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Old 13-11-2019, 06:33 PM
gary
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Lithium Sulphur battery hits the magic mark of 500 watt-hours/kilogram

Philip E. Ross reports today at the Institute of Electrical and Electronics
Engineers (IEEE) Spectrum magazine web site on a company called
Oxis Energy, of Abingdon, UK, who have developed a lithium sulphur
battery that would provide “in excess” of 500 Wh/kg.

They have joined up with a company in Colorado named Bye Aerospace
to have the new battery power an electric plane.


Quote:
Originally Posted by Phillip E. Ross, IEEE Spectrum
The two companies said in a statement that they were beginning a one-year joint project to demonstrate feasibility. They said the Oxis battery would provide “in excess” of 500 Wh/kg, a number which appears to apply to the individual cells, rather than the battery pack, with all its packaging, power electronics, and other paraphernalia. That per-cell figure may be compared directly to the “record-breaking energy density of 260 watt-hours per kilogram” that Bye cited for the batteries his planes were using in 2017.
This per-cell reduction will cut the total system weight in half, enough to extend flying range by 50 to 100 percent, at least in the small planes Bye Aerospace has specialized in so far. If lithium-sulfur wins the day, bigger planes may well follow.
Story here :-
https://spectrum.ieee.org/energywise...tric-airplanes
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