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Aluminum Oxide Used for lithium battery Diaphragm

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What is ceramic diaphragm?

Ceramic finishing unique diaphragm: With PP, PE or multi-layer composite diaphragm as the matrix, the surface is coated with a layer of nano-sized aluminum oxide product, which is very closely adhered to the substrate after unique process treatment. It can significantly boost the heat resistance and also safety and security of lithium-ion batteries. Ceramic coated unique diaphragm is specifically appropriate for power batteries.

Demands for diaphragms for lithium-ion batteries:

The efficiency of the diaphragm establishes the interior resistance and also interface structure of the battery, and then identifies the battery capability, security efficiency, charge and also discharge density and also cycle performance.

As a result, the following attributes need to be fulfilled:

Good chemical stability: resistance to natural solvents.

Good mechanical properties: high tensile strength and also high puncture stamina.

Good thermal security: low thermal contraction and high movie damaging temperature.

Electrolyte wettability: good compatibility with electrolyte and also high liquid absorption rate.

As a sort of not natural material, light weight aluminum oxide has high thermal security as well as chemical inertia, so it is an excellent choice for battery diaphragm ceramic layer.

Efficiency demands of ceramic diaphragm for alumina:

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

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

3. The demand of crystal framework of alumina makes sure the compatibility as well as wettability of alumina to electrolyte.

Benefits of finish alumina diaphragm:

High temperature resistance:

Alumina layer has excellent heat resistance and also can keep the undamaged shape of the diaphragm over 180 levels Celsius.

High safety:

The alumina covering can counteract the complimentary HF in the electrolyte and enhance the acid resistance and safety of the battery.

High magnifying:

Nano-alumina can form strong option in lithium battery, which can boost the magnifying and also cycle performance.

Great wettability:

Nanometer alumina powder has excellent liquid absorption as well as fluid retention capacity.

Special self-turn-off characteristics:

The closed-cell feature of polyolefin diaphragm is preserved to stay clear of safety threats caused by thermal runaway.

Low self-discharge price:

The alumina finishing boosts the curvature of micropores and also the self-discharge is lower than that of the typical diaphragm.

Long cycle life: minimize the mechanical micro-short circuit in the cycle process as well as effectively enhance the cycle life.

Light weight aluminum oxide Price

The cost is affected by several elements including the supply and also need on the market, industry fads, financial activity, market view, and also unexpected events.

If you are seeking the most up to date al2o3 cost, you can send us your query for a quote. (

Aluminum oxide Supplier

Innovation Co. Ltd. is a relied on al2o3 producer as well as al2o3 vendor with over 12-year-experience. We ship our items throughout the globe.

If you are searching for top notch al2o3 powder, please do not hesitate to contact us and also send a query. (

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