TY - JOUR
T1 - A Copper Silicide Nanofoam Current Collector for Directly Grown Si Nanowire Networks and their Application as Lithium-Ion Anodes
AU - Aminu, Ibrahim Saana
AU - Geaney, Hugh
AU - Imtiaz, Sumair
AU - Adegoke, Temilade E.
AU - Kapuria, Nilotpal
AU - Collins, Gearoid A.
AU - Ryan, Kevin M.
N1 - Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/9/1
Y1 - 2020/9/1
N2 - 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 CuxSiy NF) 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 ≈2.0 mAh cm−2 after 550 cycles. The use of the 3D CuxSiy NF 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.
AB - 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 CuxSiy NF) 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 ≈2.0 mAh cm−2 after 550 cycles. The use of the 3D CuxSiy NF 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.
KW - 3D CuSi nanofoam
KW - areal capacity
KW - high density
KW - lithium-ion battery
KW - silicon nanowires
UR - http://www.scopus.com/inward/record.url?scp=85088373709&partnerID=8YFLogxK
U2 - 10.1002/adfm.202003278
DO - 10.1002/adfm.202003278
M3 - Article
AN - SCOPUS:85088373709
SN - 1616-301X
VL - 30
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 38
M1 - 2003278
ER -