低能耗熔盐电解金属锂电解槽的开发及研究

Development and Research of Low Energy Consumption Molten Salt Electrolysis Lithium Metal Electrolyzer

近年来,金属锂在全固态锂电池、铝锂合金制备中发挥着不可替代的价值,但金属锂生产成本仍然是生产企业需要解决的问题。因此,从降低能耗角度优化生产工艺及设备角度利用Solid Works三维建模电解槽结构,以及ANSYS仿真模拟软件对电解槽进行热场模拟及计算,得出最优设计方案。生产电解效率可达到91%,能耗在35 kWh/kg以下,抽氯和集锂装置可以自动运行,抽出氯气浓度90%,集锂效率可达到80%以上,且出锂量较为稳定。该设备可以更好的投入产业化生产,满足企业降低生产成本的需要,促进熔盐电解金属锂行业的发展。

In recent years,lithium metal plays an irreplaceable role in the preparation of all-solid-state lithium batteries and aluminum-lithium alloys,but the cost of lithium metal production is still a problem that needs to be solved by production enterprises.Therefore,this paper optimizes the production process and equipment from the perspective of reducing energy consumption by using Solid Works three-dimensional modeling of the electrolyzer structure,as well as ANSYS simulation and simulation software to simulate the thermal field of the electrolyzer and calculations,resulting in the optimal design scheme.Its production electrolysis efficiency can reach 91%,energy consumption is below 35 kWh/kg,chlorine extraction and lithium collection device can run automatically,the concentration of extracted chlorine gas is 90%,the lithium collection efficiency can reach more than 80%,and the amount of lithium is more stable.The equipment can be better put into industrialized production,meet the needs of enterprises to reduce production costs,and promote the development of molten salt electrolysis of lithium metal industry.