What is the difference in materials between lithium ion batteries and lead-acid batteries

Lithium ion batteries include polymer lithium ion batteries, cobalt acid lithium ion batteries, ternary lithium ion batteries and iron phosphate lithium ion batteries. They are the important materials used in their manufacture: positive electrode material, negative electrode material, separator and electrolyte. Among the cathode materials, the most commonly used materials are lithium cobaltate, lithium manganate, lithium iron phosphate and ternary materials (a polymer of nickel cobalt manganese). Cathode materials occupies a large proportion (the mass ratio of positive and negative materials is 3:1~4:1), because the performance of cathode materials directly affects the performance of lithium-ion batteries, and its cost directly determines the cost of the battery. Among the anode materials, the current anode materials are mainly natural graphite and artificial graphite. The anode materials being explored include nitrides, PAS, tin-based oxides, tin alloys, nano-anode materials, and other intermetallic compounds. As one of the four major constituent materials of lithium-ion batteries, anode materials play an important role in improving battery capacity and cycle performance, and are at the core of the midstream of the lithium-ion battery industry. The market-oriented diaphragm material is mainly based on polyethylene (PE) and polypropylene (polypropylene, PP)-based polyolefin (Polyolefin) diaphragms. In the structure of lithium-ion batteries, the diaphragm is one of the key internal components. The performance of the diaphragm determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. A diaphragm with excellent performance has an important purpose for improving the overall performance of the battery. Electrolyte is generally prepared from raw materials such as high-purity organic solvents, electrolyte lithium salts, and necessary additives under certain conditions and in certain proportions. The electrolyte is used to conduct ions between the positive and negative electrodes of the lithium-ion battery, which guarantees that the lithium-ion battery can obtain the advantages of high voltage and high specific energy. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.