Preparation and Application of Ultra-low Water Content Ceramic Slurry for Lithium-ion Batteries
A lithium-ion battery, ceramic slurry technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of battery capacity decline, impact on battery performance, battery pressure increase, etc., to improve electrical performance and improve finished products. rate and electrical properties of the product, the effect of reducing water content
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Embodiment 1
[0030] A kind of ultra-low water content ceramic slurry for lithium ion battery, comprises the raw material of following weight percent:
[0031]
[0032]
[0033] The ceramic powder is composed of a specific surface area of 2m 2 / g of alumina, the specific surface area is 3m 2 / g of magnesium oxide and a specific surface area of 2.5m 2 / g of boehmite is a mixture composed of 0.8:1.0:0.8 by weight.
[0034] The specific surface area is 2m 2 / g of alumina is prepared by the following steps:
[0035] 1) Using a wet ball milling process to grind conventional α-crystal form calcined alumina into alumina powder with a particle size of less than 1 μm, and set aside;
[0036] 2) Using spray drying to dry the alumina powder obtained in step 1) under the condition of 170° C., remove moisture, and set aside;
[0037] 3) The alumina powder dried in step 2) is placed under the condition of 1200° C. for calcination for 60 minutes, and finally the calcined alumina powder is gro...
Embodiment 2
[0047] A kind of ultra-low water content ceramic slurry for lithium ion battery, comprises the raw material of following weight percent:
[0048]
[0049] The ceramic powder is composed of a specific surface area of 4m 2 / g of alumina, the specific surface area is 4m 2 / g of magnesium oxide and a specific surface area of 3m 2 / g of boehmite is a mixture composed of 0.9:1.0:0.9 by weight.
[0050] The specific surface area is 4m 2 / g of alumina is prepared by the following steps:
[0051] 1) Using a wet ball milling process to grind conventional α-crystal form calcined alumina into alumina powder with a particle size of less than 1 μm, and set aside;
[0052] 2) Use spray drying to dry the alumina powder obtained in step 1) under the condition of 175° C., remove moisture, and set aside;
[0053] 3) The alumina powder dried in step 2) is placed under the condition of 1250° C. for calcination for 75 minutes, and finally the calcined alumina powder is ground by a dry b...
Embodiment 3
[0063] A kind of ultra-low water content ceramic slurry for lithium ion battery, comprises the raw material of following weight percent:
[0064]
[0065] The ceramic powder is composed of a specific surface area of 6m 2 / g of alumina, the specific surface area is 5m 2 / g of magnesium oxide and a specific surface area of 3.5m 2 / g of boehmite is a mixture composed of a weight ratio of 1.0:1.0:1.0.
[0066] The specific surface area is 6m 2 / g of alumina is prepared by the following steps:
[0067] 1) Using a wet ball milling process to grind conventional α-crystal form calcined alumina into alumina powder with a particle size of less than 1 μm, and set aside;
[0068] 2) Using spray drying to dry the alumina powder obtained in step 1) under the condition of 180° C., remove moisture, and set aside;
[0069] 3) The alumina powder dried in step 2) is placed at 1300° C. for calcination for 90 minutes, and finally the calcined alumina powder is ground by a dry ball mill...
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