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Enhanced cycle stability of polypyrrole-derived nitrogen -doped carbon-coated tin oxide hollow nanofibers for lithium battery anodes

Title
Enhanced cycle stability of polypyrrole-derived nitrogen -doped carbon-coated tin oxide hollow nanofibers for lithium battery anodes
Authors
Pham-Cong, De[Pham-Cong, De]Park, JS[Park, Jung Soo]Kim, JH[Kim, Jae Hyun]Kim, J[Kim, Jinwoo]Braun, PV[Braun, Paul V.]Choi, JH[Choi, Jun Hee]Kim, SJ[Kim, Su Jae]Jeong, SY[Jeong, Se Young]Cho, CR[Cho, Chae Ryong]
DGIST Authors
Park, JS[Park, Jung Soo]; Kim, JH[Kim, Jae Hyun]
Issue Date
2017-01
Citation
Carbon, 111, 28-37
Type
Article
Article Type
Article
Keywords
AnodesComposite ArchitecturesDoping (Additives)Electric BatteriesElectrode MaterialElectrodesHigh-Performance Lithium-Ion BatteriesHollow NanofibersLithium-Ion BatteriesLithium AlloysLithium Battery AnodeLithium CompoundsNanofibersNitrogenNitrogen-Doped CarbonsNitrogen AtmospheresPolypyrrolesReversible CapacityTin Oxides
ISSN
0008-6223
Abstract
SnO2 hollow nanofibers (SnO2 hNFs) are prepared through electrospinning and annealing processes. The polypyrrole layers coated onto the surface of the SnO2 hNFs are annealed in a nitrogen atmosphere. The nitrogen-doped carbon-coated SnO2 hNFs (SnO2/NC hNFs) are composed of SnO2 hNFs with a wall thickness of 60–80 nm and a nitrogen-doped carbon layer ∼10 nm thick. The nitrogen content in the carbon layer is approximately 7.95%. Owing to the nitrogen-doped carbon shell layers, the specific reversible capacity of SnO2/NC hNFs at a current density of 0.2 A g−1 after 100 cycles is 1648 mAh g−1, which is 427% higher than that of (386  mAh g−1) SnO2 hNFs. This strategy may open new avenues for the design of other composite architectures as electrode materials in order to achieve high-performance lithium ion batteries. © 2016 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/2061
DOI
10.1016/j.carbon.2016.09.057
Publisher
Elsevier Ltd
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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