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Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries.
Sci Rep. 2019 May 29; 9(1):7988.SR

Abstract

Rechargeable magnesium batteries are appealing as safe, low-cost systems with high-energy-density storage that employ predominantly dendrite-free magnesium metal as the anode. While significant progress has been achieved with magnesium electrolytes in recent years, the further development of Mg-ion batteries, however, is inherently limited by the lack of suitable cathode materials, mainly due to the slow diffusion of high-charge-density Mg-ions in the intercalation-type host structures and kinetic limitations of conversion-type cathodes that often causes poor cyclic stability. Nanostructuring the cathode materials offers an effective means of mitigating these challenges, due to the reduced diffusion length and higher surface areas. In this context, we present the highly reversible insertion of Mg-ions into nanostructured conversion-type CuS cathode, delivering high capacities of 300 mAh g-1 at room temperature and high cyclic stability over 200 cycles at a current density of 0.1 A g-1 with a high coulombic efficiency of 99.9%. These materials clearly outperform bulk CuS, which is electrochemically active only at an elevated temperature of 50 °C. Our results not only point to the important role of nanomaterials in the enhancement of the kinetics of conversion reactions but also suggest that nanostructuring should be used as an integral tool in the exploration of new cathodes for multivalent, i.e., (Mg, Ca, Al)-ion batteries.

Authors+Show Affiliations

Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zürich, Switzerland. kravchyk@inorg.chem.ethz.ch. Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland. kravchyk@inorg.chem.ethz.ch.Nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zürich, Switzerland. Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zürich, Switzerland. mvkovalenko@ethz.ch. Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland. mvkovalenko@ethz.ch.Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland. maryna.bodnarchuk@empa.ch.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31142752

Citation

Kravchyk, Kostiantyn V., et al. "Copper Sulfide Nanoparticles as High-performance Cathode Materials for Mg-ion Batteries." Scientific Reports, vol. 9, no. 1, 2019, p. 7988.
Kravchyk KV, Widmer R, Erni R, et al. Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries. Sci Rep. 2019;9(1):7988.
Kravchyk, K. V., Widmer, R., Erni, R., Dubey, R. J., Krumeich, F., Kovalenko, M. V., & Bodnarchuk, M. I. (2019). Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries. Scientific Reports, 9(1), 7988. https://doi.org/10.1038/s41598-019-43639-z
Kravchyk KV, et al. Copper Sulfide Nanoparticles as High-performance Cathode Materials for Mg-ion Batteries. Sci Rep. 2019 May 29;9(1):7988. PubMed PMID: 31142752.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Copper sulfide nanoparticles as high-performance cathode materials for Mg-ion batteries. AU - Kravchyk,Kostiantyn V, AU - Widmer,Roland, AU - Erni,Rolf, AU - Dubey,Romain J-C, AU - Krumeich,Frank, AU - Kovalenko,Maksym V, AU - Bodnarchuk,Maryna I, Y1 - 2019/05/29/ PY - 2019/01/14/received PY - 2019/04/15/accepted PY - 2019/5/31/entrez PY - 2019/5/31/pubmed PY - 2019/5/31/medline SP - 7988 EP - 7988 JF - Scientific reports JO - Sci Rep VL - 9 IS - 1 N2 - Rechargeable magnesium batteries are appealing as safe, low-cost systems with high-energy-density storage that employ predominantly dendrite-free magnesium metal as the anode. While significant progress has been achieved with magnesium electrolytes in recent years, the further development of Mg-ion batteries, however, is inherently limited by the lack of suitable cathode materials, mainly due to the slow diffusion of high-charge-density Mg-ions in the intercalation-type host structures and kinetic limitations of conversion-type cathodes that often causes poor cyclic stability. Nanostructuring the cathode materials offers an effective means of mitigating these challenges, due to the reduced diffusion length and higher surface areas. In this context, we present the highly reversible insertion of Mg-ions into nanostructured conversion-type CuS cathode, delivering high capacities of 300 mAh g-1 at room temperature and high cyclic stability over 200 cycles at a current density of 0.1 A g-1 with a high coulombic efficiency of 99.9%. These materials clearly outperform bulk CuS, which is electrochemically active only at an elevated temperature of 50 °C. Our results not only point to the important role of nanomaterials in the enhancement of the kinetics of conversion reactions but also suggest that nanostructuring should be used as an integral tool in the exploration of new cathodes for multivalent, i.e., (Mg, Ca, Al)-ion batteries. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/31142752/Copper_sulfide_nanoparticles_as_high_performance_cathode_materials_for_Mg_ion_batteries_ L2 - http://dx.doi.org/10.1038/s41598-019-43639-z DB - PRIME DP - Unbound Medicine ER -
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