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Internal High Purity Alumina For Battery Diaphragm

Internal High Purity Alumina For Battery Diaphragm

1344-28-1 Internal High Purity Alumina

Battery Diaphragm Alumina Powder

PP Diaphragm Alumina Powder

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Internal Alumina Materials That Battery Diaphragm
D50: 0.5-0.8;D99<4um
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Product Description

Internal Alumina materials that battery diaphragm



  Diaphragm is a monolayer polypropylene (PP) diaphragm. Single-layer PP diaphragm can provide greater rate performance and maintain stability in a wider temperature range, so it is also very suitable for the application of electric vehicles (HEV).

  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.




  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.

Internal High Purity Alumina For Battery Diaphragm 0



1. Chemical properties: Al2O3>99.9%

2. Color: white

3. PSD: D50=0.5-0.8um, D99<4um


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


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Product features


  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.


Factory supply 1 micron Lithium ion battery separator alumina powder 2



  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


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.


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【Packing】 25kgs/poly-drum ,500kgs/pallet.

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1 Q: Are you trading company or manufacturer?
A: We are a professional factory with more than 12 years of experience in this field. If you are convenience, we welcome you to visit our company.


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 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.


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  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. 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. The project of the high-precision rare earth polishing powder passed high-tech achievements transformation, and its annual production reaches 2000 tons.

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