What are the types of lithium batteries? What are the advantages and disadvantages of each

1. Lithium-ion 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-ion battery outsourcing materials: aluminum-shell lithium-ion batteries, steel-shell lithium-ion batteries , Soft pack battery Three. Lithium ion battery is divided into positive and negative electrode materials (additives): Lithium acid (LiCoO2) battery or lithium manganate (LiMn2O4), lithium iron phosphate battery, and one-time manganese dioxide lithium ion battery; One point: Lithium-ion LIB, polymer PLB ■ Lithium manganate battery Lithium manganate battery refers to a battery that uses lithium manganate as the positive electrode. Lithium manganate battery has a nominal voltage of 2.5~4.2v. Lithium manganate battery is widely used because of its low cost and good safety. Advantages: low cost, low price, good safety performance, good low temperature performance, more than 90% efficiency can be discharged at minus 20 degrees. Disadvantages: poor high temperature performance, poor rate discharge, low cycle life, about 300 to 400 times , Prone to swelling ■Ternary polymer lithium-ion battery Ternary polymer lithium-ion battery refers to a lithium-ion battery that uses lithium nickel cobalt manganate or lithium nickel cobalt aluminate as the positive electrode material. It is in terms of capacity and safety The aspect is relatively balanced. The precursor products of the ternary composite cathode material are made of nickel salt, cobalt salt, and manganese salt. The ratio of nickel, cobalt and manganese can be adjusted according to the actual situation. Ternary lithium-ion 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 Poor cycle stability and storage performance ■Lithium iron phosphate battery Lithium iron phosphate battery refers to a lithium ion battery using lithium iron phosphate as the 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, can still work normally at 45°C, can be charged quickly in electric vehicles, and can be fully charged in 6 minutes , Can discharge 20 times. Disadvantages: Poor low temperature, which will greatly affect its performance at -10°C. Because lithium iron phosphate has extremely high requirements for the production process, low productivity and high cost, it is more expensive. 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 ion batteries and lithium manganate batteries. ■Lithium cobalt oxide battery Lithium cobalt oxide battery can be regarded as the originator of the cathode material of lithium ion battery. It has superior electrochemical performance and high tap density. Lithium cobalt oxide battery has stable structure, high capacity ratio, outstanding comprehensive performance, but its safety is poor, and the cost is very high. It is mainly used in small and medium-sized batteries, and is widely used in notebook computers, mobile phones, MP3/4 and other small electronic devices. The nominal voltage is 3.7V. Advantages: stable structure, high capacity ratio, outstanding comprehensive performance Disadvantages: but its security is poor, and the cost is very high. Statement: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: Detailed analysis and aggregation Benefits and disadvantages of lithium batteries