Lithium boron alloy production process, and device thereof

Abstract

Provided are a lithium boron alloy production process, and device thereof. The process includes mixing lithium and boron, heating to 400 DEG C. under high-purity argon gas atmosphere, stirring and reacting for 2h, heating to 450 DEG C. to form molten alloy, casting into a mold, continuously heating to 650 DEG C., and reacting for 1h till to hardening; and cooling to the alloy billet to room temperature, demolding, and packaging. The device includes a first transition bin, a synthesis box body, a cold well, a glove box and a second transition bin; two adjacent units are in sealed connection and spaced via a sealed bin gate, and each unit is connected with an argon gas purification device, respectively; the synthesis box body is provided with a first heating region and a second heating region, the first heating region is provided with a stirring device, and the heating body thereof can be turned over. By adopting innovative double-heating region staged reaction and synthesis, casting and transport under the protective atmosphere, the process prevents generation of various defects in the synthesis process of the lithium boron alloy, reduces the difficulty of the product subsequent processing and realizes energy saving and yield increase as well.

Description

technical field [0001] The invention relates to a lithium-boron alloy production process and equipment thereof. Background technique [0002] Lithium-boron alloy is an anode material for a new type of lithium-based thermal battery, which is smelted from lithium and boron at high temperature. Because the reaction process of lithium and boron is complicated, different phase structures will be formed according to the ratio of raw materials, thermal control and stirring conditions. During the synthesis process, complex physical and chemical state changes are required, and various defects such as inclusions, pores, and segregation are prone to occur. , product consistency is difficult to be guaranteed, so it is very difficult to accurately control and stably mass-produce lithium-boron alloys; in addition, lithium-boron alloys have a porous skeleton lithium-intercalation structure, with active chemical properties, and are easily oxidized, nitrided, and hygroscopic and hydrolyzed i...

AI Technical Summary

Problems solved by technology

Because the reaction process of lithium and boron is complicated, different phase structures will be formed according to the ratio of raw materials, thermal control and stirring conditions. During the synthesis process, complex physical and chemical state changes are required, and various defects such as inclusions, pores, and segregation are prone to occur. , product consistency is difficult to be guaranteed, so it is very difficult to accurately control and stably mass-produce lithium-boron alloys; in addition, lithium-boron alloys have a porous skeleton lithium-intercalation structure, with active chemical properties, and are easily oxidized, nitrided, and hygroscopic and hydrolyzed in the air. It needs to be synthesized and processed in a closed high-purity argon environment to ensure product quality and production safety

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