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dc.contributor.authorLi, Junshan
dc.contributor.authorXu, Xijun
dc.contributor.authorLuo, Zhishan
dc.contributor.authorZhang, Chaoqi
dc.contributor.authorYu, Xiaoting
dc.contributor.authorZuo, Yong
dc.contributor.authorAlbiol, Jordi
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.authorCabot, Andreu
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2019-11-21T14:48:48Z
dc.date.available2021-05-01T00:29:01Z
dc.date.issued2019-05-01
dc.identifier.citationLi, J. [et al.]. Compositionally tuned Ni x Sn alloys as anode materials for lithium-ion and sodium-ion batteries with a high pseudocapacitive contribution. "Electrochimica acta", 1 Maig 2019, vol. 304, p. 246-254.
dc.identifier.issn0013-4686
dc.identifier.urihttp://hdl.handle.net/2117/172836
dc.description.abstractNickel tin alloy nanoparticles (NPs) with tuned composition NixSn (0.6¿=¿x¿=¿1.9) were synthesized by a solution-based procedure and used as anode materials for Li-ion batteries (LIBs) and Na-ion batteries (SIBs). Among the compositions tested, Ni0.9Sn-based electrodes exhibited the best performance in both LIBs and SIBs. As LIB anodes, Ni0.9Sn-based electrodes delivered charge-discharge capacities of 980¿mAh g-1 after 340 cycles at 0.2¿A¿g-1 rate, which surpassed their maximum theoretical capacity considering that only Sn is lithiated. A kinetic characterization of the charge-discharge process demonstrated the electrode performance to be aided by a significant pseudocapacitive contribution that compensated for the loss of energy storage capacity associated to the solid-electrolyte interphase formation. This significant pseudocapacitive contribution, which not only translated into higher capacities but also longer durability, was associated to the small size of the crystal domains and the proper electrode composition. The performance of NixSn-based electrodes toward Na-ion storage was also characterized, reaching significant capacities above 200¿mAh g-1 at 0.1¿A¿g-1 but with a relatively fast fade over 120 continuous cycles. A relatively larger pseudocapacitive contribution was obtained in NixSn-based electrodes for SIBs when compared with LIBs, consistently with the lower contribution of the Na ion diffusion associated to its larger size.
dc.format.extent9 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshNanoparticles
dc.subject.lcshLithium ion batteries
dc.subject.lcshColloids
dc.subject.lcshNickel alloys
dc.subject.lcshTin alloys
dc.subject.otherBimetallic nanoparticles
dc.subject.otherNickel tin alloy
dc.subject.otherAnode materials
dc.subject.otherLithium-ion batteries
dc.subject.othersodiumion batteries
dc.subject.othercolloidal nanoparticles
dc.titleCompositionally tuned Ni x Sn alloys as anode materials for lithium-ion and sodium-ion batteries with a high pseudocapacitive contribution
dc.typeArticle
dc.subject.lemacNanopartícules
dc.subject.lemacBateries d'ió liti
dc.subject.lemacCol·loides
dc.subject.lemacNíquel -- Aliatges
dc.subject.lemacEstany -- Aliatges
dc.contributor.groupUniversitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia
dc.identifier.doi10.1016/j.electacta.2019.02.098
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S001346861930355X
dc.rights.accessOpen Access
local.identifier.drac24009725
dc.description.versionPostprint (author's final draft)
local.citation.authorLi, J.; Xu, X.; Luo, Z.; Zhang, C.; Yu, X.; Zuo, Y.; Albiol, J.; Llorca, J.; Cabot, A.
local.citation.publicationNameElectrochimica acta
local.citation.volume304
local.citation.startingPage246
local.citation.endingPage254


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