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Aluminum Oxide Used for lithium battery Diaphragm

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What is ceramic diaphragm?

Ceramic finish special diaphragm: With PP, PE or multi-layer composite diaphragm as the matrix, the surface area is coated with a layer of nano-sized light weight aluminum oxide product, which is closely bound to the substratum after unique procedure treatment. It can considerably enhance the heat resistance and also safety of lithium-ion batteries. Ceramic coated special diaphragm is specifically suitable for power batteries.

Demands for diaphragms for lithium-ion batteries:

The performance of the diaphragm determines the interior resistance as well as interface structure of the battery, and afterwards establishes the battery capability, security efficiency, charge and discharge density and also cycle performance.

For that reason, the adhering to attributes require to be fulfilled:

Good chemical security: resistance to organic solvents.

Good mechanical homes: high tensile stamina and high leak strength.

Good thermal stability: low thermal shrinking and also high movie breaking temperature level.

Electrolyte wettability: excellent compatibility with electrolyte and high liquid absorption price.

As a kind of inorganic compound, aluminum oxide has high thermal stability and also chemical inertia, so it is an excellent choice for battery diaphragm ceramic coating.

Efficiency demands of ceramic diaphragm for alumina:

1. The bit dimension is uniform, which can be well glued to the diaphragm without blocking the diaphragm aperture.

2. Alumina has high pureness and also can not introduce impurities, which impacts the internal atmosphere of the battery.

3. The requirement of crystal structure of alumina makes sure the compatibility and wettability of alumina to electrolyte.

Advantages of finishing alumina diaphragm:

High temperature resistance:

Alumina finishing has excellent heat resistance and also can maintain the intact form of the diaphragm above 180 degrees Celsius.

High safety and security:

The alumina covering can reduce the effects of the free HF in the electrolyte as well as improve the acid resistance and also safety of the battery.

High magnification:

Nano-alumina can create solid service in lithium battery, which can improve the magnification and also cycle performance.

Good wettability:

Nanometer alumina powder has great fluid absorption and also fluid retention capability.

Special self-turn-off features:

The closed-cell quality of polyolefin diaphragm is maintained to stay clear of security dangers caused by thermal runaway.

Reduced self-discharge price:

The alumina layer raises the curvature of micropores and the self-discharge is less than that of the common diaphragm.

Long cycle life: minimize the mechanical micro-short circuit in the cycle procedure and also efficiently enhance the cycle life.

Light weight aluminum oxide Price

The price is affected by numerous aspects consisting of the supply and need in the market, sector patterns, economic activity, market sentiment, as well as unforeseen occasions.

If you are looking for the current al2o3 rate, you can send us your inquiry for a quote. (

Aluminum oxide Supplier

Innovation Co. Ltd. is a trusted al2o3 producer as well as al2o3 vendor with over 12-year-experience. We deliver our products all over the world.

If you are seeking premium al2o3 powder, please feel free to contact us as well as send a questions. (

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