Spatially controlled synthesis of superlattice-like SnS/nitrogen-doped graphene hybrid nanobelts as high-rate and durable anode materials for sodium-ion batteries

2019 ◽  
Vol 7 (48) ◽  
pp. 27475-27483 ◽  
Author(s):  
Lei Wang ◽  
Xiaofang Li ◽  
Zhenzhen Jin ◽  
Zhun Liang ◽  
Xiang Peng ◽  
...  

Superlattice-like SnS/NG anode material prepared via spatially confined carbonization and phase-transformation exhibits excellent durability, high rate capability and large capacity.

2019 ◽  
Vol 7 (20) ◽  
pp. 12751-12762 ◽  
Author(s):  
Dezhi Kong ◽  
Ye Wang ◽  
Shaozhuan Huang ◽  
Yew Von Lim ◽  
Jun Zhang ◽  
...  

Highly ordered Na2Ti3O7@N-GQD nanofiber arrays on carbon textiles (CTs) exhibit high flexibility, excellent cycling stability, and high energy/power densities.


2019 ◽  
Vol 2 (3) ◽  
pp. 1457-1465 ◽  
Author(s):  
Yucheng Dong ◽  
Mingjun Hu ◽  
Zhenyu Zhang ◽  
Juan Antonio Zapien ◽  
Xin Wang ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 782 ◽  
Author(s):  
Qianqian Wang ◽  
Yujie Ma ◽  
Li Liu ◽  
Shuyue Yao ◽  
Wenjie Wu ◽  
...  

Low electrical conductivity severely limits the application of Fe2O3 in lithium- and sodium-ion batteries. In respect of this, we design and fabricate Fe2O3/Fe3O4 nano-aggregates anchored on nitrogen-doped graphene as an anode for sodium-ion batteries with the assistance of microwave plasma. The highly conductive Fe3O4 in the composite can function as a highway of electron transport, and the voids and phase boundaries in the Fe2O3/Fe3O4 heterostructure facilitate Na+ ion diffusion into the nano-aggregates. Furthermore, the Fe–O–C bonds between the nano-aggregates and graphene not only stabilize the structural integrity, but also enhance the charge transfer. Consequently, the Fe2O3/Fe3O4/NG anode exhibits specific capacity up to 362 mAh g−1 at 100 mA g−1, excellent rate capability, and stable long-term cycling performance. This multi-component-based heterostructure design can be used in anode materials for lithium- and sodium-ion batteries, and potential opens a new path for energy storage electrodes.


2021 ◽  
Author(s):  
Ni Wen ◽  
Siyuan Chen ◽  
Jingjie Feng ◽  
Ke Zhang ◽  
Zhiyong Zhou ◽  
...  

The double-carbon confined CGH@C/rGO composite is designed via a facile in situ hydrothermal strategy. When used as an anode for sodium-ion batteries, it exhibits superior reversible capacities, high rate capability, and stable cycling performance.


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