.5-0.8um |
| Ca% | <0.05 | D90 | <2um |
| Fe% | <0.01 | D99 | <4um |
| 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 packing?
A:Usually we provide the packing as 50 kg Iron Drum or 25 plastic
Drum ,if you have special requirements on them, we will according
to you.
2. Q:How about the validity of the products?
A:According to the products you ordered.
3 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.
4.Q:What documents you provide?
A:Usually, we provide Commerical Invoice, Packing List, Bill of
loading, COA , and Origin certificate. If your markets have any
special requirements, let us know.
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.
Now we have three production bases and one R & D Center.One is
located in Baotou city inner Mongolia which produces cerium oxide
polishing powder;One is located in Zhejiang which produces alumina
for Li+ battery separator.Another one and the R&D center are
located in Shanghai.
