Improved electrochemical performance of high-nickel cathode material with electronic conductor RuO2 as the protecting layer for lithium-ion batteries

2020 ◽  
Vol 531 ◽  
pp. 147245 ◽  
Author(s):  
Gaoqiang Mao ◽  
Wanjing Yu ◽  
Qijie Zhou ◽  
Lingjun Li ◽  
Yingde Huang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Electronic Conductor ◽  
High Nickel

scholarly journals Improvement of long-term cycling performance of high-nickel cathode materials by ZnO coating

2021 ◽  
Vol 10 (1) ◽  
pp. 210-220
Author(s):  
Fangfang Wang ◽  
Ruoyu Hong ◽  
Xuesong Lu ◽  
Huiyong Liu ◽  
Yuan Zhu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Solid Phase ◽  
Low Cost ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Chemical Route ◽  
High Nickel

Abstract The high-nickel cathode material of LiNi0.8Co0.15Al0.05O2 (LNCA) has a prospective application for lithium-ion batteries due to the high capacity and low cost. However, the side reaction between the electrolyte and the electrode seriously affects the cycling stability of lithium-ion batteries. In this work, Ni2+ preoxidation and the optimization of calcination temperature were carried out to reduce the cation mixing of LNCA, and solid-phase Al-doping improved the uniformity of element distribution and the orderliness of the layered structure. In addition, the surface of LNCA was homogeneously modified with ZnO coating by a facile wet-chemical route. Compared to the pristine LNCA, the optimized ZnO-coated LNCA showed excellent electrochemical performance with the first discharge-specific capacity of 187.5 mA h g−1, and the capacity retention of 91.3% at 0.2C after 100 cycles. The experiment demonstrated that the improved electrochemical performance of ZnO-coated LNCA is assigned to the surface coating of ZnO which protects LNCA from being corroded by the electrolyte during cycling.

Facile synthesis and characterization of a SnO2-modified LiNi0.5Mn1.5O4 high-voltage cathode material with superior electrochemical performance for lithium ion batteries

2017 ◽  
Vol 19 (15) ◽  
pp. 9983-9991 ◽  
Author(s):  
Feng Ma ◽  
Fushan Geng ◽  
Anbao Yuan ◽  
Jiaqiang Xu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Lithium Ion ◽  
Synthesis And Characterization ◽  
Synthetic Method ◽  
Facile Synthesis ◽  
Li Ion

The SnO2-modified LiNi0.5Mn1.5O4 high-voltage Li-ion cathode material exhibits superior electrochemical performance, and the synthetic method has the advantage of being facile.

Cathode material LiNi0.8Co0.1Mn0.1O2/LaPO4 with high electrochemical performance for lithium-ion batteries

2018 ◽  
Vol 764 ◽  
pp. 44-50 ◽  
Author(s):  
Hui Tong ◽  
Pengyuan Dong ◽  
Jiafeng Zhang ◽  
Junchao Zheng ◽  
Wanjing Yu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion
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