Show simple item record

dc.contributor.authorShi, Qitao
dc.contributor.authorYe, Weibin
dc.contributor.authorKurtyka, Klaudia
dc.contributor.authorWang, Haiming
dc.contributor.authorLian, Xueyu
dc.contributor.authorTa, Huy Quang
dc.contributor.authorZhou, Junhua
dc.contributor.authorYang, Xiaoqin
dc.contributor.authorGuo, Lingli
dc.contributor.authorTrzebicka, Barbara
dc.contributor.authorSun, Jingyu
dc.contributor.authorLiu, Lijun
dc.contributor.authorWang, Ming-Sheng
dc.contributor.authorRümmeli, Mark H.
dc.date.accessioned2022-08-30T07:48:56Z
dc.date.available2022-08-30T07:48:56Z
dc.date.issued2022
dc.identifier.citationScience China Materials. 2022, vol. 65, issue 9, p. 2343-2353.cs
dc.identifier.issn2095-8226
dc.identifier.issn2199-4501
dc.identifier.urihttp://hdl.handle.net/10084/146436
dc.description.abstractSilicon (Si) is a promising anode material for next-generation Li-ion batteries. The nanometer-sized Si could alleviate the pulverization caused by large volume changes during deep cycling. However, compression between agglomerated Si particles causes Si cracking and electrode failure. Considering this, we engineered a mechanical cushioning space between Si particles via elastic hollow graphene shells (GSs) to flexibly buffer volume changes and maintain the stability of the electrode structure. The stress generated from the Si volume expansion during lithiation was mechanically buffered and gently released by compression of the hollow space of the GS. In this Si/GS composite electrode, GS also reduced the local agglomeration of Si particles and effectively improved the overall conductivity. Considering these advantages, the designed Si/GS electrode showed an enhanced cycling performance with more than 1200 mA h g(-1) at 0.8 A g(-1) and an excellent rate capability of 1025 mA h g(-1) at 4 A g(-1) after 200 cycles.cs
dc.language.isoencs
dc.publisherScience China Presscs
dc.relation.ispartofseriesScience China Materialscs
dc.relation.urihttps://doi.org/10.1007/s40843-021-2031-8cs
dc.rights© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2022cs
dc.subjectSi/C composite electrodecs
dc.subjectmechanical cushioncs
dc.subjectelastic hollow GSscs
dc.titleEnhanced performance of Si-based Li-ion batteries through elastic cushioning with hollow graphene shellscs
dc.typearticlecs
dc.identifier.doi10.1007/s40843-021-2031-8
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume65cs
dc.description.issue9cs
dc.description.lastpage2353cs
dc.description.firstpage2343cs
dc.identifier.wos000798084500001


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record