کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6605072 1424099 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-assembled nickel-cobalt oxide microspheres from rods with enhanced electrochemical performance for sodium ion battery
ترجمه فارسی عنوان
میکروسکپ های اکسید نیکل کبالت خود را از میله ها با عملکرد الکتروشیمیایی افزایش یافته برای باتری یون سدیم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Exploring new anode materials with promising electrochemical capacity is essential for rechargeable sodium-ion batteries. The selection and structural design of electrode materials play key role in the development of a viable battery with high specific capacity and cycle retention. Herein, self-assembled NiCo2O4 microspheres comprised of numerous sub-micron sized rods are prepared for the first time by a simple co-precipitation method. The synthesized microspheres have homogeneous morphology and a multimodal porosity. The resulting sodium ion storage properties demonstrate that the NiCo2O4 microsphere anode offers excellent electrochemical performance, with a high reversible capacity of 620 mAh g−1 at a current density of 0.05 A g−1. It also shows an exceptionally high rate capability up to 10 A g−1 equivalent to 11 C-rate, which can be attributed to the existence of capacitive behavior. Notably, the rate performance and cycling stability are significantly higher than most previously reported results of NiCo2O4 nanostructures for sodium-ion batteries (SIBs).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 258, 20 December 2017, Pages 220-227
نویسندگان
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