0.5 Micron Alumina Powder

0.5 micron alumina powder for Lithium ion battery separator

The coated α-Al₂O₃ separator has a much higher resistance to temperature effects than its polyolefin counterparts, retaining its dimensional integrity at temperatures as high as 200ºC. This eliminates the possibility of a short circuit during thermal runaway. Lithium ion batteries assembled as half-cells and full cells with coated α-Al₂O₃ separator exhibit electrochemical performance comparable with that of polyolefin separators at room temperature.

However, the cells with coated alumina separator shows better cycling performance under extreme temperatures in the temperature range of -30°C to 60°C. Therefore, the coated α-Al₂O₃ separator is very promising for application in safe lithium-ion batteries.


【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.
For the precision polishing of optical components, silicon wafers and large glass covers with high precision requirements.


【Specification】

1. chemical properties: Al₂O₃>99.9%
2. Color:white
3.PSD: D50=0.5-0.8um,D99<4um

【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

Lithium ion batteries with alumina separator is fabricated for safety improvement.Alumina separator is coated on electrode by a scalable and cost-effective method.Lithium ion batteries with alumina separator perform better than conventional cells.

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 can you get sample?
A: Free samples are available, but on the basis that you pay the courier charges.

3 Q: Why your price isn't the lowest price compared with others company or factories ?
A:We are a innovative enterprises, not only a produce factory. We have a a professional and experienced technical elite team.

4:Q:Do you provide equipment operation training?
Answer:Yes. We can will send one or two professional technicians (one is electrical engineer, one is mechanical engineer) to install and adjust the machines and help train the workers.

Shanghai Gona Industrial Co.Ltd is founded in 2006, and located in Songjiang Industrial District, Our company is a R&D company specialized in technology development of functional powder materials. Focused on the control technology of powder particulate, SHGRENM provide several series product such as rare earth oxide with special particulate properties, cerium oxide polishing powder, catalyst materials,Alumina for Li+ battery separator.

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.

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