1. NCM Ternary Lithium Battery

The NCM ternary lithium battery refers to a lithium battery that uses nickel-cobalt-manganese (Li(NiCoMn)O2) or nickel-cobalt-aluminum (NCA) as the cathode material. The ternary composite cathode material is made from nickel salts, cobalt salts, and manganese salts, with the ratio of nickel, cobalt, and manganese adjustable based on actual needs. Early lithium batteries used lithium cobalt oxide (a single-material cathode), but later, in order to improve performance and reduce costs, nickel, manganese, or aluminum materials were added. These three materials are mixed in certain proportions, forming ternary materials. The main types are NCM and NCA, with Jackery primarily using NCM ternary materials.

Nickel (Ni) is represented by the symbol "Ni" and the first letter "N."

Cobalt (Co) is represented by the symbol "Co" and the first letter "C."

Manganese (Mn) is represented by the symbol "Mn" and the first letter "M."

Aluminum (Al) is represented by the symbol "Al" and the first letter "A."

The nominal voltage of a ternary lithium battery is generally 3.70V, with a charging limit voltage of 4.20V. (Some high-nickel, high-voltage ternary materials may have slightly higher nominal voltages and charging limit voltages.)

2. LiFePO4 Battery

The LiFePO4 (Lithium Iron Phosphate) battery is a lithium-ion battery that uses lithium iron phosphate (LiFePO4) as the cathode material and carbon as the anode material. The nominal voltage of a single cell is 3.2V, with a charging cutoff voltage ranging from 3.6V to 3.65V.

3. Comparison of Advantages and Disadvantages between LiFePO4 and NCM Ternary Lithium Batteries 

3.1 LiFePO4 Battery

Advantages:

• Long cycle life
• Good safety performance
• Excellent thermal stability and high-temperature performance
• Lower cost (compared to NCM ternary lithium batteries)
• Environmentally friendly

Disadvantages:

• Lower energy density and larger volume (compared to NCM ternary lithium batteries)
• Poor low-temperature performance (compared to NCM ternary lithium batteries)
• Slightly lower consistency

3.2 NCM Ternary Lithium Battery

Advantages:

• Small volume
• Higher single-cell voltage and energy density
• Good low-temperature performance
• Good cycle performance (slightly lower than LiFePO4)

Disadvantages:

• Poor thermal stability, requiring an excellent battery management system

4. Jackery Portable Power Stations currently on sale

Feature LiFePO 4 battery (LFP):

Explorer 5000Plus, HomePower 3000, 2000Plus, 2000 v2, 1000Plus, 1000v2, 600Plus, 300Plus, 240 v2, 100Plus

Feature NCM Ternary Lithium Battery：

Explorer 3000Pro, 500, 300, 240