LFP is certainly not ‘better in every aspect’. There are a different set of compromises to each cell type.
LFP have a more equivalent full charge cycles
NMC have more capacity (volumetric and gravimetric) (This negates some of the charge cycle advantage as the same mass of NMC batteries will experience less charge cycles for the same distance driven)
NMC have higher cell voltage
LFP have a less calendar aging sensitivity to SOC
LFP have a flatter discharge curve (but see below)
NMC is easier to measure SOC off, which leads to that LFP must be charged fully more often to calibrate the BMS (This may negate the calendar aging advantage of LFP as they will sit fully charged more often)
LFP uses a less volatile cathode so it has more resistance against runaway events.
LFP uses less scarce materials (This is likely the most clear advantage)
LFP is certainly not ‘better in every aspect’. There are a different set of compromises to each cell type.
LFP have a more equivalent full charge cycles
NMC have more capacity (volumetric and gravimetric) (This negates some of the charge cycle advantage as the same mass of NMC batteries will experience less charge cycles for the same distance driven)
NMC have higher cell voltage
LFP have a less calendar aging sensitivity to SOC
LFP have a flatter discharge curve (but see below)
NMC is easier to measure SOC off, which leads to that LFP must be charged fully more often to calibrate the BMS (This may negate the calendar aging advantage of LFP as they will sit fully charged more often)
LFP uses a less volatile cathode so it has more resistance against runaway events.
LFP uses less scarce materials (This is likely the most clear advantage)