British battery specialist Oxis Energy is cooperating with US aircraft manufacturer Bye Aerospace to develop lightweight lithium-sulfur cells for battery packs in future Bye Aerospace electric aircraft.
The joint project starts in September and aims to achieve a battery cell energy density of 500 Wh/kg by early 2020. Initially, however, 400 Wh/kg cells will be installed, while Bye Aerospace is to receive the first 400 kWh of lithium-sulfur (Li-S) cells this year. The project is scheduled to run for a total of five years.
“Our Li-S cells and battery systems are ideally suited for aviation”, says Huw Hampson-Jones, CEO of Oxis Energy. “They are over 50% lighter than the current Li-ion cell and battery systems… The use of the same cell format across batteries will also help our customers to minimise cost and improve serviceability”.
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