Cobalt-Free Nickel-Rich Positive Electrode Materials with a Core–Shell Structure

2019 ◽  
Vol 31 (24) ◽  
pp. 10150-10160 ◽  
Author(s):  
Ning Zhang ◽  
Nafiseh Zaker ◽  
Hongyang Li ◽  
Aaron Liu ◽  
Julie Inglis ◽  
...  
Keyword(s):  
Shell Structure ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Core Shell ◽  
Core Shell Structure ◽  
Positive Electrode Materials

Synthesis and Electrochemical Performance of Porous Carbon/Carbon Electrode with Core/Shell Structure

2010 ◽  
Vol 123-125 ◽  
pp. 1099-1102
Author(s):  
Ki Seok Kim ◽  
Soo Jin Park
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Shell Structure ◽  
Electrode Materials ◽  
In Situ Polymerization ◽  
High Surface ◽  
Hollow Structure ◽  
Core Shell ◽  
Carbon Electrode ◽  
Core Shell Structure

Recently core/shell nanostructures including nanotubes, nanowires, and nanofibers have a considerable attension because multiple or enhanced functionality can be obtained by the synergistic effect of different materials in the formation of a core/shell structure. In this work, porous carbon/carbon core/shell carbon electrode (P-C/C-CE) composed of core graphene and disordered shells were prepared to obtain a new type of carbon electrode materials. The disordered carbon shells were prepared by coating of polyaniline onto the graphene by in-situ polymerization in the presence of nano-sized silica and subsequent carbonization at 850°C. After carbonization, P-C/C-CE showed the hollow structure and crystallinity. In addition, P-C/C-CE exhibited superior electrochemical performance compared to graphene and graphene/PANI composites, which was attributed to the high surface area of P-C/C-CE and the presence of nitrogen groups formed onto carbon electrode after the carbonization of shell polyaniline.

Nano-sized Co/Co(OH)2 core-shell structure synthesized in molten salt as electrode materials for supercapacitors

Ionics ◽  
2016 ◽  
Vol 23 (3) ◽  
pp. 725-730 ◽  
Author(s):  
Xingpu Wang ◽  
Ruoyu Xu ◽  
Rongfang Wang ◽  
Hui Wang ◽  
Dan J. L. Brett ◽  
...  
Keyword(s):  
Molten Salt ◽  
Shell Structure ◽  
Electrode Materials ◽  
Core Shell ◽  
Core Shell Structure

Highly conductive Ni(OH)2 nano-sheets wrapped CuCo2S4 nano-tube electrode with a core-shell structure toward high performance supercapacitor

2021 ◽  
Author(s):  
Yinan Yuan ◽  
Henan Jia ◽  
Zhaoyuan Liu ◽  
Lidong Wang ◽  
J. Sheng ◽  
...  
Keyword(s):  
Electrode Material ◽  
Shell Structure ◽  
High Performance ◽  
Electrode Materials ◽  
Core Shell ◽  
Electrochemical Performances ◽  
Tube Electrode ◽  
Optimum Selection ◽  
Core Shell Structure ◽  
Selection Of

The design of microstructures and the optimum selection of electrode materials have substantial effects on the electrochemical performances for supercapacitors. A core-shell structured CuCo2S4@Ni(OH)2 electrode material was designed, in which...

Ultrathin NiCo2S4@graphene with a core–shell structure as a high performance positive electrode for hybrid supercapacitors

2018 ◽  
Vol 6 (14) ◽  
pp. 5856-5861 ◽  
Author(s):  
Feng Yu ◽  
Zheng Chang ◽  
Xinhai Yuan ◽  
Faxing Wang ◽  
Yusong Zhu ◽  
...  
Keyword(s):  
Shell Structure ◽  
High Performance ◽  
Graphene Layer ◽  
Positive Electrode ◽  
Core Shell ◽  
Hybrid Supercapacitors ◽  
Graphene Composite ◽  
Core Shell Structure

Herein we demonstrate a facile method for the synthesis of a NiCo2S4/graphene composite where NiCo2S4 is encapsulated with an ultrathin graphene layer to form a core/shell structure (NiCo2S4@G).

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