Bye and Oxis Develop Lithium-Sulfur Battery for Aircraft Bye Aerospace is to work with the UK’s Oxis Energy on development of a high energy-density battery that could power the company’s planned four-seat eFlyer 4 electric aircraft and future larger regional air-taxi designs. The limited energy density of lithium-ion (Li-ion) batteries is the biggest constraint on the performance of electric aircraft. The companies plan to develop a proof-of-concept lithium-sulfur (Li-S) cell ...


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