Lithium cobalt oxide battery refers to the lithium-ion battery with lithium cobalt oxide as the cathode material, mainly for electronic products and digital equipment to provide energy, is one of the earliest commercial battery; Ternary lithium battery refers to the lithium-ion battery with nickel cobalt manganese lithium or nickel manganese aluminum-lithium material as the positive electrode. It is mainly used in new energy vehicles, power tools, and other large electrical equipment. It is a more popular battery at present.
In addition to the above definition and use of different lithium cobalt acid batteries and ternary lithium batteries in terms of endurance, safety, economy, and other aspects also have some differences.
In terms of endurance performance, the energy density of the whole system is higher than that of lithium cobalt because the performance of ternary lithium battery is a combination of lithium cobalt, lithium manganese oxide, and lithium nickel oxide.
In terms of safety, the safety performance of ternary lithium batteries will also be superior to that of lithium cobalt oxide.
Economically, cobalt is a precious metal element, and the amount of cobalt used in lithium cobalt acid batteries is more than that used in ternary lithium batteries. In addition, in order to reduce the amount of cobalt used in ternary materials, the amount of nickel and manganese is significantly increased, so that the production cost of ternary materials is lower than that of lithium cobalt oxide.
Overall, the cost performance of ternary lithium batteries is much higher than that of lithium cobalt acid batteries. So why can't ternary lithium batteries completely replace lithium cobalt acid battery? This is mainly ternary materials from the laboratory to the industrialization of the bumpier.
After a long period of development, lithium cobalt oxide batteries have been developed into four product lines: cylindrical batteries, polymer softshell batteries, aluminum shell batteries, and steel shell batteries, which are used in the high-end, mid-end, and low-end markets, respectively.
Cobalt acid lithium because of simple production technology and the advantages of the electrochemical performance is stable, the first commercially available, with high discharge voltage, stable charge and discharge voltage, high specific energy, has important application in the field of small consumer batteries, due to the rapid development of the consumer electronics market, cobalt acid lithium is lithium battery cathode material in the sales of the largest material, But its cost is high, and is not conducive to environmental protection, low specific capacity utilization, lithium battery pack life is short, poor safety.
Ternary materials have the advantages of lithium cobalt oxide, lithium nickel oxide, and lithium manganese oxide, and have the price advantage, but its application is affected by the cobalt price. When the cobalt price is high, the price of ternary materials is lower than lithium cobalt oxide, and it has strong market competitiveness. However, when the cobalt price is low, the advantage of ternary materials is greatly reduced compared with lithium cobalt oxide. At present, lithium cobalt oxide materials are being replaced by ternary materials.
