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Aluminum Oxide Used for lithium battery Diaphragm

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What is ceramic diaphragm?

Ceramic covering special diaphragm: With PP, PE or multi-layer composite diaphragm as the matrix, the surface area is coated with a layer of nano-sized aluminum oxide product, which is closely bonded to the substratum after special process therapy. It can substantially enhance the heat resistance and also safety and security of lithium-ion batteries. Ceramic layered special diaphragm is particularly suitable for power batteries.

Requirements for diaphragms for lithium-ion batteries:

The efficiency of the diaphragm determines the inner resistance as well as user interface structure of the battery, and then figures out the battery capacity, security performance, charge and discharge thickness and cycle efficiency.

Therefore, the complying with qualities require to be satisfied:

Good chemical stability: resistance to natural solvents.

Good mechanical homes: high tensile stamina and also high slit stamina.

Excellent thermal stability: reduced thermal contraction and high film breaking temperature level.

Electrolyte wettability: excellent compatibility with electrolyte and also high fluid absorption rate.

As a sort of inorganic material, light weight aluminum oxide has high thermal security as well as chemical inertia, so it is an excellent option for battery diaphragm ceramic finishing.

Efficiency demands of ceramic diaphragm for alumina:

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

2. Alumina has high pureness and can not introduce pollutants, which impacts the interior environment of the battery.

3. The demand of crystal framework of alumina ensures the compatibility and wettability of alumina to electrolyte.

Advantages of finishing alumina diaphragm:

High temperature level resistance:

Alumina layer has exceptional heat resistance and also can keep the undamaged shape of the diaphragm above 180 degrees Celsius.

High protection:

The alumina finishing can counteract the totally free HF in the electrolyte as well as improve the acid resistance and also security of the battery.

High magnification:

Nano-alumina can create solid option in lithium battery, which can improve the zoom and cycle performance.

Excellent wettability:

Nanometer alumina powder has great liquid absorption as well as fluid retention capability.

Special self-turn-off qualities:

The closed-cell characteristic of polyolefin diaphragm is preserved to avoid safety dangers brought on by thermal runaway.

Low self-discharge price:

The alumina covering enhances the curvature of micropores as well as the self-discharge is lower than that of the common diaphragm.

Long cycle life: minimize the mechanical micro-short circuit in the cycle process and also successfully improve the cycle life.

Aluminum oxide Price

The rate is influenced by several variables including the supply and need on the market, market fads, financial activity, market sentiment, as well as unforeseen events.

If you are searching for the most recent al2o3 cost, you can send us your inquiry for a quote. (

Aluminum oxide Supplier

Technology Co. Ltd. is a trusted al2o3 producer and al2o3 provider with over 12-year-experience. We deliver our goods all over the world.

If you are looking for high-grade al2o3 powder, please do not hesitate to contact us as well as send a query. (

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