Product Features
1.Extreme Thermal Stability
With a high melting point (approximately 2054℃) and excellent thermal stability, alumina maintains the structural integrity of separators at high temperatures, preventing short circuits caused by separator shrinkage or melting. It exhibits a thermal shutdown effect: micropores close upon thermal expansion and reopen when cooled, providing thermal runaway protection.
2.Excellent Mechanical Properties
Significantly improves the tensile strength and puncture resistance of separators, suppresses lithium dendrite penetration, and reduces the risk of micro-short circuits.
3.Outstanding Chemical Stability
High chemical inertness protects electrodes and separators. High purity minimizes side reactions, enhancing cycle stability and service life of batteries.
4.Superior Electrolyte Compatibility
Boosts liquid absorption and retention of separators, improving electrolyte wettability.
Increases tortuosity of micropores to reduce self-discharge rate.
Forms a solid solution structure, enhancing rate capability and cycle performance.

Application Fields
Power Batteries
● New energy vehicles: Compatible with NCM and LFP systems, improving safety and cycle life.
● Electric two/three-wheelers: Enhances puncture and thermal resistance for high-power applications.
Consumer Electronics Li-ion Batteries
● Smartphones, laptops, tablets: Improves safety and fast-charging performance of slim batteries.
● Drones, wearable devices: Meets high energy density and high-rate requirements.
Energy Storage Batteries
● Large-scale energy storage power stations and residential ESS: ● Enhances long-cycle performance, wide-temperature adaptability, and safety reliability.
Special-Purpose Batteries
● Aerospace, medical equipment, industrial energy storage: Satisfies high safety and long service life under extreme environments.

Product Parameters
|
Grade |
Chemical Composition (%) |
Physical Properties |
|||||
|
Al₂O₃ |
SiO₂ |
Fe₂O₃ |
Na₂O |
Average Particle Size (μm) |
α-Al₂O₃ (%) |
Specific Surface Area (m²/g) |
|
|
A-LP-100 |
≥99.5 |
≤0.04 |
≤0.01 |
≤0.08 |
0.7–1.0 |
≥93 |
6±1.5 |
|
A-LP-200 |
≥99.6 |
≤0.04 |
≤0.01 |
≤0.06 |
0.7–1.0 |
≥94 |
6±1.5 |
Packaging Specifications
| Small Pack | 1.25 kg per bag (PVC material) |
| Medium Consolidated Pack | 25 kg per bag (PVC material); 40 bags consolidated into 1 Jumbo Bag (Total |
| Bulk Loose Pack | 1 Metric Ton (MT) per Jumbo Bag (FIBC) |
| Palletized Unit | 1 MT Jumbo Bag mounted on a pallet |
| Custom Services | Tailored packaging solutions available upon request |
Company Advantages
Founded in 2004, Shandong Leipu New Material Technology Co., Ltd. has 22 years of experience in the production, development and sales of white corundum, low-sodium white corundum, calcined alumina and other series products. The company has obtained ISO 9001 Quality Management System certification, owns independent intellectual property rights and production processes with national invention patents.

We have a sound management system and advanced crushing and granulation equipment, forming an integrated industrial chain covering alumina raw material pretreatment, smelting, crushing, granulation and micropowder production.


FAQ
Q: Are you a factory?
A: Yes, we are a professional manufacturer with a 22-year history. We produce all products directly without intermediaries, ensuring the best prices and reliable lead times for you.
Q:What guarantees do you have for the product?
A:We strictly implement national and industrial standards, and can also follow internal control standards as required by customers, with full-process testing of key indicators.
Q: Will you bear the shipping cost for returns and exchanges?
A: In case of return or exchange of goods caused by objections to product quality, the customer shall submit the inspection certificate and application. After verification by our company, we can arrange for replacement or return, and the relevant expenses shall be borne by the responsible party.
Q: How to make payment and pick up the goods?
A: For orders with an amount ≤ 1,000 USD, 100% payment in advance is required. For orders with an amount ≥ 1,000 USD, a 30% advance payment via telegraphic transfer is required, and the balance shall be paid before shipment.
Q: How can I contact you?
A: Our contact information is available on the website, and you can reach us by phone or email.
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