What skills do you know about lithium-ion batteries?

There are two types of follow-up paths for lithium-ion batteries to adopt the model, and the cascade operation may be directly accepted. 1. Ladder operation and raw materials use retired power lithium-ion batteries. For those who take the ladder operation, the materials are accepted after the ladder operation; the direct materials are those with too small batches, no history to check, and security monitoring failures. Wait. The pursuit of economic benefits is the driving force of company and social behavior. According to the principle, cascade operation, until the operable cost of the lithium-ion battery is lowered to the maintenance cost, and then the raw material is adopted, the battery cost is maximized. However, the actual environment is that the traceability of early power lithium batteries was poor, and the quality and models were skewed. Early battery cascade operation risks are high, and the cost of eliminating risks is high. Therefore, it can be said that in the early stage of the acceptance of power lithium batteries, the rate of battery removal is mainly based on the acceptance of raw materials. 2. Essentials for extracting valuable metals from positive electrode materials The current use of power lithium-ion batteries has not achieved the full acceptance and operation of all kinds of materials in the entire battery. The types of positive electrode materials include: lithium cobalt oxide, lithium manganate, ternary lithium, lithium iron phosphate, etc. The material cost of the positive electrode material of the battery accounts for more than 1/3 of the cost of the single battery, and because the negative electrode currently recycles more carbon materials such as graphite, lithium titanate Li4Ti5O12 and silicon carbon negative electrode Si/C are less used, so the current battery acceptance technology is important for It is the material of the battery positive electrode. There are three important methods for the acceptance of used lithium-ion batteries: physical method, chemical method and biological method. Compared with other methods, hydrometallurgy is considered to be a more ambitious method of acceptance due to its low energy consumption, high acceptance efficiency and high-end product purity. 3. Hydrometallurgy Hydrometallurgy is a method of selectively dissolving the positive electrode material in waste lithium-ion batteries with compatible chemical reagents and evacuating the metal elements in the leachate. The hydrometallurgical process is more suitable for accepting waste lithium-ion batteries with a relatively single chemical composition. It can be used alone or in conjunction with high-temperature metallurgy. It does not require high equipment and has low processing costs. It is a very mature processing. Essentials, suitable for the acceptance of used lithium-ion batteries in small and medium-sized areas. 4. Pyrometallurgy Pyrometallurgy, also known as ignition method or dry metallurgy, is to remove the organic binder in the electrode material through high-temperature ignition, and at the same time cause the metal and its compounds to produce redox reactions in the form of condensation Accept low boiling point metals and their compounds, and accept metal recovery and screening, pyrolysis, magnetic separation or chemical methods in the slag. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What is the important difference between lithium ion batteries and lead-acid batteries