Nitrogen-doped graphene enwrapped silicon nanoparticles with nitrogen-doped carbon shell: a novel nanocomposite for lithium-ion batteries

2016 ◽  
Vol 192 ◽  
pp. 22-29 ◽  
Author(s):  
Dehui Ji ◽  
Yizao Wan ◽  
Zhiwei Yang ◽  
Chunzhi Li ◽  
Guangyao Xiong ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Carbon Shell ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon coated SiO nanoparticles Co-modified with nitrogen-doped graphene as a superior anode material for lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (67) ◽  
pp. 35717-35725 ◽  
Author(s):  
Chenfeng Guo ◽  
Jingxuan Mao ◽  
Dianlong Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cyclic Life ◽  
Nitrogen Doped ◽  
Carbon Coated ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Nitrogen Doped Carbon

One great challenge in the development of lithium-ion batteries is to simultaneously achieve superior reversible specific capacity, cyclic life and rate capability.

A three-dimensional porous LiFePO4 cathode material modified with a nitrogen-doped graphene aerogel for high-power lithium ion batteries

2015 ◽  
Vol 8 (3) ◽  
pp. 869-875 ◽  
Author(s):  
Bo Wang ◽  
Wael Al Abdulla ◽  
Dianlong Wang ◽  
X. S. Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
High Power ◽  
Diffusion Length ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Graphene Aerogel ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Lifepo4 Cathode

LFP@N-GA with (010) facet oriented LFP NPs embedded in N-GA provides both rapid Li+ and electron pathways in the electrode as well as short Li+ diffusion length in LFP crystals.

High Reversible Capacity of Nitrogen-Doped Graphene as an Anode Material for Lithium-Ion Batteries

2014 ◽  
Vol 1070-1072 ◽  
pp. 459-464
Author(s):  
Chang Jing Fu ◽  
Shuang Li ◽  
Qian Wang
Keyword(s):  
Graphene Oxide ◽  
Electron Microscope ◽  
Lithium Ion Batteries ◽  
Current Density ◽  
Lithium Ion ◽  
X Ray ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
A Current

Nitrogen-doped graphene (N-rGO) was synthesized in the process of preparation of reduced graphene oxide from the expanded graphite through the improved Hummers’ method. The morphology, structure and composition of nitrogen-doped graphene oxide (GO) and N-rGO were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The nitrogen content of N-rGO was approximately 5 at.%. The electrochemical performances of N-rGO as anode materials for lithium-ion batteries were evaluated in coin-type cells versus metallic lithium. Results showed that the obtained N-rGO exhibited a higher reversible specific capacity of 519 mAh g-1 at a current density of 100 mA⋅g-1 and 207.5 mAh⋅g-1 at a current density of 2000 mA⋅g-1. The excellent cycling stability and high-rate capability of N-rGO as anodes of lithium-ion battery were attributed to the large number of surface defects caused by the nitrogen doping, which facilitates the fast transport of Li-ion and electron on the interface of electrolyte/electrode.

Sign in / Sign up

Export Citation Format

Share Document