Alumina Powder for Lithium Battery Separators
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Alumina Powder for Lithium Battery Separators

Alumina Powder for Lithium Battery Separators

Alumina for Lithium-Ion Battery Separators is a high-performance alumina powder produced through specialized processing techniques according to the performance requirements of batteries and battery materials. It features small and uniform particle size, high purity, and excellent surface properties. It is widely used in various lithium-ion batteries, alkaline batteries, solar cell materials, and other battery systems to improve energy storage performance and safety, while achieving energy conservation and environmental protection.
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Description

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.

product-800-800

 

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-800-800

 

Product Parameters

 

Grade

Chemical Composition (%)

Physical Properties

AlO

SiO

FeO

NaO

Average Particle Size (μm)

α-AlO (%)

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.

product-560-560

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.

1
Our white corundum features good particle shape, high bulk density and compact texture, making it an excellent raw material for high-grade refractories. Equipped with tunnel kilns and rotary kilns, we can produce various calcined alumina products as per customer requirements, widely used in refractories, alumina ceramics, precision grinding and polishing, semiconductor thermal conduction and packaging, and other industries.
product-800-800

 

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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