Overall structural modification of a layered Ni-rich cathode for enhanced cycling stability and rate capability at high voltage

2019 ◽  
Vol 7 (11) ◽  
pp. 6080-6089 ◽  
Author(s):  
Manjing Tang ◽  
Jun Yang ◽  
Nantao Chen ◽  
Shengcai Zhu ◽  
Xing Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
High Voltage ◽  
Structural Modification ◽  
Rate Capability ◽  
Cycling Stability ◽  
Transport Kinetics

Overall structural modification, integrating coating and doping, was developed to enhance the structural stability and Li+ transport kinetics in a layered Ni-rich cathode, which significantly improves the electrochemical performance at high voltage.

scholarly journals Improved electrochemical performance of nitrogen doped TiO2-B nanowires as anode materials for Li-ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12215-12224 ◽  
Author(s):  
Yongquan Zhang ◽  
Qiang Fu ◽  
Qiaoling Xu ◽  
Xiao Yan ◽  
Rongyu Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
Anode Materials ◽  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Doped Tio2 ◽  
Nitrogen Doped ◽  
Li Ion

The substituted-N plays a key role in improving the conductivity and structural stability of TiO2-B. Thereout, the rate capability and cycling stability of the TiO2-B nanowires are significantly improved.

Facile synthesis of three-dimensional flower-like MoO2–graphene nanostructures with enhanced electrochemical performance

2016 ◽  
Vol 4 (27) ◽  
pp. 10414-10418 ◽  
Author(s):  
Ying Ma ◽  
Yulong Jia ◽  
Lina Wang ◽  
Min Yang ◽  
Yingpu Bi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Hydrothermal Reaction ◽  
Three Dimensional ◽  
Rate Capability ◽  
Cycling Stability ◽  
Facile Synthesis ◽  
Enhanced Electrochemical Performance ◽  
Good Rate Capability ◽  
Graphene Nanostructures

Three-dimensional MoO2–G flower-like nanostructures were synthesized through a facile hydrothermal reaction and showed significantly improved specific capacitance, good rate capability and cycling stability.

The effects of FePO4-coating on high-voltage cycling stability and rate capability of Li[Ni0.5Co0.2Mn0.3]O2

2012 ◽  
Vol 541 ◽  
pp. 125-131 ◽  
Author(s):  
Yansong Bai ◽  
Xianyou Wang ◽  
Shunyi Yang ◽  
Xiaoyan Zhang ◽  
Xiukang Yang ◽  
...  
Keyword(s):  
High Voltage ◽  
Rate Capability ◽  
Cycling Stability

scholarly journals Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5−xO4 (x = 0.1)

2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Yun Xu ◽  
Mingyang Zhao ◽  
Syed Khalid ◽  
Hongmei Luo ◽  
Kyle S. Brinkman
Keyword(s):  
Electrochemical Performance ◽  
High Voltage ◽  
Cathode Materials ◽  
Metal Ion ◽  
Structural Changes ◽  
Rate Capability ◽  
Performance Testing ◽  
Capacity Loss ◽  
Stable Performance ◽  
Li Ion

The high voltage cathode material, LiMn1.6Ni0.4O4, was prepared by a polymer-assisted method. The novelty of this work is the substitution of Ni with Mn, which already exists in the crystal structure instead of other isovalent metal ion dopants which would result in capacity loss. The electrochemical performance testing including stability and rate capability was evaluated. The temperature was found to impose a change on the valence and structure of the cathode materials. Specifically, manganese tends to be reduced at a high temperature of 800 °C and leads to structural changes. The manganese substituted LiMn1.5Ni0.5O4 (LMN) has proved to be a good candidate material for Li-ion battery cathodes displaying good rate capability and capacity retention. The cathode materials processed at 550 °C showed a stable performance with negligible capacity loss for 400 cycles.

Excellent high rate capability and high voltage cycling stability of Y2O3-coated LiNi0.5Co0.2Mn0.3O2

2014 ◽  
Vol 267 ◽  
pp. 874-880 ◽  
Author(s):  
Xue-Hui Liu ◽  
Li-Qin Kou ◽  
Ting Shi ◽  
Kun Liu ◽  
Li Chen
Keyword(s):  
High Voltage ◽  
Rate Capability ◽  
Cycling Stability ◽  
High Rate ◽  
High Rate Capability

The effect of various electrolyte cations on electrochemical performance of polypyrrole/RGO based supercapacitors

2015 ◽  
Vol 17 (43) ◽  
pp. 28666-28673 ◽  
Author(s):  
Jianbo Zhu ◽  
Youlong Xu ◽  
Jie Wang ◽  
Jun Lin ◽  
Xiaofei Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Rate Capability ◽  
Cycling Stability ◽  
Capacitance Performance

Cationic mobility determines capacitance performance and rate capability in various electrolytes, while cycling stability is strongly dependent on the cationic size.

A comprehensive study of the multiple effects of Y/Al substitution on O3-type NaNi0.33Mn0.33Fe0.33O2 with improved cycling stability and rate capability for Na-ion battery applications

Nanoscale ◽  
2020 ◽  
Vol 12 (32) ◽  
pp. 16831-16839
Author(s):  
Na Li ◽  
Kang Wu ◽  
Yu Lin Lee ◽  
Dang Rongbin ◽  
Xin Deng ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Bond Energy ◽  
Rate Capability ◽  
Cycling Stability ◽  
Al Substitution ◽  
The Relationship ◽  
Comprehensive Study

The relationship between bond energy and electrochemical performance was studied through substituting Mn in O3-NaNi0.33Mn0.33Fe0.33O2 oxide with Y and Al.

A Bowknot-like RuO2 quantum dots@V2O5 cathode with largely improved electrochemical performance

2014 ◽  
Vol 16 (35) ◽  
pp. 18680-18685 ◽  
Author(s):  
Xiujuan Wei ◽  
Qinyou An ◽  
Qiulong Wei ◽  
Mengyu Yan ◽  
Xuanpeng Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrochemical Performance ◽  
Rate Capability ◽  
Cycling Stability

A Bowknot-like RuO2 quantum dots@V2O5 cathode exhibits superior rate capability and cycling stability.

Nickel sulfide anchored carbon nanotubes for all-solid-state lithium batteries with enhanced rate capability and cycling stability

2018 ◽  
Vol 6 (25) ◽  
pp. 12098-12105 ◽  
Author(s):  
Qiang Zhang ◽  
Gang Peng ◽  
Jean Pierre Mwizerwa ◽  
Hongli Wan ◽  
Liangting Cai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solid State ◽  
Structural Stability ◽  
Lithium Batteries ◽  
Nickel Sulfide ◽  
Rate Capability ◽  
Cycling Stability ◽  
Electronic Conduction ◽  
Cycling Performances

All-solid-state lithium batteries employing NiS–CNT nanocomposites as cathodes exhibit superior rate capability and cycling performances owing to their excellent ionic/electronic conduction and structural stability.

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