Lithium cobalt oxide batteries are a type of lithium-ion battery.
Lithium cobalt oxide batteries have a stable structure, high specific capacity, and outstanding overall performance, but they have poor safety and very high cost. They are mainly used in small and medium-sized cells and are widely used in small electronic devices such as laptops, mobile phones, and MP3/4 players. The nominal voltage is 3.7V.
With the advancement of lithium battery technology, lithium cobalt oxide battery materials in commercially available lithium-ion batteries are basically produced using a liquid-phase synthesis process for lithium-ion secondary battery cathode materials with a layered structure. This process uses polyvinyl alcohol (PVA) or polyethylene glycol (PEG) aqueous solution as a solvent, with lithium salt and cobalt salt dissolved in PVA or PEG aqueous solution respectively. The mixed solution is heated and concentrated to form a gel. The resulting gel is then heated and decomposed, and then calcined at high temperature. The calcined powder is then ground and sieved to obtain lithium cobalt oxide powder.
Lithium cobalt oxide batteries have the following four characteristics:
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.
There are three drawbacks:
1. Poor security
2. High cost
3. The cycle life is average, and the material stability is not very good.
