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Interphase Evolution of a Lithium-Ion/Oxygen Battery
被引:45
|作者:
Elia, Giuseppe Antonio
[1
]
Bresser, Dominic
[2
,3
,4
]
Reiter, Jakub
[5
]
Oberhumer, Philipp
[5
]
Sun, Yang-Kook
[6
]
Scrosati, Bruno
[7
]
Passerini, Stefano
[2
,3
]
Hassoun, Jusef
[1
,8
]
机构:
[1] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy
[2] Helmholtz Inst Ulm, Electrochem 1, D-89081 Ulm, Germany
[3] Karlsruhe Inst Technol, D-76021 Karlsruhe, Germany
[4] CEA CNRS UJF, CEA Grenoble, UMR 5819, INAC SPRAM PCI, F-38054 Grenoble 9, France
[5] BMW Grp, D-80788 Munich, Germany
[6] Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea
[7] Elettrochim & Energia, I-00199 Rome, Italy
[8] Univ Ferrara, Dipartimento Sci Chim & Farmaceut, I-44121 Ferrara, Italy
关键词:
Li/O-2;
lithium-ion battery;
ionic liquid electrolyte;
high efficiency;
safety;
LIQUID-BASED ELECTROLYTES;
ION OXYGEN BATTERY;
POLYMER ELECTROLYTE;
AIR BATTERIES;
LI-O-2;
STABILITY;
ANODE;
D O I:
10.1021/acsami.5b07414
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
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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页码:22638 / 22643
页数:6
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