期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 6, 期 4, 页码 1574-1581出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta07762a
关键词
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资金
- Startup Funding of Distinguished Professorship of 1000 Talents Program [31370086963030]
- Taishan Scholar Program [11370085961006]
- Shandong Provincial Science and Technology Major Project [2015ZDZX11008, 2015GGE27286, 2016GGX104001]
- Fundamental Research Funds of Shandong University at Shandong University [2016JC005, 2015JC033]
Red phosphorus (P) has been regarded as an attractive anode material in a sodium-ion battery (SIB) due to its natural abundance and higher theoretical specific capacity. We developed a novel flexible P/carbon nanofibers@reduced graphene oxide (P/CFs@RGO) electrode for sodium-ion batteries through simple vapor-redistribution and electrospinning. In this multi-layer structured P/CFs@RGO electrode, the large volume changes of the red P layer during cycling can be easily buffered and the loss of P from carbon fibers is prevented. In addition, the electrodes have better electron transport. As the result, the as-prepared P/CFs@RGO electrode delivers a high capacity retention of 725.9 mA h g(-1) after 55 cycles at 50 mA g(-1) and a significant capacity of 406.6 mA h g(-1) even at large current densities of 1000 mA g(-1) after 180 cycles.
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