What are the advantages and disadvantages of lithium iron manganese phosphate batteries and lithium cobalt oxide batteries?
by:Vglory 2021-04-27
Advantages: low material cost, good safety, long cycle life, good high temperature stability. Disadvantages: poor process performance (makes the battery a little laborious), volume energy density is not ideal enough, mass energy density is not good enough, and low temperature performance is not good. In fact, these points are more troublesome in the industry and the use of power lithium-ion batteries. It is still the weak point of the two-year ternary lithium cobalt oxide (LCO): advantages: excellent process performance, high density and high volume energy density. Disadvantages: high cost (including cobalt), poor safety, average cycle life, and poor material stability. Lithium iron manganese phosphate (LMFP): Its advantages are similar to that of lithium iron phosphate, but the degree is lower. With a voltage platform of manganese, the energy density is increased. Disadvantages: Alkaline is similar to lithium iron phosphate, the process performance is not good, the energy density will increase but the quality is not good, no matter what the low temperature performance is, I tested the above: LFP meets the safety and life requirements It has advantages (represented by bus and energy storage). In the field of ordinary power lithium-ion batteries, it is restricted by functions such as energy density and low temperature, which have been more difficult in the past two years. Therefore, the correct power supply to the battery depends on the positioning of the product. LCO still dominates 3C consumer products due to its high energy density, and 3C is not very price sensitive. If you use LCO everywhere in the car, it is estimated that the cost of drinking a pot of LCO is enough. Personally, local tyrants please feel free. LMFP is a popularized product of LFP. Big companies such as BYD, Forstek, Dow are all engaged in it. No matter what, energy density can be improved to a certain extent. Domestic companies and ternary materials are mixed together, which has forward-looking safety. , Is also a concept. But in general, LMFP does not deal with the shortcomings of LFP well, so the vision of LMFP should be reviewed calmly. Positioning can be seen in LFP. PS: In my opinion, the research value of high-voltage, high-capacity polyanionic anode material systems is still very high. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Semi-solid electrolyte can improve the safety of lithium-sulfur batteries
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