FutureFlight
Bye Aerospace and Battery Developer Oxis Work to Boost Flight Times
Oxis says its lithium-sulfur batteries will support a 50 to 100 percent increase in how long electric aircraft can fly.
Bye Aerospace eFlyer
Oxis energy cells and modules will be evaluated against the projected performance of both Bye’s existing eFlyer 2 and 4 aircraft.

Bye Aerospace and Oxis Energy have begun a 12-month collaborative program to develop lithium-sulfur (Li-S) batteries they believe will allow electric aircraft to fly between 50 to 100 percent longer on a single charge. Development work will involve both ground and flight testing of Oxis’ Li-S batteries on Bye’s existing eFlyer prototype aircraft.

According to UK-based Oxis, its Li-S technology will deliver a two-fold decrease in the weight of batteries due to having a higher gravimetric energy density (in excess of 500 Wh/kg at 20Ah capacity) than lithium-ion batteries. This will result in the increased flight durations possible, it maintains.