Sodium-sulfur battery electrolyte thin-wall ceramic tube sintering tool

Abstract

The invention discloses a sodium-sulfur battery electrolyte thin-wall ceramic tube sintering tool in the field of chemical energy storage. The sodium-sulfur battery electrolyte thin-wall ceramic tube sintering tool comprises a container. The bottom of the container is closed by a container base. A supporting ring is fixed on the top face of the container base. At least one air exchange passage is formed in the annular wall of the supporting ring. The container, the container base and the supporting ring are all made of fire resistant materials which can resist to alkaline atmosphere and high temperature of more than 1500 DEG C. A synchronous contraction ring is arranged on the top face of the supporting ring and is made of a green-ware of solid electrolyte Na-beta''-A12O3. A green-ware of an electrolyte thin-wall ceramic tube is inversely placed on the top face of the synchronous contraction ring. The sodium-sulfur battery electrolyte thin-wall ceramic tube sintering tool has the advantages of being capable of effectively reducing the production cost of the electrolyte thin-wall ceramic tube, realizing batch production, and being capable of effectively improving the sintering yield and performance uniformity of the electrolyte thin-wall ceramic tube and effectively preventing the of the green-ware of the electrolyte thin-wall ceramic tube from cracking and deforming and the like in the sintering process.

Description

technical field [0001] The invention relates to a sintering tool for a thin-walled ceramic tube of a sodium-sulfur battery electrolyte in the field of chemical energy storage. Background technique [0002] Solid Electrolyte Na-β″-Al 2 o 3 Ceramics have good Na + Ion conductivity, its ionic conductivity can reach 10 at room temperature -2 S / cm order of magnitude, solid electrolyte Na-β″-Al 2 o 3 Thin-walled ceramic tubes can be used as electrolytes for sodium-sulfur batteries. High-performance electrolyte thin-walled ceramic tubes are the core components in sodium-sulfur batteries. In the application process, solid electrolyte Na-β″-Al is required 2 o 3 The prepared electrolyte thin-walled ceramic electrolyte tube has high ion conductivity, high strength and uniform and dense microstructure. Solid Electrolyte Na-β″-Al 2 o 3 The process of sintering the green body at high temperature is a key step in the preparation of sodium-sulfur batteries, which has a decisive i...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome the deficiencies of the prior art, and provide a sintering tool for the electrolyte thin-walled ceramic tube of a sodium-sulfur battery, which can effectively reduce the production cost of the electrolyte thin-walled ceramic tube and realize batch production of the electrolyte thin-walled ceramic tube. It can effectively improve the sintering yield and performance consistency of the electrolyte thin-wall ceramic tube, and can effectively prevent the green body of the electrolyte thin-wall ceramic tube from cracking, deformation and other defects during the sintering process

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