Lithium cobalt acid battery and ternary lithium battery are both belong to a kind of lithium-ion battery. So, what are the differences between lithium cobalt acid batteries and ternary lithium batteries?
Lithium cobalt acid battery is a lithium-ion battery with lithium cobaltate as the cathode material, mainly for electronic products and digital devices to provide energy, is an early commercialization of a battery; ternary lithium battery is a lithium-ion battery with lithium nickel cobalt manganese or lithium nickel manganese aluminum as the cathode material, mainly used in new energy vehicles, electric tools and other large electrical equipment, is currently a more popular battery.
In addition to the above definitions and uses, lithium cobalt acid batteries and lithium ternary batteries also have certain differences in terms of range, safety and economy.
In terms of range performance, the energy density of the whole system is higher than that of lithium cobaltate because the performance of ternary lithium battery is a combination of lithium cobaltate, lithium manganate and lithium nickelate.
In terms of safety, the safety performance of ternary lithium battery is also superior to that of lithium cobaltate.
In terms of economy, cobalt is a precious metal element, and the cobalt content of lithium cobaltate battery is more than that of lithium ternary battery, plus the amount of nickel and manganese used in ternary materials is obviously increased in order to reduce the amount of cobalt, which makes the production cost of ternary materials lower than that of lithium cobaltate.
Overall, the cost performance of ternary lithium batteries is much higher than that of lithium cobalt-acid batteries. Why can't ternary lithium batteries replace lithium cobalt-acid batteries completely? This is mainly because the ternary materials from the laboratory to the industrialization of the more bumpy.
After a long period of development, lithium cobalt-acid batteries have formed four product lines: cylindrical batteries, polymer soft pack batteries, aluminum-shell batteries and steel-shell batteries, which are used in high-end, mid-range and low-end markets.
Due to the advantages of simple production process and stable electrochemical performance, lithium cobaltate was the first to be commercialized and has the advantages of high discharge voltage, smooth charging and discharging voltage, high specific energy, etc. It has important applications in the field of small consumer batteries. Due to the rapid development of the consumer electronics market, lithium cobaltate is the material that accounts for the largest sales volume of lithium battery cathode materials, but its cost is high and not conducive to environmental protection, than However, its cost is high, and it is not conducive to environmental protection, low capacity utilization, short life span of lithium battery pack and poor safety.
Ternary materials combine the advantages of lithium cobaltate, lithium nickelate and lithium manganate and have price advantages, but their application is affected by the price of cobalt. When the price of cobalt is high, the price of ternary materials is lower than that of lithium cobaltate and has stronger market competitiveness; but when the price of cobalt is low, the advantage of ternary materials over lithium cobaltate is greatly reduced. At present, there is a general trend for lithium cobaltate materials to be replaced by ternary materials.
