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

Wang, Bo, Al Abdulla, Wael, Wang, Dianlong and Zhao, X. S. (2015) A three-dimensional porous LiFePO4 cathode material modified with a nitrogen-doped graphene aerogel for high-power lithium ion batteries. Energy and Environmental Science, 8 3: 869-875. doi:10.1039/c4ee03825h


Author Wang, Bo
Al Abdulla, Wael
Wang, Dianlong
Zhao, X. S.
Title A three-dimensional porous LiFePO4 cathode material modified with a nitrogen-doped graphene aerogel for high-power lithium ion batteries
Journal name Energy and Environmental Science   Check publisher's open access policy
ISSN 1754-5692
1754-5706
Publication date 2015-03-01
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c4ee03825h
Open Access Status Not Open Access
Volume 8
Issue 3
Start page 869
End page 875
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Formatted abstract
A composite cathode material consisting of (010) facet-oriented LiFePO4 nanoplatelets wrapped in a nitrogen-doped graphene aerogel is reported. Such a composite possesses a 3D porous structure with a BET surface area as high as 199.3 m2 g−1. In this composite, the nitrogen-doped graphene aerogel combined with its interconnected porous networks provides pathways for rapid electron transfer and ion transport, while the thin LFP nanoplatelets with large (010) surface area enhance the active sites and shorten the Li+ diffusion distances. As a result, a high rate capability (78 mA h g−1 at 100 C) as well as a long life cycling stability (89% capacity retention over 1000 cycles at 10 C) are achieved.
Keyword Chemistry, Multidisciplinary
Energy & Fuels
Engineering, Chemical
Environmental Sciences
Chemistry
Energy & Fuels
Engineering
Environmental Sciences & Ecology
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 20092302110052
FT100100897
Institutional Status UQ

 
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