18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

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18650 lithium battery 2600mah

release time:2024-06-12 Hits:     Popular:AG11 battery

Advantages of high-purity alumina in the coating of 18650 lithium battery 2600mah separators

 

Advantage 1: When the current is too large, it can block the current. The lithium-ion battery separator of pp/pE material is a through hole. When the current is too large, it is easy to cause perforation, which in turn causes the lithium-ion battery to burn or explode. Using high-purity alumina (VK-L500G) as a coating material and an adhesive to coat it on the surface of pp/pE material can adjust the holes. This is because high-purity alumina has a plate-like crystal structure. When the current is too large, the material heats up, and then the high-purity nano-alumina coating material with a plate-like crystal structure will expand in volume, which will close the current conduction holes on the lithium-ion battery separator, thereby blocking the current. When the temperature drops, the material volume will shrink, and the current conduction holes on the separator will reopen. The special physical and chemical properties of this material can greatly improve the safety performance of lithium-ion batteries, thereby providing the possibility for high-power lithium-ion batteries to charge and discharge with high energy safety and safety.

 

Advantage 2: High-purity nano-alumina (VK-L500G) also has very good thermal conductivity. When the battery temperature is too high, this material can conduct heat well, thus solving the problem of poor thermal conductivity of pp/pE materials.

 

Advantage 3: High-purity nano-alumina (VK-L500G) material also has excellent flame retardancy. This is because high-purity alumina material itself is a very good flame retardant. Even if the temperature is too high and reaches the zero point of combustion, the good flame retardancy of the material will prevent large-scale combustion or even explosion.


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