Battery grade lithium carbonate wet material is an important lithium compound, which is widely used in battery manufacturing, especially in the production of electric vehicle (EV) batteries, smart phone batteries and other high energy density batteries.
1. Ore extraction method: It is the earliest method to extract lithium carbonate from lithium-containing ores such as lithium pyroxene and lithium mica. After crushing, grinding and flotation, these ores are used to extract lithium ions by acid or alkaline leaching, and then precipitation, filtration, drying and other steps to get lithium carbonate products. The method has a long process, but the raw material is widely available and suitable for large-scale production.
2. Brine extraction method: brine extraction method is the use of lithium-containing brine (such as lithium lake water, salt lake brine, oil field brine, etc.) rich in lithium ions, lithium carbonate extraction through precipitation, adsorption, solvent extraction and other methods. The advantages of the brine extraction method are low cost and abundant resources, but subject to geographical constraints, usually only used in specific areas.
3. Recycling method: Recycling method is to extract lithium carbonate by recycling lithium-containing waste materials (such as waste lithium batteries, waste lithium-ion batteries, etc.). This method has the advantages of environmental protection and resource reuse, but the source of raw materials is limited, and the composition is complex, and it needs to be processed in multiple steps to obtain higher purity of lithium carbonate.
4. Bio-extraction method: Bio-extraction method is the use of biotechnology, such as microbial leaching, enzyme catalysis, etc., from the lithium-containing ores or brines to extract lithium carbonate. The method has the advantages of environmental protection and high efficiency, but the technical difficulty is high, and is still in the research stage. In actual production, according to different raw material sources and production conditions, suitable methods can be selected to prepare battery-grade lithium carbonate wet material. At the same time, in order to ensure the quality and purity of the product, a series of processing and treatment steps, such as decontamination, purification, drying, etc., are also required.
In addition, in order to improve the performance and added value of lithium carbonate products, some advanced preparation techniques such as air flow mills can be used to further process lithium carbonate. At the same time, for different applications and requirements, the quality and purity of the battery grade lithium carbonate wet material will be different, so it needs to be selected according to the specific requirements in the process of use.
In short, the preparation of battery-grade lithium carbonate wet material has a variety of methods, different methods have different advantages and disadvantages and scope of application. In actual production, it is necessary to choose the appropriate method according to the specific situation, and follow the relevant health and safety guidelines to ensure the safety and sustainability of the production process.