scholarly journals Fabrication of Sandwich­-structured Si Nanoparticles-Graphene Nanocomposites for High-performance Lithium-ion Batteries

2015 ◽  
Vol 169 ◽  
pp. 409-415 ◽  
Author(s):  
Dafang He ◽  
Fengjuan Bai ◽  
Lixian Li ◽  
Liming Shen ◽  
Harold H. Kung ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Graphene Nanocomposites ◽  
Si Nanoparticles

Silicon nanoparticles embedded in a porous carbon matrix as a high-performance anode for lithium-ion batteries

2016 ◽  
Vol 4 (29) ◽  
pp. 11381-11387 ◽  
Author(s):  
Lili Wu ◽  
Juan Yang ◽  
Xiangyang Zhou ◽  
Manfang Zhang ◽  
Yongpeng Ren ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
High Performance ◽  
Silicon Nanoparticles ◽  
Reduction Process ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Magnesiothermic Reduction ◽  
Carbonization Process ◽  
Si Nanoparticles

Si nanoparticles embedded in a carbon matrix have been prepared by a carbonization process followed by a magnesiothermic reduction process.

scholarly journals Synthesis and Characterization of Silicon Nanoparticles Inserted into Graphene Sheets as High Performance Anode Material for Lithium Ion Batteries

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yong Chen ◽  
Xuejun Zhang ◽  
Yanhong Tian ◽  
Xi Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Thermal Reduction ◽  
High Rate ◽  
Graphene Sheets ◽  
Si Nanoparticles

Silicon nanoparticles have been successfully inserted into graphene sheets via a novel method combining freeze-drying and thermal reduction. The structure, electrochemical performance, and cycling stability of this anode material were characterized by SEM, X-ray diffraction (XRD), charge/discharge cycling, and cyclic voltammetry (CV). CV showed that the Si/graphene nanocomposite exhibits remarkably enhanced cycling performance and rate performance compared with bare Si nanoparticles for lithium ion batteries. XRD and SEM showed that silicon nanoparticles inserted into graphene sheets were homogeneous and had better layered structure than the bare silicon nanoparticles. Graphene sheets improved high rate discharge capacity and long cycle-life performance. The initial capacity of the Si nanoparticles/graphene keeps above 850 mAhg−1after 100 cycles at a rate of 100 mAg−1. The excellent cycle performances are caused by the good structure of the composites, which ensured uniform electronic conducting sheet and intensified the cohesion force of binder and collector, respectively.

Solvothermal synthesis of V2O5/graphene nanocomposites for high performance lithium ion batteries

2014 ◽  
Vol 185 ◽  
pp. 7-12 ◽  
Author(s):  
Da Chen ◽  
Ran Yi ◽  
Shuru Chen ◽  
Terrence Xu ◽  
Mikhail L. Gordin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Solvothermal Synthesis ◽  
High Performance ◽  
Lithium Ion ◽  
Graphene Nanocomposites

scholarly journals Hollow double-layer carbon nanocage confined Si nanoparticles for high performance lithium-ion batteries

2020 ◽  
Vol 2 (8) ◽  
pp. 3222-3230
Author(s):  
Jijun Lu ◽  
Dong Wang ◽  
Junhao Liu ◽  
Guoyu Qian ◽  
Yanan Chen ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Double Layer ◽  
High Performance ◽  
Lithium Ion ◽  
Solid Electrolyte Interface ◽  
Practical Application ◽  
Si Nanoparticles ◽  
Carbon Nanocage

The huge volume variation and the unstable solid electrolyte interface (SEI) of silicon (Si) during the lithiation and delithiation process severely obstruct its practical application as lithium-ion battery anodes.

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