Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 166, Issue 10, Pages D427-D434Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0881910jes
Keywords
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Funding
- National Natural Science Foundation of China [51574164]
- Iron and Steel Joint Research Found of National Natural Science Foundation [U1860203]
- Iron and Steel Joint Research Found of China Baowu Steel Group Corporation Limited [U1860203]
- Shanghai Rising-Star Program [19QA1403600]
- CAS Interdisciplinary Innovation Team
- Strategic Research grant at City University of Hong Kong [7004928, 6000595, 9052029, 9680208]
- SZSTI grant at City University of Hong Kong [R-IND12301]
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Porous Sn-Ni-Cu alloy films have been prepared by electrodeposition on Ni foam from nickel matte in choline chloride/ethylene glycol (1: 2 molar ratio) based deep eutectic solvent (12CE DES). The electrodeposition process, the phase composition and morphology of the deposited Sn-Ni-Cu alloy films have been systematically investigated, the electrochemical performances of the porous Sn-Ni-Cu alloy films as anode material for lithium-ion batteries have also been evaluated. The results show that the deposited Sn-Ni-Cu alloy films mainly consist of CuNi2Sn and Ni3Sn2 phases with porous structure. The cathodic potential has significant influence on the microstructures and electrochemical performances of the deposited Sn-Ni-Cu alloy films. The Sn-Ni-Cu alloy film electrodeposited at -0.4 V in 12CE DES dissolved with SnCl2 and chlorinated nickel matte shows a high reversible capacity of 533 mAh g(-1) after 50 cycles. The excellent electrochemical performance can be attributed to the porous structure and the existence of Ni and Cu. It is suggested that the deposited Sn-Ni-Cu alloy is a promising candidate as anode material for lithium-ion batteries and can be simply deposited from abundant and inexpensive nickel matte in deep eutectic solvent. (c) 2019 The Electrochemical Society.
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