کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11026555 | 1666374 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigating the enhanced kinetics of LiNi0.08Mn1.92O4 cathode material by regulating calcination temperature for long life lithium-ion battery
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigating the enhanced kinetics of LiNi0.08Mn1.92O4 cathode material by regulating calcination temperature for long life lithium-ion battery Investigating the enhanced kinetics of LiNi0.08Mn1.92O4 cathode material by regulating calcination temperature for long life lithium-ion battery](/preview/png/11026555.png)
چکیده انگلیسی
Various LiNi0.08Mn1.92O4 cathode materials were prepared by a solution combustion method at 500â¯Â°C for 1â¯h combined with two-stage calcination at 600, 650, 700, and 750â¯Â°C for 3â¯h, respectively. Systematic characterization and test approaches were carried out to investigate the effect of calcination temperature on the crystal structure, morphology, electrochemical performance and kinetics properties of the as-obtained LiNi0.08Mn1.92O4 samples. As a result, all the LiNi0.08Mn1.92O4 samples show the intrinsic spinel phase with a good crystallinity. The particles size increases with the increased calcination temperature. Especially, the LiNi0.08Mn1.92O4 sample prepared at 700â¯Â°C (LNMO-700) has a great Li+ ion diffusion coefficient and a low apparent activation energy, resulting in an enhanced kinetics. Owing to these merits, the optimized LNMO-700 cathode material exhibits a high initial discharge capacity of 105.0â¯mAh gâ1 and improved retention of 68.6% after 1000 cycles at 1â¯C, whilst delivers a good rate capability of 95.7â¯mAh gâ1 at a high current rate of 5â¯C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 158, December 2018, Pages 223-230
Journal: Vacuum - Volume 158, December 2018, Pages 223-230
نویسندگان
Yao Lu, Xueying Luo, Hongli Bai, Junming Guo, Mingwu Xiang, Changwei Su, Xiaofang Liu, Wei Bai, Rui Wang,