کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6605668 | 459521 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of Li/Ni antisite defects in Fd-3Â m and P4332 nanostructured LiNi0.5Mn1.5O4 electrode for Li-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparison of Li/Ni antisite defects in Fd-3Â m and P4332 nanostructured LiNi0.5Mn1.5O4 electrode for Li-ion batteries Comparison of Li/Ni antisite defects in Fd-3Â m and P4332 nanostructured LiNi0.5Mn1.5O4 electrode for Li-ion batteries](/preview/png/6605668.png)
چکیده انگلیسی
Nanostructured LiNi0.5Mn1.5O4 with two different space groups (P4332 and Fd-3m) were synthesized respectively, by using ammonia-mediated carbonate precipitation. X-ray diffraction and Rietveld refinement revealed that Li/Ni antisite defects exist in ordered as well as disordered LiNi0.5Mn1.5O4 cathode materials. Although the degree of Li/Ni antisite defects in Fd-3Â m space group was larger compared with that in P4332 space group, it showed better electrochemical performance. Electrochemical impedance spectroscopy confirmed that the LiNi0.5Mn1.5O4 with an Fd-3Â m space group has lower charge transfer resistance. Combined with differential curves, we further revealed that there is a faster phase transition during the Li+ intercalation process in the LiNi0.5Mn1.5O4 with an Fd-3Â m space group than in the LiNi0.5Mn1.5O4 with a P4332 space group.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 213, 20 September 2016, Pages 368-374
Journal: Electrochimica Acta - Volume 213, 20 September 2016, Pages 368-374
نویسندگان
Yi-Jie Gu, Yu Li, Yun-Bo Chen, Hong-Quan Liu,