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2020-08-20Zeitschriftenartikel DOI: 10.18452/22096
Assessment on the Use of High Capacity “Sn4P3”/NHC Composite Electrodes for Sodium-Ion Batteries with Ether and Carbonate Electrolytes
dc.contributor.authorThangavelu, Palaniselvam
dc.contributor.authorMukundan, Charan
dc.contributor.authorHasa, Ivana
dc.contributor.authorAggunda Lingamurthy, Santhosha
dc.contributor.authorGOKTAS, Mustafa
dc.contributor.authorMoon, Hyein
dc.contributor.authorRuttert, Mirco
dc.contributor.authorSchmuch, Richard
dc.contributor.authorPollok, Kilian
dc.contributor.authorLangenhorst, Falko
dc.contributor.authorWinter, Martin
dc.contributor.authorPasserini, Stefano
dc.contributor.authorAdelhelm, Philipp
dc.date.accessioned2020-10-30T10:06:20Z
dc.date.available2020-10-30T10:06:20Z
dc.date.issued2020-08-20none
dc.identifier.other10.1002/adfm.202004798
dc.identifier.urihttp://edoc.hu-berlin.de/18452/22756
dc.description.abstractThis work reports the facile synthesis of a Sn–P composite combined with nitrogen doped hard carbon (NHC) obtained by ball‐milling and its use as electrode material for sodium ion batteries (SIBs). The “Sn4P3”/NHC electrode (with nominal composition “Sn4P3”:NHC = 75:25 wt%) when coupled with a diglyme‐based electrolyte rather than the most commonly employed carbonate‐based systems, exhibits a reversible capacity of 550 mAh gelectrode−1 at 50 mA g−1 and 440 mAh gelectrode−1 over 500 cycles (83% capacity retention). Morphology and solid electrolyte interphase formation of cycled “Sn4P3”/NHC electrodes is studied via electron microscopy and X‐ray photoelectron spectroscopy. The expansion of the electrode upon sodiation (300 mAh gelectrode−1) is only about 12–14% as determined by in situ electrochemical dilatometry, giving a reasonable explanation for the excellent cycle life despite the conversion‐type storage mechanism. In situ X‐ray diffraction shows that the discharge product is Na15Sn4. The formation of mostly amorphous Na3P is derived from the overall (electro)chemical reactions. Upon charge the formation of Sn is observed while amorphous P is derived, which are reversibly alloying with Na in the subsequent cycles. However, the formation of Sn4P3 can be certainly excluded.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC 4.0) Attribution-NonCommercial 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectanodeeng
dc.subjectdiglymeeng
dc.subjecthigh capacityeng
dc.subjectin situ XRDeng
dc.subjectsodium-ion batteryeng
dc.subjecttin phosphideeng
dc.subjectvolume expansioneng
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitennone
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftennone
dc.subject.ddc530 Physiknone
dc.titleAssessment on the Use of High Capacity “Sn4P3”/NHC Composite Electrodes for Sodium-Ion Batteries with Ether and Carbonate Electrolytesnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/22756-4
dc.identifier.doihttp://dx.doi.org/10.18452/22096
dc.type.versionpublishedVersionnone
local.edoc.container-titleAdvanced functional materialsnone
local.edoc.pages12none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameWiley-VCHnone
local.edoc.container-publisher-placeWeinheimnone
local.edoc.container-volume30none
local.edoc.container-issue42none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber2004798none
dc.identifier.eissn1616-3028

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