Analysis of Lithium Battery Structure and Composition

From the structure of lithium battery, it is mainly divided into the following five parts: 1. Cathode material: a layered or spinel structure transition metal oxide or polyanion type with high electrode potential and stable structure with lithium intercalation ability. Compounds, such as lithium cobaltate, lithium manganate, lithium iron phosphate, ternary materials, etc. 2. Anode material: the potential is close to the lithium potential, the structure is stable and can store many lithium layered graphite, metal element and metal oxides, such as graphite, central phase carbon microspheres, lithium titanate, etc. 3. Electrolyte: an organic solvent containing electrolyte lithium salt, which supplies lithium ions. The electrolyte lithium salt includes LiPF6, LiClO4, LiBF4, etc. The organic solvent is mainly diethyl carbonate (DEC), propylene carbonate (PC), and ethylene carbonate Ester (EC), dimethyl ester (DMC), etc. one or more of them are mixed. 4. Separator: Placed between the positive and negative electrodes, and be careful to touch the positive and negative electrodes straight, and allow Li+ ions to pass through the polyene microporous membrane, such as polyethylene (PE), polypropylene (PP), or their composite membrane, PP /PE/PP three-layer diaphragm. 5. Shell: battery encapsulation, mainly including aluminum shell, cover plate, tabs, insulating sheet, etc. 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: What are the basic requirements for lithium battery packs for electric vehicles