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

Enhanced electrochemical performance of Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 by surface modification with the fast lithium-ion conductor Li-La-Ti-O

2017 ◽  
Vol 364 ◽  
pp. 272-279 ◽  
Author(s):  
Hongzhou Zhang ◽  
Tonghuan Yang ◽  
Yan Han ◽  
Dawei Song ◽  
Xixi Shi ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Ion Conductor ◽  
Enhanced Electrochemical Performance

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

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.

scholarly journals Enhanced Structural Integrity and Electrochemical Performance of AlPO4-Coated MoO2 Anode Material for Lithium-Ion Batteries

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
José I. López-Pérez ◽  
Edwin O. Ortiz-Quiles ◽  
Khaled Habiba ◽  
Mariel Jiménez-Rodríguez ◽  
Brad R. Weiner ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Anode Material ◽  
Structural Integrity ◽  
Electrochemical Impedance ◽  
Lattice Structure ◽  
Rate Capability ◽  
Lithium Ion ◽  
Microscopy Imaging ◽  
Voltage Range

AlPO4 nanoparticles were synthesized via chemical deposition method and used for the surface modification of MoO2 to improve its structural stability and electrochemical performance. Structure and surface morphology of pristine and AlPO4-coated MoO2 anode material were characterized by electron microscopy imaging (SEM and TEM) and X-ray diffraction (XRD). AlPO4 nanoparticles were observed, covering the surface of MoO2. Surface analyses show that the synthesized AlPO4 is amorphous, and the surface modification with AlPO4 does not result in a distortion of the lattice structure of MoO2. The electrochemical properties of pristine and AlPO4-coated MoO2 were characterized in the voltage range of 0.01–2.5 V versus Li/Li+. Cyclic voltammetry studies indicate that the improvement in electrochemical performance of the AlPO4-coated anode material was attributed to the stabilization of the lattice structure during lithiation. Galvanostatic charge/discharge and electrochemical impedance spectroscopy (EIS) studies reveal that the AlPO4 nanoparticle coating improves the rate capability and cycle stability and contributes toward decreasing surface layer and charge-transfer resistances. These results suggest that surface modification with AlPO4 nanoparticles suppresses the elimination of oxygen vacancies in the lattice structure during cycling, leading to a better rate performance and cycle life.

Enhanced Electrochemical Performance of Nickel-Rich Cathode Materials by Surface Modification with Al2O3-ZrO2 for lithium ion batteries

NANO ◽  
2021 ◽  
Author(s):  
Tianqi Zhou ◽  
Canxing Yang ◽  
Han Wu ◽  
Guodong Jiang ◽  
Jian Xiong ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Enhanced Electrochemical Performance

scholarly journals Improving the Electrochemical Performance of LiNi0.80Co0.15Al0.05O2 in Lithium Ion Batteries by LiAlO2 Surface Modification

2018 ◽  
Vol 8 (3) ◽  
pp. 378 ◽  
Author(s):  
Chunhua Song ◽  
Wenge Wang ◽  
Huili Peng ◽  
Ying Wang ◽  
Chenglong Zhao ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion

Enhanced High‐Temperature Electrochemical Performance of Layered Nickel‐Rich Cathodes for Lithium‐Ion Batteries after LiF Surface Modification

2019 ◽  
Vol 6 (21) ◽  
pp. 5428-5432 ◽  
Author(s):  
Jinlong Huang ◽  
Ke Du ◽  
Zhongdong Peng ◽  
Yanbing Cao ◽  
Zhichen Xue ◽  
...  
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion
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