I. Classification of Ternary Lithium Batteries
1. Ternary polymer lithium battery
Ternary polymer lithium batteries refer to lithium batteries that use lithium nickel cobalt manganese oxide (Li(NiCoMn)O2) ternary cathode material and gel polymer electrolytes. The electrolyte, as the transport medium for ion movement, is generally composed of a solvent and lithium salt. The electrolytes in lithium secondary batteries mainly include liquid electrolytes, ionic liquid electrolytes, solid polymer electrolytes, and gel polymer electrolytes.
2. Ternary lithium-ion batteries
Ternary lithium batteries refer to batteries that support high-rate, high-current discharge, have high power density, and release a lot of energy per unit time. Rate discharge capability refers to the battery's ability to maintain capacity as the charge/discharge rate increases. The charge/discharge rate is represented by xC; 1C means the battery's nominal capacity can be used up in 1 hour, while a 2C rate discharge allows it to be used for 30 minutes.
3. Ternary low-temperature lithium battery
The temperature characteristics of a battery are an indicator of its reliability, and battery performance can also be evaluated by changing the ambient temperature. The low-temperature characteristics of lithium batteries are mainly examined from the perspective of low-temperature discharge characteristics and cycle life. The most important aspect of low-temperature batteries is maintaining the fluidity of substances under low-temperature conditions, allowing lithium ions to freely move between the positive and negative electrodes to achieve battery charging and discharging.
II. Application Scope of Ternary Lithium Batteries
Ternary lithium batteries possess excellent electrochemical characteristics such as high energy density, good safety and stability, and support for high-rate discharge, as well as a cost advantage due to their moderate price. They have been widely used in small and medium-sized lithium battery fields such as consumer digital electronics, industrial equipment, and medical instruments, and have shown strong development potential in power lithium battery fields such as intelligent robots, AGV logistics vehicles, drones, and new energy vehicles.
Ternary lithium batteries have stable and high output voltage, stable performance, large capacity, long service life, wide operating temperature range, good safety, and are environmentally friendly and pollution-free. Therefore, they have great potential for future development in the lithium battery industry.
