Journal
JOURNAL OF POWER SOURCES
Volume 364, Issue -, Pages 359-366Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.08.053
Keywords
Lithium-ion batteries; Ferrous carbonate; Reduced graphene oxide; Anode materials; Nanocomposites
Funding
- Guangdong Science and Technology Planning Project [2015A020209147, 2016A050502048]
- Guangzhou Science and Technology Planning Project [201704030022]
- National Natural Science Foundation of China [51003034, 51602109, 21571066]
- Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province [20160102]
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The development of advanced 1D/2D hierarchical nanocomposites for high-performance lithium-ion batteries is important and promising. Herein, monodispersed FeCO3 nanorods anchored on reduced graphene oxide (RGO) are prepared via a facile and efficient one-pot hydrothermal synthesis. The influence of RGO content on the morphology and electrochemical performances of the mesoporous FeCO3/reduced graphene oxide (FeCO3/RGO) composites are systematically studied. Optimized FeCO3/RGO composite shows good cycling stability. It delivers an initial discharge capacity of 1449 mAh. g(-1) at the current density of 200 mA g(-1) and maintained a capacity of 789 mAh-g(-1) after 80 cycles. A moderate amount of RGO sheets can not only provide more conductive channels to improve the electrode conductivity, but also effectively buffer the large volume variation of FeCO3 during continuous charge/discharge process. The combination of FeCO3 nanorods with RGOs synergistically contribute to enhanced capacity and durability of the composite anode. It demonstrates that RGO anchored-FeCO3 nanorods should be an attractive candidate as anode material for high-performance lithium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.
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