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Ni2P nanoparticle-incorporated reduced graphene oxide & carbon nanotubes to form flexible free-standing intertwining network film anodes for long-life sodium-ion storage.
- Source :
- Journal of Materials Science; Oct2020, Vol. 55 Issue 29, p14491-14500, 10p, 2 Color Photographs, 2 Black and White Photographs, 1 Diagram, 3 Graphs
- Publication Year :
- 2020
-
Abstract
- In this paper, Ni<subscript>2</subscript>P nanoparticles is incorporated onto the graphene & carbon nanotubes composite (Ni<subscript>2</subscript>P NPs/rGO & CNTs) to form flexible free-standing intertwining network film anodes for improving the cycle-life of sodium-ion batteries (SIBs). Benefited from the volume accommodation by this Ni<subscript>2</subscript>P NPs/rGO & CNTs structure and its excellent electronic conductive network along with high mechanical strength, such an anode-based SIB shows a superior capacity retention with a stable and long cycle-life at high current densities. For Ni<subscript>2</subscript>P NPs/rGO & CNTs electrode, it remains a capacity of 224 mAh g<superscript>−1</superscript> after 100 cycles, at a high current density of 0.5 A g<superscript>−1</superscript>, the Ni<subscript>2</subscript>P NPs/rGO & CNTs can still maintain a stable reversible capacity of ~ 150 mAh g<superscript>−1</superscript> after 500 cycles, after cycling at a rate as high as 1 A g<superscript>−1</superscript>, the reversible capacity of the Ni<subscript>2</subscript>P NPs/rGO/CNT can still sustain stable capacities at 91 mAh g<superscript>−1</superscript> after 2000 cycles, respectively. Even at 5 A g<superscript>−1</superscript>, it still exhibits a high rate capacity of 65 mAh g<superscript>−1</superscript>, thus exhibiting an excellent sodium storage kinetics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 55
- Issue :
- 29
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 144709476
- Full Text :
- https://doi.org/10.1007/s10853-020-05064-w