کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5349509 1503546 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Operando study of Fe3O4 anodes by electrochemical atomic force microscopy
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Operando study of Fe3O4 anodes by electrochemical atomic force microscopy
چکیده انگلیسی
Present study provided visual evidence of solid electrolyte interphase (SEI) layer formation on Fe3O4 anode during charge and discharge using in situ electrochemical atomic force microscopy. AFM images show that SEI layer formed on Fe3O4 electrode from fluoroethylene carbonate (FEC)-based electrolyte was more stable and compact than that formed from ethylene carbonate (EC)-based electrolyte. In addition, presence of surface cracks on the electrodes indicated poor formation of an intact SEI layer. This observation was more apparent in the EC-based electrolyte. Lack of an intact SEI layer resulted in decomposition of electrolytes which were reflected by presence of large air bubbles and dendrites on the electrode during CV. Although FEC-based electrolyte improved the performance of Fe3O4 anodes in lithium ion batteries, its protective effects were far from perfect. To accelerate the application of Fe3O4 or other metal oxide anodes in lithium ion batteries, better electrolytes and sophisticated carbon coating techniques are needed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 426, 31 December 2017, Pages 217-223
نویسندگان
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