Disassembly of the "Core" of Lithium Batteries: Cathode Material Determines Destiny

Typical Symptoms: A lithium iron phosphate battery retains 80% capacity after 2000 cycles, while a lithium cobalt oxide battery loses 50% capacity after only 1000 cycles.

Why are some batteries durable and others delicate?

The truth:

Lithium Iron Phosphate (LFP): The same model as the BYD Blade Battery, it has high safety, long cycle life (more than 3000 cycles), but low energy density (short range).

Lithium Cobalt Oxide (NCM/NCA): The same model as the Tesla Model 3, it has high energy density (long range), but is prone to decomposition at high temperatures and has a short cycle life (around 1500 cycles).

Lithium Manganese Oxide (LCO): The same model as the early iPhone battery, it has extremely high energy density, but is costly and has poor safety. It is now mostly used in small devices.

Test Cases: One user used a lithium iron phosphate battery pack to power a caravan and the capacity remained 75% after 5 years. Another user modified an electric vehicle with a lithium cobalt oxide battery, and the battery burst after being exposed to intense sunlight in summer. Solution:

Energy storage devices use lithium iron phosphate; electric vehicles use lithium ternary; and mobile phones use lithium cobalt oxide.

Avoid using lithium ternary batteries in environments above 40℃.