Lifetime Batteries?

Dean Sigler Batteries, Electric Aircraft Materials, Electric Powerplants, Sustainable Aviation Leave a Comment

What if your new electric car came with a steel-clad warranty on its lifetime batteries?  Your editor’s father would have asked, “Whose lifetime?” but researchers at Dalhousie University suggest that might become a reality. lIn a paper in the Journal of The Electrochemical Society, “Li[Ni0.5Mn0.3Co0.2]O2 as a Superior Alternative to LiFePO4 for Long-Lived Low Voltage Li-Ion Cells,” Jeff Dahn’s research team explains a different approach to battery longevity.  The chemistry is similar to that used in millions of cells, but lowers the amount of carbon to operate at 3.8 Volts rather than 4.2 Volts.  These lower output cells, “Have an energy density that exceeds that of the LFP cells and a cycle-life that greatly exceeds that of the LFP cells …