Preparation method of ceramic sheet and sealing assembly
A technology for sealing components and ceramic sheets, used in ceramic products, electrolytic components, applications, etc.
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[0025] The application discloses a preparation method of a ceramic sheet, which has the following steps:
[0026] Step 1: Obtain a slurry, the slurry is a mixture comprising solvent, powder, salt particles and additives, the powder is an inorganic powder, and the slurry is stirred to make it uniform;
[0027] Step 2: Pour the slurry into the mold, place it in an environment of 20°C-70°C and dry it for more than 20 hours to evaporate the solvent. After cooling to room temperature, the slurry is formed into a ceramic sheet, and the interior of the ceramic sheet There are pores, the porosity of the ceramic sheet is greater than or equal to 30%, the pore diameter of the pores is 0.1 micron-1 micron, and the salt particles are filled in at least part of the pores.
[0028] Optionally, the powder in step 1 includes one or more of lithium alumina powder, magnesium oxide powder, lithium cobaltate powder, lithium manganate powder, and alumina powder.
[0029] In some embodiments, the ...
Embodiment 1
[0037] Step 1: Ingredients, the powder is made of aluminum oxide lithium powder, wherein the powder with a particle size of more than 1 μm accounts for 70%-80% of the total weight of the powder, and the powder with a particle size of less than 1 μm accounts for 10% of the total weight of the powder -30%; the salt particles are lithium carbonate including 60% molar content and potassium carbonate 40% molar content; the binder is polyvinyl alcohol; the dispersant is lactic acid; the plasticizer is glycerin, triacetin and ethylene glycol A mixture of alcohols, where glycerol: triacetin: ethylene glycol is 1:1:1; the solvent is water;
[0038] The weight fraction of powder is 20.0 parts; The weight fraction of salt particle is 10.0 parts; The weight fraction of binding agent is 7.0 parts; The weight fraction of dispersant is 1.5 parts; The weight fraction of plasticizer is 4.0 parts; The weight fraction of solvent The fraction is 1.0 times of the powder;
[0039] Stir and mix the...
Embodiment 2
[0043] Step 1: Ingredients, the powder is made of aluminum oxide lithium powder, wherein the powder with a particle size of more than 1 μm accounts for 70%-80% of the total weight of the powder, and the powder with a particle size of less than 1 μm accounts for 10% of the total weight of the powder -30%; salt particles are lithium carbonate including 70% molar content and potassium carbonate 30% molar content; binder is polyvinyl alcohol; dispersant is lactic acid; plasticizer is glycerin, glycerol triacetate and ethylene glycol A mixture of alcohols, where glycerol: triacetin: ethylene glycol is 1:1:1; the solvent is n-butanol;
[0044] The weight fraction of powder is 40.0 parts; The weight fraction of salt particle is 15.0 parts; The weight fraction of binding agent is 12.0 parts; The weight fraction of dispersant is 3.0 parts; The weight fraction of plasticizer is 8.0 parts; The weight fraction of solvent The fraction is 5.0 times of the powder;
[0045] Stir and mix the ...
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Abstract
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