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

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

doi:10.1039/c4ra14458a

Abstract

Amorphous LixSi (x= 0.4) thin films were produced by reactive ion-beam co-sputtering for use as anode materials in Li-ion batteries.

Highlights

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 z 0.4) thin films by reactive ion-beam cosputtering of a segmented solid state target composed of metallic lithium and elemental silicon
In the present paper we describe the preparation of Li–Si thin lms, which were produced by reactive co-sputtering of segmented elemental lithium and silicon targets

Summary

Introduction

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 z 0.4) thin films by reactive ion-beam cosputtering of a segmented solid state target composed of metallic lithium and elemental silicon.

Results

Conclusion