Kim, Jung Sub Jung, Hun-Gi Choi, Wonchang Lee, Haw Young Byun, Dongjin Lee, Joong Kee 2024-01-20T08:03:53Z 2024-01-20T08:03:53Z 2021-09-05 2014-12-12 0360-3199 https://pubs.kist.re.kr/handle/201004/125994 This study investigates bundle-type silicon nanorods (BSNR) that are aimed at improving the discharge capacity and life cycle characteristics of secondary cells, by controlling the shape and etching depth of silicon thick-films produced by electroless etching. The prepared BSNR structure is composed of a columnar bundle, having a diameter of 100 nm and lengths of 1.5 and 3.5 mu m. The etching depths of the nanorods have a significant effect on the electrochemical performance characteristics, including the capacity fading and coulombic efficiency. Using a BSNR electrode therefore allows for an anode with a high capacity and efficiency in lithium ion cells, and can help overcome the issues associated with conventional silicon thick-films. Furthermore, as a result of its unique self-relaxant structure, electrode deterioration is improved through mitigation of the volume change. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD NEGATIVE ELECTRODE NANOWIRES MECHANISM ARRAYS Bundle-type silicon nanorod anodes produced by electroless etching using silver ions and their electrochemical characteristics in lithium ion cells Article 10.1016/j.ijhydene.2014.02.007 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.36, pp.21420 - 21428 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39 36 21420 21428 scie scopus 000347576200059 2-s2.0-84893932635 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article NEGATIVE ELECTRODE NANOWIRES MECHANISM ARRAYS Silicon Electroless etching Metal-assisted chemical etching Anode Surface modification