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A copper silicide nanofoam current collector for directly grown Si nanowire network and their application as lithium-ion anodes
Date
2020
Abstract
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 lithiumâ ion batteries (LIBs). Herein, highâ density Si NWs are grown on a novel 3D interconnected network of binaryâ phase Cuâ silicide nanofoam (3D CuxSiy NF) substrate. The nanofoam facilitates the uniform distribution of wellâ segregated and smallâ sized catalyst seeds, leading to highâ density/singleâ phase Si NW growth with an arealâ loading in excess of 1.0 mg cmâ 2 and a stable areal capacity of â 2.0 mAh cmâ 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.
Supervisor
Description
peer-reviewed
The full text of this article will not be available in ULIR until the embargo expires on the 23/07/2021
Publisher
John Wiley & Sons, Inc.
Citation
Advanced Functional Materials;30 (38)
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Funding code
Funding Information
Science Foundation Ireland (SFI), European Research Council (ERC), Enterprise Ireland (EI), Horizon 2020, European Union (EU)
Sustainable Development Goals
External Link
Type
Article
Rights
https://creativecommons.org/licenses/by-nc-sa/1.0/