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Co-Sn Nanocrystalline Solid Solutions as Anode Materials in Lithium-Ion Batteries with High Pseudocapacitive Contribution.

时间：2019-04-09作者：浏览量：416


Co-Sn Nanocrystalline Solid Solutions as Anode Materials in Lithium-Ion Batteries with High Pseudocapacitive Contribution.

作者:Li, Junshan; Xu, Xijun; Luo, Zhishan; Zhang, Chaoqi; Zuo, Yong; Zhang, Ting; Tang, Pengyi; Infante-Carrio, Maria F; Arbiol, Jordi; Llorca, Jordi...更多内容

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ChemSusChem


DOI:10.1002/cssc.201802662

出版年:2019-Jan-24 (Epub 2019 Jan 24)

文献类型:Journal Article

摘要


Co-Sn solid-solution nanoparticles with Sn crystal structure and tuned metal ratios were synthesized by a facile one pot solution-based procedure involving the initial reduction of a Sn precursor followed by incorporation of Co within the Sn lattice. These nanoparticles were used as anode materials for Li-ion batteries. Among the different compositions tested, Co0.7 Sn and Co0.9 Sn electrodes provided the highest capacities with values above 1500 mAhg-1 at a current density of 0.2 Ag-1 after 220 cycles, and up to 800 mAhg-1 at 1.0 Ag-1 after 400 cycles. Up to 81% pseudocapacitance contribution was measured for these electrodes at a sweep rate of 1.0 mVs-1 , thereby indicating fast kinetics and long durability. The excellent performance of Co-Sn nanoparticle alloy-based electrodes was attributed to both the small size of the crystal domains and their suitable composition, which buffered volume changes of Sn and contributed to a suitable electrode restructuration.
 © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.


关键词

关键词列表:anode; bimetallic nanoparticles; colloidal; lithium-ion batteries; solid solutions

作者信息

地址:Catalonia Institute for Energy Research-IREC, Sant Adria de Besos, Barcelona, 08930, Spain.
Departament d'Electronica, Universitat de Barcelona, 08028, Barcelona, Spain.
Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China.
SUNWODA-SCUT Joint Laboratory for Advanced Energy Storage Technology, South China University of Technology, Guangzhou, 510641, P. R. China.
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
ICREA, Pg. Lluis Companys 23, 08010, Barcelona, Spain.
Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politecnica de Catalunya, EEBE, 08019, Barcelona, Spain.

基金资助致谢

基金资助信息:

ID机构
ENE2016-77798-C4-3-RSpanish Ministerio de Economia y Competitividad
51771076National Natural Science Foundation of China
2017A010104004Project of Public Interest Research and Capacity Building of Guangdong Province
ENE2017-85087-C3Generalitat de Catalunya 2017 SGR 327 and the Spanish MINECO
SEV-2013-0295Severo Ochoa Programme
ENE2015-63969-RICREA Academia program and MINECO/FEDER


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