Integrated and Three-Dimensional Network Structure of a SiNWs/CNTs@MOFs Composite to Enhance the Silicon Anode’s Electrochemical Performance in Lithium-Ion Batteries

2020 ◽  
Vol 3 (4) ◽  
pp. 3815-3825 ◽  
Author(s):  
Zhiqiang Gu ◽  
Yu Miao ◽  
Wenli Li ◽  
Yuxi Chen ◽  
Xiaohong Xia ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Network Structure ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Dimensional Network

Three-dimensional porous nickel supported Sn–O–C composite thin film as anode material for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31275-31281 ◽  
Author(s):  
Xin Qian ◽  
Tao Hang ◽  
Guang Ran ◽  
Ming Li
Keyword(s):  
Thin Film ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Composite Thin Film ◽  
Organic Electrolyte ◽  
Porous Nickel

A 3D porous Ni/Sn–O–C composite thin film anode is electrodeposited from organic electrolyte containing LiPF6 and exhibits satisfactory electrochemical performance.

Research Progress and Application of Modified Silicon-Based Anode Materials for Lithium-Ion Batteries

2021 ◽  
Vol 1036 ◽  
pp. 35-44
Author(s):  
Ling Fang Ruan ◽  
Jia Wei Wang ◽  
Shao Ming Ying
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Volume Expansion ◽  
Anode Materials ◽  
Active Material ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Research Progress ◽  
Ion Intercalation ◽  
Silicon Based

Silicon-based anode materials have been widely discussed by researchers because of its high theoretical capacity, abundant resources and low working voltage platform,which has been considered to be the most promising anode materials for lithium-ion batteries. However,there are some problems existing in the silicon-based anode materials greatly limit its wide application: during the process of charge/discharge, the materials are prone to about 300% volume expansion, which will resultin huge stress-strain and crushing or collapse on the anods; in the process of lithium removal, there is some reaction between active material and current collector, which creat an increase in the thickness of the solid phase electrolytic layer(SEI film); during charging and discharging, with the increase of cycle times, cracks will appear on the surface of silicon-based anode materials, which will cause the batteries life to decline. In order to solve these problems, firstly, we summarize the design of porous structure of nanometer sized silicon-based materials and focus on the construction of three-dimensional structural silicon-based materials, which using natural biomass, nanoporous carbon and metal organic framework as structural template. The three-dimensional structure not only increases the channel of lithium-ion intercalation and the rate of ion intercalation, but also makes the structure more stable than one-dimensional or two-dimensional. Secondly, the Si/C composite, SiOx composite and alloying treatment can improve the volume expansion effection, increase the rate of lithium-ion deblocking and optimize the electrochemical performance of the material. The composite materials are usually coated with elastic conductive materials on the surface to reduce the stress, increase the conductivity and improve the electrochemical performance. Finally, the future research direction of silicon-based anode materials is prospected.

Three-dimensional porous microspheres comprising hollow Fe2O3 nanorods/CNT building blocks with superior electrochemical performance for lithium ion batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (23) ◽  
pp. 11150-11157 ◽  
Author(s):  
Seung-Keun Park ◽  
Gi Dae Park ◽  
Yun Chan Kang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Building Blocks ◽  
Porous Microspheres ◽  
Novel Strategy

Three-dimensional hollow Fe2O3 nanorod/CNT microspheres for lithium ion batteries were successfully prepared by a novel strategy.

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