Enhanced electrochemical performance of Li-rich cathode Li[Li0.2Mn0.54Ni0.13Co0.13]O2 by surface modification with lithium ion conductor Li3PO4

2016 ◽  
Vol 370 ◽  
pp. 437-444 ◽  
Author(s):  
Zhiyuan Wang ◽  
Shaohua Luo ◽  
Jie Ren ◽  
Dan Wang ◽  
Xiwei Qi
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Ion Conductor ◽  
Enhanced Electrochemical Performance

Enhancing Electrochemical Performance of LiNi0.6Co0.2Mn0.2O2 by Lithium-ion Conductor Surface Modification

2017 ◽  
Vol 224 ◽  
pp. 171-177 ◽  
Author(s):  
Siyang Liu ◽  
Congcong Zhang ◽  
Qili Su ◽  
Liangyu Li ◽  
Junming Su ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Ion Conductor ◽  
Conductor Surface

scholarly journals CaF2 Coated Li1.2Mn0.56Ni0.16Co0.08O2 Microspheres with Enhanced Electrochemical Performances as Lithium Ion Battery Cathode

2021 ◽  
Vol 27 (1) ◽  
pp. 3-7
Author(s):  
Yunlong ZHOU ◽  
Chenhao ZHAO ◽  
Kaiyu LIU ◽  
Zhibiao HU ◽  
Qing XU ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Coated Sample ◽  
Electrochemical Performances ◽  
Ion Conductor ◽  
High Discharge Capacity

Surface modification has been one of most effective methods to improve the electrochemical performance of lithium rich layered oxides. In this paper, the Li1.2Mn0.56Ni0.16Co0.08O2 microspheres are prepared by urea assisted combustion route, and then coated with proper amount of CaF2. XRD and SEM results show surface modification has not changed the structure of Li1.2Mn0.56Ni0.16Co0.08O2, and a uniform coating layer can be obtained. As lithium ion battery cathode, the optimal CaF2 (i.e, 2wt%) coated sample presents a high initial discharge capacity of 223 mAh·g-1 with Coulombic efficiency of 80.5% at 0.1C, which is much better than that of pristine sample. Also, a high discharge capacity of 119 mAh·g-1 can be obtained for CaF2 coated sample at 5C. The improved electrochemical performance may be attributed the formation of fast Li ion conductor on the surface supported by EIS study.

Self-assembly synthesis of nitrogen-doped mesoporous carbons used as high-performance electrode materials in lithium-ion batteries and supercapacitors

2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Self Assembly ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Mesoporous Carbons ◽  
Nitrogen Doped ◽  
First Time ◽  
Enhanced Electrochemical Performance

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.

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