期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 38, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202003278
关键词
3D Cu(x)Si(y)nanofoam; areal capacity; high density; lithium-ion battery; silicon nanowires
类别
资金
- Science Foundation Ireland (SFI) [16/IA/4629, 11-PI-1148, SFI 16/M-ERA/3419]
- European Union's Horizon 2020 Research and Innovation Program [814464]
- SIRG [18/SIRG/5484]
- Enterprise Ireland [CF20144014]
- SFI Research Centre MaREI [12/RC/2278_P2, 12/RC/2302_P2, 16/RC/3918]
- SFI Research Centre AMBER [12/RC/2278_P2, 12/RC/2302_P2, 16/RC/3918]
- SFI Research Centre CONFIRM [12/RC/2278_P2, 12/RC/2302_P2, 16/RC/3918]
- [IRCLA/2017/285]
Silicon nanowires (Si NWs) have been identified as an excellent candidate material for the replacement of graphite in anodes, allowing for a significant boost in the capacity of lithium-ion batteries (LIBs). Herein, high-density Si NWs are grown on a novel 3D interconnected network of binary-phase Cu-silicide nanofoam (3D CuxSiyNF) substrate. The nanofoam facilitates the uniform distribution of well-segregated and small-sized catalyst seeds, leading to high-density/single-phase Si NW growth with an areal-loading in excess of 1.0 mg cm(-2)and a stable areal capacity of approximate to 2.0 mAh cm(-2)after 550 cycles. The use of the 3D CuxSiyNF as a substrate is further extended for Al, Bi, Cu, In, Mn, Ni, Sb, Sn, and Zn mediated Si NW growth, demonstrating the general applicability of the anode architecture.
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