Lithium-ion battery

If you are familiar with mobile power supplies, you should know that the lithium-ion battery inside the mobile power supply can be divided into two categories, liquid lithium-ion battery (LIB) and polymer lithium-ion battery (LIP), according to the different electrolyte materials used. The positive and negative electrode materials used in the two are the same. The positive electrode materials include three types of materials: lithium cobalt oxide, nickel cobalt manganese and lithium iron phosphate. The negative electrode is graphite, and the working principle of the battery is basically the same. The main difference between them lies in the difference in electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while polymer lithium-ion batteries use solid polymer electrolytes instead. This polymer can be "dry" or "colloidal", and most of them use polymer colloidal electrolytes.