What are the types and uses of lithium batteries?

1. Lithium batteries are classified according to their appearance: there are square lithium batteries (such as commonly used mobile phone battery cells) and cylindrical (such as 18650). 2. Lithium battery outsourcing materials are divided into aluminum shell lithium batteries, steel shell lithium batteries, and soft pack batteries 3. Lithium batteries are divided into positive and negative electrode materials (additives): Lithium acid (LiCoO2) batteries or lithium manganese oxide (LiMn2O4), lithium iron phosphate batteries, and disposable lithium manganese dioxide batteries; the other is divided into lithium ion LIB, Polymer PLB Lithium Manganese Oxide Battery Lithium manganese oxide battery refers to a battery that uses lithium manganese oxide as the positive electrode. Lithium manganate batteries have a nominal voltage of 2.5~4.2v. Lithium manganate batteries are widely used because of their low cost and good safety. Advantages: low cost, low price, good safety performance, good low temperature performance, more than 90% efficiency at minus 20 degrees. Disadvantages: poor high temperature performance, poor rate discharge, low cycle life, about 300 to 400 times , Easy to expand the scope of use: my country's lithium manganese battery is mainly used as a power lithium ion battery, which is used in the field of new energy vehicles. ■Ternary polymer lithium battery A ternary polymer lithium battery refers to a lithium battery that uses lithium nickel cobalt manganate or lithium nickel cobalt aluminate as the positive electrode material. It is more balanced in terms of capacity and safety. The ternary composite cathode material precursor product is made of nickel salt, cobalt salt, and manganese salt. The ratio of nickel, cobalt, and manganese can be adjusted according to actual conditions. Ternary lithium batteries have greater energy density, but their safety is often questioned. Advantages: high capacity, nominal capacity 1250mAh, good cycle life, generally 600 to 700 times, better than normal lithium cobalt oxide, good rate discharge Disadvantages: battery energy density is low, safety performance is the worst of the three batteries, under high temperature The cycle stability and storage performance are poor. Range of use: At present, ternary material polymer lithium batteries are widely used in the field of notebook batteries. The world’s five major battery cell brands SANYO, PANASONIC, SONY, LG, and SAMSUNG have all launched ternary material batteries. core. ■Lithium iron phosphate battery Lithium iron phosphate battery refers to a lithium battery that uses lithium iron phosphate as a positive electrode material. The peak value of lithium iron phosphate electric heating can reach 350℃-500℃, while lithium manganate and lithium cobaltate are only around 200℃. Wide operating temperature range (-20C--+75C), with high temperature resistance characteristics. Advantages: good rate discharge, no memory effect, can be charged and discharged, long cycle life, generally about 1500 times, good high temperature performance, it can still work normally at 45°C, it can be charged quickly in electric vehicles, and can be fully charged in 6 minutes , Can discharge 20 times. Disadvantages: poor low-temperature performance, which will greatly affect its performance at -10°C. Because lithium iron phosphate requires extremely high processing technology, low processing rate, and high cost, it is more expensive. Range of use of lithium iron phosphate battery: suitable for large electric vehicles: buses, electric vehicles, tourist attractions and hybrid vehicles, etc.; light electric vehicles: electric bicycles, golf carts, small flat battery carts, forklifts, cleaning vehicles, etc. Electric wheelchairs, etc.; power tools: electric drills, chainsaws, lawn mowers, etc.; remote control cars, boats, airplanes and other toys; solar energy and wind power storage equipment; UPS and emergency lights, warning lights and miner’s lamps; replace the 3V in the camera Disposable lithium batteries and 9V nickel-cadmium or nickel-metal hydride rechargeable batteries; small medical equipment and portable instruments, etc. However, it is currently widely used in the field of new energy vehicles, and it is a tripartite in the automotive field with ternary polymer lithium batteries and lithium manganate batteries. 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 general maintenance and maintenance skills of lithium battery packs?