Interphase Evolution of a Lithium-Ion/Oxygen Battery
- Authors
- Elia, Giuseppe Antonio; Bresser, Dominic; Reiter, Jakub; Oberhumer, Philipp; Sun, Yang Kook; Scrosati, Bruno; Passerini, Stefano; Hassoun, Jusef
- Issue Date
- Oct-2015
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Li/O-2; lithium-ion battery; ionic liquid electrolyte; high efficiency; safety
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.7, no.40, pp.22638 - 22643
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 7
- Number
- 40
- Start Page
- 22638
- End Page
- 22643
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24844
- DOI
- 10.1021/acsami.5b07414
- ISSN
- 1944-8244
- Abstract
- 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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