Yolk-shelled Sb@C nanoconfined nitrogen/sulfur co-doped 3D porous carbon microspheres for sodium-ion battery anode with ultralong high-rate cycling

Chen, Bochao; Qin, Hongye; Li, Kai; Zhang, Biao; Liu, Enzuo; Zhao, Naiqin; Shi, Chunsheng; He, Chunnian

doi:10.1016/j.nanoen.2019.104133

Cited by 66 publications

(37 citation statements)

References 49 publications

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“…[ 34,44,45 ] In addition, the decrease of overpotential causes Na‐Sb alloy reaction peaks shift to high voltage after the first cycle. [ 30 ] Evidently, the CV curves of Sb@Sb 2 O 3 @N‐3DCHs have the same characteristics as the other electrodes due to that the Sb and Sb 2 O 3 coexist in the Sb@Sb 2 O 3 @N‐3DCHs material. In particular, the CV curves of Sb 2 O 3 @N‐3DCHs electrode demonstrate the best overlap compared with the other electrodes after the first cycle.…”

Section: Resultsmentioning

confidence: 78%

“…In this work, Sb has been selected as a typical model for systematic electrochemical exploration, owing to its low cost, high theoretical capacity (660 mA h g −1 ), and suitable operating voltage. [ 27–30 ] Crucially, the oxide of Sb (Sb 2 O 3 ) not only acts as a protective shell and buffer layer for Sb that is similar to other metals (Al, Cu, Mo, etc. ), but also may provide high capacity for sodium/potassium‐ion storage.…”

Section: Introductionmentioning

confidence: 99%

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Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Chen

Yang

Bai

et al. 2021

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In this work, the core‐shelled Sb@Sb2O3 heterostructure encapsulated in 3D N‐doped carbon hollow‐spheres is fabricated by spray‐drying combined with heat treatment. The novel core‐shelled heterostructures of Sb@Sb2O3 possess a mass of heterointerfaces, which formed spontaneously at the core‐shell contact via annealing oxidation and can promote the rapid Na+/K+ transfer. The density functional theory calculations revealed the mechanism and significance of Na/K‐storage for the core‐shelled Sb@Sb2O3 heterostructure, which validated that the coupling between the high‐conductivity of Sb and the stability of Sb2O3 can relieve the shortcomings of the individual building blocks, thereby enhancing the Na/K‐storage capacity. Furthermore, the core‐shell structure embedded in the 3D carbon framework with robust structure can further increase the electrode mechanical strength and thus buffer the severe volume changes upon cycling. As a result, such composite architecture exhibited a high specific capacity of ≈573 mA h g−1 for sodium‐ion battery (SIB) anode and ≈474 mA h g−1 for potassium‐ion battery (PIB) anode at 100 mA g−1, and superior rate performance (302 mA h g−1 at 30 A g−1 for SIB anode, while 239 mA h g−1 at 5 A g−1 for PIB anode).

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Section: Resultsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Chen

Yang

Bai

et al. 2021

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“…To address these issues, many strategies have been proposed, such as designing new nanostructures (e.g., Sb nanotubes, [39] antimonene, [40,41] and nanoporous Sb [42][43][44] ), forming Sb-based intermetallics (e.g., SbSn, [45][46][47][48] SbNi, [49,50] and SbBi [51,52] ) and constructing protective layers (e.g., TiO 2 , [53][54][55] Co(OH) 2 , [56] and carbon [57][58][59][60][61][62][63][64][65][66][67][68][69] ). Among these approaches, constructing a protective layer has been regarded as the most effective way to solve the volume expansion problems.…”

Section: Introductionmentioning

confidence: 99%

“…[21,74] On the other hand, constructing a carbon protective layer can also effectively alleviate the volume expansion of Sb. Many carbon-shell-protected Sb-based materials (e.g., Sb@C yolk-shell spheres, [62][63][64] Sb nanorods/nanoparticles encapsulated in carbon NTs/ nanofibers, [65][66][67][68] and Sb@C coaxial nanotubes [69] ) have been developed, which exhibited much better electrochemical performance than pure Sb electrode. Nevertheless, the carbon shells of the above Sb-based materials are composed of amorphous carbon with low mechanical strength, which could crack under high Sb loading, [75] thus decreasing the structural stability of the composite materials.…”

