@article{7acd065c34bd4b128a16d41cac1a57cf,
title = "Synthesis and electrochemical performance of silicon-nanowire alloy anodes",
abstract = "High-capacity materials are required in order to address the environmental concerns of our modern society, ultimately leading to safe and eco-friendly high-energy batteries. Silicon-nanowire anodes (SiNWs) have the potential to significantly increase the energy density of lithium-ion batteries (LIBs). In order to improve the mechanical durability and the electrochemical performance of SiNW-anodes, we fabricated a silicon-nickel (SiNi) composite anode by electroless deposition of nickel, followed by annealing at high temperature to obtain nickel silicides of different content and composition. The morphology of SiNi-alloy anodes was examined by SEM,in situTEM and EDS methods in order to understand how different deposition protocols affect the coating of the silicon nanowires. The formation of Ni-silicides was found to occur during thermal treatment at 900 °C. Despite the incomplete shell coverage of SiNWs composed of multiple phases and grains, the electrochemical performance of binder-free and conducting-additive-free SiNi-alloy anodes showed stable electrochemical behavior and higher capacity retention compared to the pristine SiNW anode. Li/SiNW-SiNixcells ran at C/2 rate for 200 reversible cycles, exhibiting 0.1%/cycle capacity loss after completion of the SEI formation.",
author = "Edna Mados and Nimrod Harpak and George Levi and Fernando Patolsky and Emanuel Peled and Diana Golodnitsky",
note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",
year = "2021",
month = jul,
day = "26",
doi = "10.1039/d1ra04703e",
language = "אנגלית",
volume = "11",
pages = "26586--26593",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "43",
}