Advantages and disadvantages of ternary lithium battery

In a relatively balanced capacity and safety of materials, good cycle performance in normal cobalt acid lithium, early due to technical reasons the nominal voltage is only 3.5 3.6 V, limited in scope, but so far, as incremental improvements were made in the formulation and perfect structure, nominal voltage of battery is 3.7 V, on the capacity has been reached or exceed cobalt acid lithium battery level.

Advantages and disadvantages of ternary lithium battery

Ternary lithium battery parameters:

Nominal capacity: 1250mAh standard discharge current: 0.2c

Maximum continuous discharge current: 1C

Discharge: - 10 ~ 60 ℃

Product size: MAX9.5*35*52mm

Finished product resistance: 150 m or less Ω

Lead wire model: national standard ul1007/24 #, length of wire 55mm

Protection parameters: overcharge protection voltage / 4.325 0.025v per string

Over-discharge protection voltage is 2.5 0.05v

Overcurrent value: 2~6A or 3-8A

Advantages and disadvantages of ternary lithium battery

Advantages of ternary lithium battery:

Since the beginning of 2014, the ternary material lithium battery has been continuously modified in all aspects, and the cycle times have been increasing. At present, the cost has been appropriately increased, which can reach more than 1500 times. In addition, the safety performance of ternary material lithium battery is also improving, getting closer to lithium iron phosphate. In the past two years, the new nternary material of nickel-cobalt-aluminum has been recognized and trial-produced by many battery factories for its stability and safety, although it has higher requirements for the environment in the process of battery manufacturing.

1. High voltage platform. Voltage platform is an important index of battery energy density, which determines the basic efficiency and cost of battery. The higher the voltage platform is, the larger the specific capacity will be. It must be the same size, weight, or even the same ampere battery. The voltage platform of ternary material is obviously higher than that of lithium iron phosphate, the high line can reach 4.2 volts, and the discharge platform can reach 3.6 or 3.7 volts.

2. High energy density

3. High vibration density

Advantages and disadvantages of ternary lithium battery

Disadvantages of ternary lithium battery:

1. Poor security

2. Poor heat resistance

3. Poor service life

4. High power discharge difference

5. Toxic elements (the temperature of ternary lithium battery increases sharply after high-power charging and discharging, and the oxygen released after high temperature is very easy to burn)

The page contains the contents of the machine translation.