A new benchmark for high-performance carbon cathodes in lithium-oxygen batteries

Lithium-air batteries, sometimes known as lithium-oxygen batteries (Li-O2), comprise a lithium metal anode, an organic electrolyte and a porous carbon cathode. During discharge, oxygen in the surrounding air reacts with lithium at the cathode, releasing energy in the process. Given their extremely high energy density (> 3500 Wh kg-1), Li-O2 batteries could potentially lead the way in generating greener sources for energy security.

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