Controllable Synthesis of Hollow Si Anode for Long-Cycle-Life Lithium-Ion Batteries

Controllable Synthesis of Hollow Si Anode for Long-Cycle-Life Lithium-Ion Batteries

A versatile and surfactant‐free method is developed to synthesize hollow Si materials using carbonates as templates without the use of hazardous hydrofluoric acid. The morphology of Si is controllable from hollow cubes, spheres, and tubes, to flowers and other shapes. Such hollow Si materials as ano...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-07, Vol.26 (25), p.4326-4332
Hauptverfasser: Huang, Xingkang, Yang, Joseph, Mao, Shun, Chang, Jingbo, Hallac, Peter B., Fell, Christopher R., Metz, Bernhard, Jiang, Junwei, Hurley, Patrick T., Chen, Junhong
Format: Artikel
Sprache:eng
Schlagworte:
Anodes
Carbonates
hollow materials
Hydrofluoric acid
Lithium-ion batteries
Silicon
Stability
Synthesis
Tubes
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Beschreibung
Zusammenfassung:A versatile and surfactant‐free method is developed to synthesize hollow Si materials using carbonates as templates without the use of hazardous hydrofluoric acid. The morphology of Si is controllable from hollow cubes, spheres, and tubes, to flowers and other shapes. Such hollow Si materials as anodes of lithium‐ion batteries show excellent cyclic performance, which is promising for practical applications.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201400578