Electrochemical Characterization of Si/Al Multilayer Thin Film Anode Materials for High Energy Lithium Secondary Batteries

Title
Electrochemical Characterization of Si/Al Multilayer Thin Film Anode Materials for High Energy Lithium Secondary Batteries
Authors
윤석진최지원Vaishali PatilArun Patil
Keywords
Thin Films; Multilayer Anode; X-ray Diffraction; Electrochemical Properties
Issue Date
2018-04
Publisher
Science of Advanced Materials
Citation
VOL 10, NO 4-512
Abstract
Nanostructured silicon is a promising material for high capacity anodes in lithium batteries, offering a specific capacity an order of magnitude beyond conventional graphite. But the large volume change of silicon during lithiation and delithiation and the resulting poor cyclability has prevented its commercial application. Herein, we report Si/Al multilayer thin film electrodes which are deposited on a Ni substrate by alternate sputtering of Si and Al at room temperature. Si/Al multilayer thin films are prepared using an RF magnetron sputtering method, and their potential use as anode materials for rechargeable lithium-ion batteries is investigated. The insertion of the Al layer into the Si layer improves the cycling performance. Si/Al multilayer thin films show an amorphous structure. The electrochemical characteristics of Si/Al multilayer film electrode can be controlled by the thickness, and number of stacked Si layers. Our prepared multilayer structures provided a promising research platform that may eventually lead to an optimized anode structure for advanced rechargeable lithium secondary batteries.
URI
http://pubs.kist.re.kr/handle/201004/68120
ISSN
1947-2935
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE