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Compositionally tuned NixSn alloys as anode materials for lithium-ion and sodium-ion batteries with a high pseudocapacitive contribution
Li, Junshan (Institut de Recerca en Energia de Catalunya)
Xu, Xijun (South China University of Technology. Key Laboratory of Advanced Energy Storage Materials)
Luo, Zhishan (Institut de Recerca en Energia de Catalunya)
Zhang, Chaoqi (Institut de Recerca en Energia de Catalunya)
Yu, Xiaoting (Institut de Recerca en Energia de Catalunya)
Zuo, Yong (Institut de Recerca en Energia de Catalunya)
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia)
Tang, PengYi (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química)
Liu, Jun (South China University of Technology. Key Laboratory of Advanced Energy Storage Materials)
Cabot, Andreu (Institució Catalana de Recerca i Estudis Avançats)

Date: 2019
Abstract: Nickel 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, Ni₀₉Sn-based electrodes exhibited the best performance in both LIBs and SIBs. As LIB anodes, Ni₀₉Sn-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 Ni Sn-based electrodes for SIBs when compared with LIBs, consistently with the lower contribution of the Na ion diffusion associated to its larger size.
Note: Número d'acord de subvenció MINECO/ENE2017-85087-C3
Note: Número d'acord de subvenció MINECO/ENE2016-77798-C4-3-R
Note: Número d'acord de subvenció MINECO/ENE2015-63969-R
Note: Número d'acord de subvenció MINECO/SEV-2013-0295
Note: Número d'acord de subvenció AGAUR/2017/SGR-327
Note: Número d'acord de subvenció AGAUR/2017/SGR-128
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. Creative Commons
Language: Anglès.
Document: article ; recerca ; acceptedVersion
Subject: Colloidal bimetallic nanoparticles ; Nickel tin alloy ; Anode materials ; Lithium-ion batteries ; Sodium-ion batteries
Published in: Electrochimica acta, Vol. 304 (Jan. 2019) , p. 246-254, ISSN 0013-4686

DOI: 10.1016/j.electacta.2019.02.098


Available from: 2021-01-30
Postprint

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2019-11-19, last modified 2020-01-17



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