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Journal Articles ACS Applied Materials & Interfaces Year : 2015

Interphase Evolution of a Lithium-Ion/Oxygen Battery


A novel lithium-ion/oxygen battery employing Pyr(14)FSI-LiTESI as the electrolyte and nanostructured LixSn-C as the anode is reported. The remarkable energy content of the oxygen cathode, the replacement of the lithium metal anode by a nanostructured stable lithium-alloying composite, and the concomitant use of nonflammable ionic liquid-based electrolyte result in a new and intrinsically safer energy storage system. The lithium-ion/oxygen battery delivers a stable capacity of 500 mAh g(-1) at a working voltage of 2.4 V with a low charge-discharge polarization. However, further characterization of this new system by electrochemical impedance spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy reveals the progressive decrease of the battery working voltage, because of the crossover of oxygen through the electrolyte and its direct reaction with the LixSn-C anode.
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hal-01590245 , version 1 (19-09-2017)



Giuseppe Antonio Elia, Dominic Bresser, Jakub Reiter, Philipp Oberhumer, Yang-Kook Sun, et al.. Interphase Evolution of a Lithium-Ion/Oxygen Battery. ACS Applied Materials & Interfaces, 2015, 7 (40), pp.22638-22643. ⟨10.1021/acsami.5b07414⟩. ⟨hal-01590245⟩
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