
Top Quality Aluminium Ingot 99.9%
Boehmite Diaphragm coating can significantly improve the thermal stability of the separator, enhance the safety of lithium-ion batteries, and improve the rate performance and cycle performance of the battery under the premise of a lower coating thickness.
Product Introduction
Our Alumina ceramic abnormity, High Purity Alumina For Polishing, HPA For Advanced Ceramics are of high quality up to industry standards, so that is trusted by many customers. Our products have been put into the domestic and foreign markets and are recognized by the majority of businesses and consumers. Our company has been continuously strengthened in the process of gaining new opportunities in the crisis and opening up new prospects in the changing environment. In the process of working hand in hand with customers, suppliers, employees and many other stakeholders to develop business, we have a greater influence on society and shoulder the responsibility of making contributions to society.
Product introduction:
Boehmite (Boehmite) , also known as boehmite, has a molecular formula of γ-AlOOH (hydrated alumina), and diaspore, whose main component is α-AlO(OH), is the main component of bauxite. 99.9% Boehmite powder usual use to diaphragm coating due to it has good insulation.
Boehmite is used in the production of lithium battery separators, which are the safety guards of lithium batteries and have a high-efficiency flame retardant effect. It is mainly used in the production of battery separators for lithium batteries, catalysts for petroleum refining, high temperature resistant halogen free flame retardants, electronic industrial products, white pigments and other products.

Product Parameter (Specification):
Item | AM-BL-001 | AM-BL-002 | AM-BL-003 |
Purity(%) | 99.90% | 99.90% | 99.90% |
D50(μm) | 0.5-0.8 | 0.8-1.1 | 1.2-1.6 |
Surface Area (㎡/g) | 6.60 | 6.60 | 6.60 |
Ca(ppm) | 38.00 | 38.00 | 38.00 |
Na(ppm) | 112.00 | 112.00 | 112.00 |
| <5 | <5 | <5 |
Fe(ppm) | 56.00 | 56.00 | 56.00 |
Si(ppm) | 51.00 | 51.00 | 51.00 |
K(ppm) | 7.90 | 7.90 | 7.90 |
Mg(ppm) | 1.50 | 1.50 | 1.50 |
Cr(ppm) | <5 | <5 | <5 |
Ti(ppm) | <5 | <5 | <5 |
Remarks: Can produce the specifications customers provide or give a customize a solution.
Advantage of application:
1. Under the premise of low coating thickness, boehmite powder used to Diaphragm coating, and it can significantly improve the thermal stability of the diaphragm, enhance the safety of lithium battery, improve the multiplier performance and cycling performance of the battery, and at the same time, the thinner coating thickness is helpful to improve the volume energy density and weight energy density of lithium ion battery.
2. Compared with alumina, AlOOH has the characteristics of high heat temperature, good compatibility with organic matter, low hardness can reduce mechanical wear, and has advantages in cost.
3. The appearance of ALOOH is white, with high purity and good dispersibility. It does not introduce impurities, and does not affect the internal environment of the battery. The function of breaking current conduction and reducing the closed-cell temperature of the diaphragm greatly improves the safety performance of lithium batteries; it has excellent thermal conductivity, which can effectively solve the problem of poor thermal conductivity of PP/PE materials; it has excellent flame retardant performance, effectively preventing a wide range of Burn or even explode.

Boehmite vs Alumina:
At present, alumina is more widely used in separators. However, it is worth noting that the hardness of alumina is relatively large, so during the cutting and coating process, the mechanical wear is large, and the cost is higher than that of boehmite. The boehmite has the characteristics of high heat resistance temperature, good compatibility with organic matter, low hardness, which can reduce the wear and tear of machinery, and has advantages in cost.
Why choose us?
1. Your order production will be strictly controlled to ensure product quality
2. Professional production process and strict quality control team
3. Reasonable price
4. Delivery on time
5. We have rich experience in exporting high purity alumina.
Our company relies on the brand as the goal, the quality assurance for the life and continuously improves Top Quality Aluminium Ingot 99.9% and the service quality. If you need more information, please feel free to contact us by E-mail or telephone. We are willing to cooperate sincerely with customers from all over the world and regions to create a better future with a complete quality assurance system and strict and orderly modern management.
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