Li-Si thin films for battery applications produced by ion-beam co-sputtering

authored by
Florian Strauß, Erwin Hüger, Paul Heitjans, Vanessa Trouillet, Michael Bruns, Harald Schmidt
Abstract

Amorphous lithium-silicon compounds are promising materials in order to improve pure silicon as a high-capacity anode material in lithium-ion batteries. We demonstrated that it is possible to produce amorphous LixSi (x ≈ 0.4) thin films by reactive ion-beam co-sputtering of a segmented solid state target composed of metallic lithium and elemental silicon. At the surface a graded LixSiOy layer of some nanometer thickness is formed by contact with air which seems to prevent decomposition of the LixSi.

Organisation(s)
Institute of Physical Chemistry and Electrochemistry
Center for Solid State Chemistry and New Materials (ZFM)
External Organisation(s)
Clausthal University of Technology
Karlsruhe Institute of Technology (KIT)
Type
Article
Journal
RSC Advances
Volume
5
Pages
7192-7195
No. of pages
4
ISSN
2046-2069
Publication date
2015
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
General Chemistry, General Chemical Engineering
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1039/c4ra14458a (Access: Open)