Ni-Sn-based hybrid composite anodes for high-performance lithium-ion batteries

Ni-Sn-based hybrid composite anodes for high-performance lithium-ion batteries

We have successfully synthesized NixSnyOz nanostructured composites consisting of Sn, SnO, Ni3Sn, and Ni3Sn2 phases via galvanic replacement reaction between Ni2+ and Sn at high temperature in triethylene glycol medium. The composites are used as novel anode materials for lithium-ion batteries. At d...

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Veröffentlicht in:Electrochimica acta 2018-07, Vol.278, p.25-32
Hauptverfasser: Nguyen, Tuan Loi, Kim, Doo Soo, Hur, Jaehyun, Park, Min Sang, Kim, Il Tae
Format: Artikel
Sprache:eng
Schlagworte:
Anodes
Batteries
Chemical synthesis
Composite anodes
Composite materials
Conductors
Current density
Electrochemical analysis
Electrode materials
Energy dispersive X ray spectroscopy
Energy transmission
Galvanic replacement
Hybrid composites
Lithium
Lithium oxides
Lithium-ion batteries
Ni-Sn alloys
Nickel alloys
Reaction kinetics
Rechargeable batteries
Tin
Tin oxide
Transmission electron microscopy
Triethylene glycol
X-ray diffraction
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Zusammenfassung:We have successfully synthesized NixSnyOz nanostructured composites consisting of Sn, SnO, Ni3Sn, and Ni3Sn2 phases via galvanic replacement reaction between Ni2+ and Sn at high temperature in triethylene glycol medium. The composites are used as novel anode materials for lithium-ion batteries. At different reaction times, the as-prepared composites show hollow structures with different compositions and particle sizes, as analyzed by X-ray diffraction, transmission electron microscopy, and energy dispersive X-ray spectroscopy. For example, the NixSnyOz-6h composite electrode with a small particle size (
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2018.05.022