期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 9, 期 8, 页码 1877-1880出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2007.04.020
关键词
nanostructured NiS; polyol route; lithium rechargeable batteries
Nanostructured nickel sulfide (NiS) was synthesized via a simple polyol route. The NiS powders were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and electrochemical testing. The results revealed that the cycle life of the annealed NiS sample was improved over that of the as-prepared sample. The electrochemical performance was also tested using I M lithium trifluoromethanesulfonimide (LiTFSI) in a solvent of poly(ethylene glycol) dimethyl ether (PEGDME) in order to compare with a sample tested in the conventional electrolyte of I M LiPF6 in a mixture of ethylene carbonate (EC) and dimethyl carbonate (DMC). The results showed that the electrochemical properties were improved by using the 1 M LiTFSI/PEGDME electrolyte. (c) 2007 Elsevier B.V. All rights reserved.
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