Section: Introductionmentioning

confidence: 99%

Rational Design of Sb@C@TiO₂ Triple‐Shell Nanoboxes for High‐Performance Sodium‐Ion Batteries

Kong

Liu

Zhou

et al. 2020

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Antimony is an attractive anode material for sodium‐ion batteries (SIBs) owing to its high theoretical capacity and appropriate sodiation potential. However, its practical application is severely impeded by its poor cycling stability caused by dramatic volumetric variations during sodium uptake and release processes. Here, to circumvent this obstacle, Sb@C@TiO2 triple‐shell nanoboxes (TSNBs) are synthesized through a template‐engaged galvanic replacement approach. The TSNB structure consists of an inner Sb hollow nanobox protected by a conductive carbon middle shell and a TiO2‐nanosheet‐constructed outer shell. This structure offers dual protection to the inner Sb and enough room to accommodate volume expansion, thus promoting the structural integrity of the electrode and the formation of a stable solid–electrolyte interface film. Benefiting from the rational structural design and synergistic effects of Sb, carbon, and TiO2, the Sb@C@TiO2 electrode exhibits superior rate performance (212 mAh g−1 at 10 A g−1) and outstanding long‐term cycling stability (193 mAh g−1 at 1 A g−1 after 4000 cycles). Moreover, a full cell assembled with a configuration of Sb@C@TiO2//Na3(VOPO4)2F displays a high output voltage of 2.8 V and a high energy density of 179 Wh kg−1, revealing the great promise of Sb@C@TiO2 TSNBs as the electrode in SIBs.

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“…Anode is one of the most crucial components of building high-performance SIBs, which dominates the energy density and working voltage window of a battery. Recent years, a series of materials, including carbon materials [8][9][10][11][12], alloying materials [13][14][15][16][17][18], metal phosphides [19][20][21][22][23], metal oxides [24][25][26][27][28], metal sulfides [29][30][31][32][33] and metal selenides [34][35][36][37] have been researched as possible anodes for SIBs. Despite the excellent long-term cycling stability of carbonaceous materials, low reversible capacity limits their application in high-energy-density SIBs.…”

Section: Introductionmentioning

confidence: 99%

Progress and Prospects of Transition Metal Sulfides for Sodium Storage

Yao

et al. 2020

Adv. Fiber Mater.

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Sodium-ion battery (SIB), one of most promising battery technologies, offers an alternative low-cost solution for scalable energy storage. Developing advanced electrode materials with superior electrochemical performance is of great significance for SIBs. Transition metal sulfides that emerge as promising anode materials have advantageous features particularly for electrochemical redox reaction, including high theoretical capacity, good cycling stability, easily-controlled structure and modifiable chemical composition. In this review, recent progress of transition metal sulfides based materials for SIBs is summarized by discussing the materials properties, advanced design strategies, electrochemical reaction mechanism and their applications in sodium-ion full batteries. Moreover, we propose several promising strategies to overcome the challenges of transition metal sulfides for SIBs, paving the way to explore and construct advanced electrode materials for SIBs and other energy storage devices.

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Yolk-shelled Sb@C nanoconfined nitrogen/sulfur co-doped 3D porous carbon microspheres for sodium-ion battery anode with ultralong high-rate cycling

Cited by 66 publications

References 49 publications

Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Rational Design of Sb@C@TiO₂ Triple‐Shell Nanoboxes for High‐Performance Sodium‐Ion Batteries

Progress and Prospects of Transition Metal Sulfides for Sodium Storage

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Yolk-shelled Sb@C nanoconfined nitrogen/sulfur co-doped 3D porous carbon microspheres for sodium-ion battery anode with ultralong high-rate cycling

Cited by 66 publications

References 49 publications

Heterostructure Engineering of Core‐Shelled Sb@Sb2O3 Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Heterostructure Engineering of Core‐Shelled Sb@Sb2O3 Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Rational Design of Sb@C@TiO2 Triple‐Shell Nanoboxes for High‐Performance Sodium‐Ion Batteries

Progress and Prospects of Transition Metal Sulfides for Sodium Storage

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Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Heterostructure Engineering of Core‐Shelled Sb@Sb₂O₃ Encapsulated in 3D N‐Doped Carbon Hollow‐Spheres for Superior Sodium/Potassium Storage

Rational Design of Sb@C@TiO₂ Triple‐Shell Nanoboxes for High‐Performance Sodium‐Ion Batteries