Both lithium cobalt oxide batteries and ternary lithium batteries are types of lithium-ion batteries. So, what are the differences between lithium cobalt oxide batteries and ternary lithium batteries?
Lithium cobalt oxide batteries are lithium-ion batteries that use lithium cobalt oxide as the positive electrode material. They are mainly used to provide energy for electronic products and digital devices and were one of the earliest commercially available batteries. Ternary lithium batteries are lithium-ion batteries that use nickel-cobalt-manganese lithium or nickel-manganese-aluminum lithium materials as the positive electrode material. They are mainly used in new energy vehicles, power tools and other large electrical equipment and are currently a popular type of battery.
Besides the differences in definition and application mentioned above, lithium cobalt oxide batteries and ternary lithium batteries also differ in terms of range, safety, and economy.
In terms of battery life, since the performance of ternary lithium batteries is a combination of lithium cobalt oxide, lithium manganese oxide, and lithium nickel oxide, the energy density of the entire system is higher than that of lithium cobalt oxide.
In terms of safety, ternary lithium batteries are also superior to lithium cobalt oxide batteries.
Economically, cobalt is a precious metal element. Lithium cobalt oxide batteries contain more cobalt than ternary lithium batteries. In addition, in order to reduce the amount of cobalt used, ternary materials significantly increase the amount of nickel and manganese, which makes the production cost of ternary materials lower than that of lithium cobalt oxide.
Overall, ternary lithium batteries offer significantly better value for money than lithium cobalt oxide batteries. So why can't ternary lithium batteries completely replace lithium cobalt oxide batteries? This is mainly due to the relatively bumpy road from the laboratory to industrialization of ternary materials.
After a long period of development, lithium cobalt oxide batteries have formed four product lines: cylindrical batteries, polymer pouch batteries, aluminum-cased batteries, and steel-cased batteries. These products are used in the high-end, mid-range, and low-end markets, respectively.
Lithium cobalt oxide was the first to be commercialized due to its advantages such as simple production process and stable electrochemical performance. It has advantages such as high discharge voltage, stable charge and discharge voltage, and high specific energy, and has important applications in the field of small consumer battery. Due to the rapid development of the consumer electronics market, lithium cobalt oxide is the material with the largest sales volume among lithium battery cathode materials. However, it has high cost, is not environmentally friendly, has low specific capacity utilization, short lithium battery pack life, and poor safety.
Ternary materials combine the advantages of lithium cobalt oxide, lithium nickel oxide, and lithium manganese oxide, offering a price advantage. However, their application is affected by cobalt prices. When cobalt prices are high, ternary materials are cheaper than lithium cobalt oxide, giving them a strong market competitiveness. But when cobalt prices are low, the advantage of ternary materials over lithium cobalt oxide diminishes significantly. Currently, there is a strong trend towards ternary materials replacing lithium cobalt oxide.
