What are the classifications of lithium batteries?

What are the types of lithium batteries? Lithium batteries are generally divided into two categories: Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution. Lithium batteries: Lithium batteries generally use lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolyte. ① The high specific energy of lithium cobalt oxide battery makes lithium cobalt oxide battery a popular choice for mobile phones, notebook computers and digital cameras. The battery consists of a cobalt oxide cathode and a graphite carbon anode. The cathode has a layered structure. During discharge, lithium ions move from the anode to the cathode, while the direction of flow is opposite during the charging process. Lithium cobalt oxide batteries perform well in terms of high specific energy, but can only provide general performance in terms of power characteristics, safety and cycle life. ②Lithium manganese oxide battery Lithium manganese oxide is one of the more promising lithium ion cathode materials. Compared with traditional cathode materials such as lithium cobalt oxide, lithium manganese oxide has rich resources, low cost, no pollution, good safety, and good rate performance. It is an ideal cathode material for power lithium batteries, but its poor cycle performance and electrochemical stability greatly limit its industrialization. Lithium manganate mainly includes spinel type lithium manganate and layered structure lithium manganate. Among them, spinel type lithium manganate has a stable structure and is easy to realize industrialized processing. Nowadays, the products on the market are all of this structure. Advantages: cheap price; good low-temperature performance, with an efficiency of more than 90% when discharged at minus 20 degrees; good safety performance. Disadvantages: poor performance at high temperature; low cycle life; low gram-specific capacity; poor rate discharge ③Lithium iron phosphate battery Lithium iron phosphate battery has the advantages of non-toxic, non-polluting, good safety performance, wide source of raw materials, low price, and long life. , Is an ideal cathode material for a new generation of lithium batteries. Lithium iron phosphate batteries also have their disadvantages. For example, the tap density of lithium iron phosphate cathode materials is relatively small. The volume of lithium iron phosphate batteries of equal capacity is larger than that of lithium cobalt oxide and other lithium batteries, so they have no advantages in miniature batteries. The nominal voltage of the iron phosphate battery is 3.2V, the final charging voltage is 3.6V, and the final discharge voltage is 2.0V. Due to the different quality and technology of the positive and negative materials and electrolyte materials used by various manufacturers, there will be some differences in their performance. 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 article: What are the structural components of the UPS battery?