Lithium cobalt oxide batteries are a branch of lithium-ion batteries. Other types include lithium manganese oxide, ternary lithium, and lithium iron phosphate batteries. Compared to other types of lithium-ion batteries, lithium cobalt oxide batteries have the highest capacity. Lithium cobalt oxide batteries are structurally stable, have high specific capacity, and outstanding overall performance; however, they have poor safety and are very expensive. They are mainly used in small to medium-sized cells and are widely used in small electronic devices such as laptops, mobile phones, and MP3/4 players. Their nominal voltage is 3.7V.
Features of lithium cobalt oxide batteries
1. Excellent electrochemical performance
2. Excellent processing performance
3. High tap density helps improve the volumetric capacity of the battery.
4. The product has stable performance and good consistency.
Parameters of lithium cobalt oxide batteries
Standard discharge duration current: 0.2C
Maximum discharge duration current: 0.5C
Operating temperature: Charging: 0~45℃
Discharge: -20~60℃
Product dimensions: MAX 15*29*51mm
Finished product internal resistance: ≤180mΩ
Lead wire type: GB standard wire UL1571/26#, wire length 100mm
Protection parameters: Overcharge protection voltage/per string 4.28±0.025V
Over-discharge protection voltage: 2.4±0.1V; Overcurrent value: 3~7A
Advantages and disadvantages of lithium cobalt oxide batteries
I. Advantages of Lithium Cobalt Oxide Batteries
1. Stable structure
2. High capacity ratio
3. Excellent process performance
4. Volumetric energy density
II. Disadvantages of Lithium Cobalt Oxide Batteries
1. Poor security
2. The cost is very high.
3. The cycle life is average, and the material stability is not very good.
Applications of lithium cobalt oxide batteries
Lithium cobalt oxide batteries are primarily used as the positive electrode material in lithium-ion batteries for mobile phones, laptops, and other portable electronic devices. The application of lithium cobalt oxide batteries is still relatively limited. While the technology for using lithium cobalt in small batteries is mature, its high cost leads many companies to use lithium manganese as a substitute, and some even use entirely lithium manganese. Lithium cobalt oxide offers stable performance and its application in mobile phones is the most mature technology, but its biggest drawback is its high cost, as cobalt is a relatively scarce strategic metal. Furthermore, its application in power batteries presents certain challenges.
