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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 aluminum oxide product, which is very closely bound to the substratum after special procedure treatment. It can dramatically boost the high temperature resistance and safety of lithium-ion batteries. Ceramic covered unique diaphragm is especially suitable for power batteries.

Requirements for diaphragms for lithium-ion batteries:

The performance of the diaphragm figures out the interior resistance and interface structure of the battery, and after that establishes the battery capacity, security performance, fee as well as discharge thickness and cycle efficiency.

Consequently, the adhering to features need to be fulfilled:

Good chemical stability: resistance to natural solvents.

Great mechanical residential properties: high tensile stamina as well as high slit stamina.

Great thermal stability: reduced thermal shrinkage and high film damaging temperature.

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

As a sort of inorganic material, light weight aluminum oxide has high thermal security as well as chemical inertia, so it is a good selection for battery diaphragm ceramic covering.

Efficiency requirements of ceramic diaphragm for alumina:

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

2. Alumina has high pureness and can not present contaminations, which impacts the internal atmosphere of the battery.

3. The need of crystal structure of alumina ensures the compatibility as well as wettability of alumina to electrolyte.

Benefits of covering alumina diaphragm:

High temperature resistance:

Alumina finish has superb high temperature resistance and also can preserve the intact form of the diaphragm over 180 degrees Celsius.

High protection:

The alumina finishing can neutralize the free HF in the electrolyte and boost the acid resistance and also safety and security of the battery.

High zoom:

Nano-alumina can form strong service in lithium battery, which can boost the zoom as well as cycle efficiency.

Excellent wettability:

Nanometer alumina powder has excellent liquid absorption and liquid retention ability.

Special self-turn-off qualities:

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

Low self-discharge rate:

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

Lengthy cycle life: reduce the mechanical micro-short circuit in the cycle procedure and also effectively enhance the cycle life.

Light weight aluminum oxide Price

The cost is affected by lots of elements consisting of the supply and demand on the market, market trends, financial task, market view, as well as unanticipated events.

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

Aluminum oxide Supplier

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

If you are trying to find high-quality al2o3 powder, please feel free to contact us and also send out a query. (

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