Li/Fe substitution in Li-rich Ni, Co, Mn oxides for enhanced electrochemical performance as cathode materials

2019 ◽  
Vol 7 (25) ◽  
pp. 15215-15224 ◽  
Author(s):  
Juliette Billaud ◽  
Denis Sheptyakov ◽  
Sébastien Sallard ◽  
Daniela Leanza ◽  
Michael Talianker ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Manganese Oxides ◽  
Rate Capability ◽  
Potential Drop ◽  
Specific Charge ◽  
Nickel Cobalt ◽  
Charge Potential ◽  
Enhanced Electrochemical Performance ◽  
Fe Substitution ◽  
Mn Oxides

The addition of Fe in Li-rich nickel cobalt manganese oxides allows for higher specific charge, potential drop mitigation and enhanced rate capability.

A metal–organic framework derived hierarchical nickel–cobalt sulfide nanosheet array on Ni foam with enhanced electrochemical performance for supercapacitors

2018 ◽  
Vol 47 (10) ◽  
pp. 3496-3502 ◽  
Author(s):  
Kai Tao ◽  
Xue Han ◽  
Qingxiang Ma ◽  
Lei Han
Keyword(s):  
Electrochemical Performance ◽  
Metal Organic Framework ◽  
Cobalt Sulfide ◽  
Ni Foam ◽  
Templating Method ◽  
Capacitive Performance ◽  
Nanosheet Array ◽  
Nickel Cobalt ◽  
Metal Organic ◽  
Enhanced Electrochemical Performance

A hierarchical Ni–Co–S nanosheet array is realized via a facile 2D Co-MOF templating method and it shows enhanced capacitive performance.

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.

Li+-conductive Li2SiO3 stabilized Li-rich layered oxide with an in situ formed spinel nano-coating layer: toward enhanced electrochemical performance for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34245-34253 ◽  
Author(s):  
Mingquan Xu ◽  
Qingwang Lian ◽  
Yuxin Wu ◽  
Cheng Ma ◽  
Pengfei Tan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Coating Layer ◽  
Rate Capability ◽  
Lithium Ion ◽  
Operating Voltage ◽  
Layered Oxide ◽  
Nano Coating ◽  
Enhanced Electrochemical Performance

A novel Li2SiO3 layered@spinel heterostructured material with superior rate capability and stabilized operating voltage was achieved.

Carbon coated nickel–cobalt bimetallic sulfides hollow dodecahedrons for a supercapacitor with enhanced electrochemical performance

2018 ◽  
Vol 42 (7) ◽  
pp. 5128-5134 ◽  
Author(s):  
Teng Huang ◽  
Xue-Zhi Song ◽  
Xi Chen ◽  
Xiao-Lei Chen ◽  
Fei-Fei Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Nickel Cobalt ◽  
Carbon Coated ◽  
Enhanced Electrochemical Performance

Bimetallic sulfides coated by carbon hollow dodecahedrons were synthesized from bimetallic ZIFs as precursors and exhibited enhanced electrochemical performance as supercapacitors.

TiO2-B/Ag Nanocomposite Wires Enhanced Electrochemical Performance for Li-ion Batteries

2017 ◽  
Vol 20 (4) ◽  
pp. 183-188 ◽  
Author(s):  
Jinlong Wang ◽  
Kaixin Song ◽  
Changqing Tong ◽  
Guanglei Tian ◽  
Jun Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Diffusion Length ◽  
Rate Capability ◽  
Performance Tests ◽  
Performance Difference ◽  
Li Ion Batteries ◽  
Silver Particles ◽  
Ion Diffusion ◽  
Li Ion ◽  
Enhanced Electrochemical Performance

In this work, the pristine and Ag-composited TiO2-Bronze (TiO2-B) nanowires are successfully synthesized by hydrothermal method using anatase(P25) as titanium source. The SEM, TEM results reveal that the silver particles are well distributed on the TiO2-B nanowires. Also, the TiO2-B/Ag nanowires are dispersed very well, which demonstrate more Li-ion insertion/extraction hosts exposed to the electrolyte. Moreover, the electrochemical performance tests suggest that compared with the pristine TiO2-B, the Ag-composited TiO2-B (TiO2-B/Ag) shows remarkably higher capacities (~286mAhg-1, closing to the theoretical capacity) and superior rate capability. The reasons causing this performance difference are ascribed to the added silver particles, which could reduce the Li-ion diffusion length and improve the material electrical conductivity.

A peanut-like hierarchical micro/nano-Li1.2Mn0.54Ni0.18Co0.08O2 cathode material for lithium-ion batteries with enhanced electrochemical performance

2015 ◽  
Vol 3 (27) ◽  
pp. 14291-14297 ◽  
Author(s):  
Yi-di Zhang ◽  
Yi Li ◽  
Xiao-qing Niu ◽  
Dong-huang Wang ◽  
Ding Zhou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Solvothermal Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cyclic Stability ◽  
Enhanced Electrochemical Performance

A novel peanut-like hierarchical micro/nano-lithium-rich cathode material with superior cyclic stability and enhanced rate capability is synthesized via a solvothermal method.

Hierarchical Cu2S@NiCo-LDH double-shelled nanotube arrays with enhanced electrochemical performance for hybrid supercapacitors

2020 ◽  
Vol 8 (42) ◽  
pp. 22163-22174
Author(s):  
Ze Yuan ◽  
Haiyan Wang ◽  
Junling Shen ◽  
Pengcheng Ye ◽  
Jiqiang Ning ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Rate Capability ◽  
High Energy ◽  
High Energy Density ◽  
Nanotube Arrays ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Enhanced Electrochemical Performance

Hierarchical Cu2S@NiCo-LDH double-shelled nanotube arrays (Cu2S@NiCo-LDH DSNAs) are prepared by a multi-step approach, and the fabricated Cu2S@NiCo-LDH DSNAs//NPC hybrid supercapacitor exhibits a high energy density and remarkable rate capability.

Controllable fabrication of LiMnPO4 microspheres assembled by radially arranged nanoplates with highly exposed (010) facets for an enhanced electrochemical performance

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7217-7223
Author(s):  
Xiaoliang Pan ◽  
Zhi Gao ◽  
Lijun Liu ◽  
Shikun Xie ◽  
Huiling Yuan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Rate Capability ◽  
Hollow Microspheres ◽  
Controllable Fabrication ◽  
Enhanced Electrochemical Performance

LiMnPO4 hollow microspheres assembled by radially aligned nanoplates with a high percentage of exposed (010) facets are prepared to improve the rate capability.

Manganese oxides transformed from orthorhombic phase to birnessite with enhanced electrochemical performance as supercapacitor electrodes

2020 ◽  
Vol 8 (7) ◽  
pp. 3746-3753 ◽  
Author(s):  
Lixue Jiang ◽  
Mengyang Dong ◽  
Yuhai Dou ◽  
Shan Chen ◽  
Porun Liu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Energy Storage ◽  
Electrochemical Performance ◽  
Manganese Oxides ◽  
Storage Capacity ◽  
Orthorhombic Phase ◽  
Electrochemical Energy Storage ◽  
Energy Storage Capacity ◽  
Enhanced Electrochemical Performance ◽  
Transformation Strategy

Birnessite δ-MnO2 has been successfully synthesized from orthorhombic γ-MnO2via a facile phase transformation strategy, exhibiting significantly enhanced electrochemical energy storage capacity as supercapacitor electrodes.

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