Lithium Battery Membrane Special Alumina Powder is a ceramic diaphragm special alumina with high mechanical strength and puncture strength, good high temperature resistance, and can still maintain the complete shape of the diaphragm at a high temperature of 180°C, which can significantly improve the safety of lithium-ion batteries and enhance the performance of the diaphragm.
characteristic
1. High temperature resistance
ALPW-LAP alumina has excellent thermal stability (melting point is about 2050°C). Coating it on the surface of the diaphragm can significantly improve heat resistance, reduce the risk of diaphragm shrinkage at high temperature, and prevent thermal runaway.
2. Electrolyte wettability
ALPW-LAP alumina has high surface affinity (especially nano-scale particles), which can enhance the adsorption of electrolyte by the diaphragm, improve ion transmission efficiency, and reduce battery internal resistance.
3. Mechanical strength
ALPW-LAP ceramic coating can improve the puncture strength and tensile resistance of the diaphragm, and reduce short circuits caused by dendrite penetration.
4. Chemical stability
Stable in electrolyte, ALPW-LAP alumina does not react with lithium salts (such as LiPF₆) or solvents, extending battery life.
Parameters
| Item | ALPW-LAP |
| SiO2(%) | 0.02 |
| Al2O3% | 99.99% |
| Fe2O3(%) | 0.01 |
| Na2O (%) | 0.02 |
| D50(μm) | 0.5-0.9 |
| SBET(m2/g) | 3-8 |
application
Improved thermal stability:
Alumina coating can significantly improve the high temperature resistance of the diaphragm. When the battery temperature rises abnormally, it can effectively prevent the diaphragm from shrinking and melting, greatly reducing the risk of thermal runaway.
Optimized electrolyte affinity:
The porous characteristics and surface chemical properties of alumina materials can enhance the wettability of the diaphragm to the electrolyte, improve the ion transmission efficiency, and thus improve the rate performance of the battery.
Enhanced mechanical strength:
The introduction of nano-alumina particles can enhance the mechanical properties of the diaphragm substrate, effectively inhibit dendrite penetration, and extend the battery cycle life.
Lithium Battery Membrane Special Alumina Powder
Why choose Zibo Xiangrun?
1. Ultra-high purity to ensure battery safety
2. Fine particle size and excellent dispersibility
3. High chemical stability, suitable for all types of electrolytes
4. Customized solutions to meet different needs
5. Strict quality control to ensure batch stability
Zibo Xiangrun's alumina powder for lithium battery separators has ultra-high purity, finely controlled particle size distribution and excellent dispersibility, which can significantly improve the thermal stability and electrolyte wettability of the separator; the product has strong chemical stability, can effectively inhibit dendrite growth and enhance battery safety performance; at the same time, it provides customized solutions to meet different process requirements, cooperates with a strict quality control system to ensure batch stability, and is an ideal functional material for improving the energy density and cycle life of lithium batteries.
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