N-doped graphene/Bi nanocomposite with excellent electrochemical properties for lithium–ion batteries

Zhang, Yan; Wang, Qian; Wang, Bo; Mei, Yi; Lian, Peichao

doi:10.1007/s11581-017-1975-3

Cited by 27 publications

(14 citation statements)

References 43 publications

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“…Nevertheless, the Bi@N−C48 electrode illustrates high capacity and outstanding cycling stability compare to the other samples under the same condition. For example, the Bi@N−C electrode still shows relatively high reversible capacities of 250 mA h g ‐1 at 1 A g ‐1 , which is much higher than the other four samples and those reported in literature , , . When the current rate is reset to 100 mA g ‐1 after 50 cycles, the discharge capacity of the the Bi@N−C48 rebounds to 390 mA h g ‐1 .…”

Section: Resultsmentioning

confidence: 57%

“…Thus, it is effective to combine N‐enriched Carbon with Bi nanostructure to enhance the electrochemical performance of the ande materials. For example, N‐doped graphene/Bi nanocomposite showed an enhanced rate capacity of 218 mA h g −1 at 1.0 A g −1 . Polydopamine (PDA), which is a nitrogen‐rich biomimetic polymer, has been widely studied for coating alloy and transition metal oxides.…”

Section: Introductionmentioning

confidence: 99%

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Bio‐Inspired Rose‐Like Bi@Nitrogen‐Enriched Carbon towards High‐Performance Lithium‐Ion Batteries

et al. 2017

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Rose‐like Bi@N‐doped carbon nanocomposite was fabricate by a facile hydrothermal method, followed by polydopamine coating for different time and subsequent carbonization for the first time. Structural and morphological characterization shows that Bi@N‐doped carbon nanocomposite have a homogeneous rose‐like structure, with crystallized Bi nanoparticles embedded homogeneously in the carbon matrix. The optimal Bi@N‐doped carbon nanocomposite used as anode for rechargeable lithium‐ion batteries (LIBs) presents a reversible capacity of 712 mAh g−1 for initial cycle at a current density of 200 mA g−1 and exhibits outstanding cyclability with a capacity of 535 mAh g−1 after 450 cycles at 200 mA g−1. The outstanding electrochemical performance of the Bi@N‐doped carbon nanocomposite can be ascribed to the synergetic effects of various factors including the unique rose‐like structure, nano‐sized Bi particles and nitrogen doping carbon matrices.

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Section: Resultsmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Bio‐Inspired Rose‐Like Bi@Nitrogen‐Enriched Carbon towards High‐Performance Lithium‐Ion Batteries

et al. 2017

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“…In regard to the Li-ion storage mechanism of metallic Bi, the detailed alloying reactions are unanimously considered as follows [48][49][50][51][52] Discharge:…”

Section: Li/na-ion Storage Mechanism Of Metallic Bimentioning

confidence: 99%

“…On one hand, the porous carbon [42] Copyright 2018, American Chemical Society. c) line plot and d) contour plot of the operando XRD results of the np-Bi 50 Ni 50 electrode during the discharge-chargedischarge processes; (c,d) Reproduced with permission. [69] Copyright 2019, The Royal Society of Chemistry.…”

Section: Metallic Bi and Its Compositesmentioning

confidence: 99%

“…Nitrogen doping not only improves the electrical conductivity but also increases the electrochemical activity of carbon. Based on the considerations above, Zhang et al [50] prepared N-doped graphene/Bi composites, in which Bi nanoparticles were closely anchored on the N-doped graphene sheets. It was worth noting that the nitrogen atom substitution for carbon atomic could induce numerous topological defects on graphene, providing more active sites for lithium ions binding.…”

Section: Metallic Bi and Its Compositesmentioning

confidence: 99%

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