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Aluminum Oxide Used for lithium battery Diaphragm

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What is ceramic diaphragm?

Ceramic coating unique diaphragm: With PP, PE or multi-layer composite diaphragm as the matrix, the surface is covered with a layer of nano-sized aluminum oxide product, which is closely bound to the substrate after unique process therapy. It can considerably boost the heat resistance and also safety and security of lithium-ion batteries. Ceramic covered special diaphragm is specifically suitable for power batteries.

Demands for diaphragms for lithium-ion batteries:

The efficiency of the diaphragm determines the inner resistance and user interface structure of the battery, and then establishes the battery ability, safety and security performance, cost and also discharge thickness and cycle efficiency.

As a result, the following characteristics require to be fulfilled:

Good chemical stability: resistance to organic solvents.

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

Excellent thermal security: low thermal shrinking and also high movie damaging temperature level.

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

As a type of not natural compound, light weight aluminum oxide has high thermal stability and also chemical inertia, so it is a good option for battery diaphragm ceramic coating.

Performance needs of ceramic diaphragm for alumina:

1. The particle size is consistent, 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 affects the inner atmosphere of the battery.

3. The demand of crystal framework of alumina makes sure the compatibility and also wettability of alumina to electrolyte.

Advantages of layer alumina diaphragm:

High temperature level resistance:

Alumina finishing has excellent high temperature resistance as well as can maintain the undamaged form of the diaphragm over 180 degrees Celsius.

High safety and security:

The alumina layer can counteract the cost-free HF in the electrolyte as well as boost the acid resistance and safety and security of the battery.

High magnification:

Nano-alumina can develop strong remedy in lithium battery, which can enhance the magnifying as well as cycle efficiency.

Good wettability:

Nanometer alumina powder has great fluid absorption as well as fluid retention ability.

Special self-turn-off qualities:

The closed-cell attribute of polyolefin diaphragm is preserved to avoid safety risks caused by thermal runaway.

Low self-discharge price:

The alumina covering increases the curvature of micropores and the self-discharge is lower than that of the usual diaphragm.

Long cycle life: decrease the mechanical micro-short circuit in the cycle process and efficiently improve the cycle life.

Aluminum oxide Price

The rate is affected by lots of aspects consisting of the supply and demand on the market, sector fads, economic task, market sentiment, and also unforeseen occasions.

If you are searching for the most up to date al2o3 price, you can send us your questions for a quote. (

Aluminum oxide Supplier

Innovation Co. Ltd. is a trusted al2o3 supplier as well as al2o3 supplier with over 12-year-experience. We deliver our items throughout the globe.

If you are looking for high-grade al2o3 powder, please feel free to call us and send out a query. (

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