Product Specification

Industrial Grade Sapphire Substrate Small Granularity Alumina Powder

  Sapphire is composed of aluminum oxide (Al2O3), which is formed by covalent bonding of three oxygen atoms and two aluminum atoms. Its crystal structure is a hexagonal lattice structure. It is commonly used in A-Plane, C-Plane, and R-Plane. Due to its wide optical transmission band, sapphire has good transparency from near-ultraviolet (190nm) to mid infrared light. Therefore, it is widely used in optical components, infrared devices, high-strength laser lens materials, and mask materials. It has the characteristics of high sound speed, high temperature resistance, corrosion resistance, high hardness, high transparency, and high melting point (2045 ℃). 

【Application】

Excellent light transmission, so it is widely used in optical elements, infrared devices, high-strength laser lens materials and light cover materials.

【Specification】

1. Chemical properties: Al₂O₃>99.9%

2. Color: white

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

【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.

  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.

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

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.

  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.