Show simple item record

dc.contributor.authorUlvestad, Asbjørn
dc.contributor.authorAndersen, Hanne Flåten
dc.contributor.authorJensen, Ingvild Julie Thue
dc.contributor.authorMongstad, Trygve
dc.contributor.authorMæhlen, Jan Petter
dc.contributor.authorPrytz, Øystein
dc.contributor.authorKirkengen, Martin
dc.description.abstractSilicon is often regarded as a likely candidate to replace graphite as the main active anode material in next-generation lithium ion batteries; however, a number of problems impacting its cycle stability have limited its commercial relevance. One approach to solving these issues involves the use of convertible silicon sub-oxides. In this work we have investigated amorphous silicon sub-nitride as an alternative convertible silicon compound by comparing the electrochemical performance of a-SiNx thin films with compositions ranging from pure Si to SiN0.89. We have found that increasing the nitrogen content gradually reduces the reversible capacity of the material, but also drastically increases its cycling stability, e.g. 40 nm a-SiN0.79 thin films exhibited a stable capacity of more than 1,500 mAh/g for 2,000 cycles. Consequently, by controlling the nitrogen content, this material has the exceptional ability to be tuned to satisfy a large range of different requirements for capacity and stability.en_US
dc.publisherNature Publishing Groupen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleSubstoichiometric Silicon Nitride – An Anode Material for Li-ion Batteries Promising High Stability and High Capacityen_US
dc.title.alternativeSubstoichiometric Silicon Nitride – An Anode Material for Li-ion Batteries Promising High Stability and High Capacityen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
dc.source.journalScientific Reportsen_US
dc.relation.projectNorges forskningsråd: 257653en_US
dc.relation.projectNorges forskningsråd: 280885en_US
dc.relation.projectNorges forskningsråd: 197405en_US
cristin.unitnameSINTEF Materialer og kjemi

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal