A New rGO‐Overcoated Sb2Se3 Nanorods Anode for Na+ Battery: In Situ X‐Ray Diffraction Study on a Live Sodiation/Desodiation Process

Ou, Xing; Yang, Chenghao; Xiong, Xunhui; Zheng, Fenghua; Pan, Qichang; Jin, Chao; Liu, Meilin; Huang, Kevin

doi:10.1002/adfm.201606242

Cited by 268 publications

(192 citation statements)

References 68 publications

(75 reference statements)

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“…However, they suffer from poor cyclic stability caused by the large volume change during the conversion and alloying reactions. To overcome this limitation, 1D nanostructured chalcogenide materials have been prepared, such as WS 2 nanowires, Sb 2 S 3 nanorods, Sb 2 Se 3 nanorods, Sb 2 Se 3 nanowires . Free‐standing membranes composed of ultralong Sb 2 Se 3 nanowires have been fabricated via a facile hydrothermal method by Mai and co‐workers .…”

Section: Advantages and Synthetic Routes Of 1d Nanostructured Materialsmentioning

confidence: 99%

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

Jin

Han

Wang

et al. 2017

Small

191

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Sodium-ion batteries (SIBs) have received extensive attention as ideal candidates for large-scale energy storage systems (ESSs) owing to the rich resources and low cost of sodium (Na). However, the larger size of Na and the less negative redox potential of Na /Na result in low energy densities, short cycling life, and the sluggish kinetics of SIBs. Therefore, it is necessary to develop appropriate Na storage electrode materials with the capability to host larger Na and fast ion diffusion kinetics. 1D materials such as nanofibers, nanotubes, nanorods, and nanowires, are generally considered to be high-capacity and stable electrode materials, due to their uniform structure, orientated electronic and ionic transport, and strong tolerance to stress change. Here, the synthesis of 1D nanomaterials and their applications in SIBs are reviewed. In addition, the prospects of 1D nanomaterials on energy conversion and storage as well as the development and application orientation of SIBs are presented.

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Section: Advantages and Synthetic Routes Of 1d Nanostructured Materialsmentioning

confidence: 99%

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

Jin

Han

Wang

et al. 2017

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191

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“…

of sodium. [14][15][16][17][18] Thus, development of viable room-temperature sodium-ion batteries is attracting increasing attention. [14][15][16][17][18] Thus, development of viable room-temperature sodium-ion batteries is attracting increasing attention.

…”

mentioning

confidence: 99%

Long Cycle Life, Low Self‐Discharge Sodium–Selenium Batteries with High Selenium Loading and Suppressed Polyselenide Shuttling

Wang

Jiang

Manthiram

2017

Advanced Energy Materials

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of sodium. [9,13] In addition, the electrode dynamics and thermodynamic knowledge accrued recently for LIBs could be employed to ensure rapid advances in SIBs. [14][15][16][17][18] Thus, development of viable room-temperature sodium-ion batteries is attracting increasing attention. [19][20][21][22][23][24] Recently, room-temperature (RT) sodium-sulfur (NaS) batteries, based on the conversion reaction chemistry, have triggered extensive research interest due to the high charge-storage capacity and the abundance of both sodium and sulfur. [25][26][27][28][29][30] However, the practical applications of RT NaS batteries are facing two major challenges: (i) sulfur has a low electronic conductivity (5 × 10 −30 S cm −1 at 25 °C), thus leading to sluggish electrochemical reaction processes and low utilization of the active sulfur in the electrode; (ii) severe "polysulfide shuttle effect," i.e., migration of dissolved polysulfide intermediate products through the porous separator between the cathode and the anode, which leads to rapid capacity fade during cycling. [31] Many approaches have been pursued to mitigate these issues, including employing modified separators, [30] porous carbon matrix, [26] etc. However, the intrinsic challenges of RT NaS batteries have been far from completely solved. Selenium is a chemical analogue of S [32,33] and is considered to be an alternative electrode materials for SIBs due to its much higher electronic conductivity (1 × 10 −3 S m −1 ) as indicated in Figure S1 in the Supporting Information, volumetric capacity (3253 A h L −1 ) comparable to that of S (3467 A h L −1 ), and stable function in the relatively low-cost carbonate-based electrolytes. [34][35][36] However, bulk Se particles still suffer from low active material utilization and Coulombic efficiency due to its electronically insulating properties and shuttling of high-order polyselenides. To circumvent these problems, the current efforts are mainly concentrated on improving the electrical conductivity and entrapping the active material within the cathode region, which include microporous/mesoporous carbon-selenium, [37][38][39] slit microporous carbon-selenium, [34] and flexible porous carbon nanofiberselenium. [40,41] With these approaches, the introduction of additional components (such as carbon black and binders) often lowers the energy density of NaSe batteries. Also, fabrication of these electrodes often involves complex multistep processes.In light of these pros and cons, we present herein a facile and scalable strategy to design carbon nanofiber (CNF)/selenium The use of selenium as a cathode in rechargeable sodium-selenium batteries is hampered by low Se loading, inferior electrode kinetics, and polyselenide shuttling between the cathode and anode. Here a high-performance sodiumselenium cell is presented by coupling a binder-free, self-interwoven carbon nanofiber-selenium cathode with a light-weight carbon-coated bifunctional separator. With this strategy, electrodes with a high Se mass loading (4.4 mg cm −2 ) rende...

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“…As the current density goes back to 0.1 A g −1 , the capacity completely recovers, suggesting the good tolerance of SbVO 4 /rGO to high rates. These results outperform many previous works (Figure d) . Figure e represents the voltage profiles of SbVO 4 /rGO obtained by galvanostatic intermittent titration technique (GITT), where the dotted lines show the quasi open circuit voltages (QOCVs).…”

Section: Resultsmentioning

confidence: 46%

Polyanions Enhance Conversion Reactions for Lithium/Sodium‐Ion Batteries: The Case of SbVO₄ Nanoparticles on Reduced Graphene Oxide

Pan

Zhang

et al. 2019

Small Methods

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Anode materials based on redox alloying/dealloying reactions are regarded as one of the promising electrodes in Li/Na‐ion batteries. However, the enormous volume change upon cycling induces the giant structure strain, particle pulverization and then capacity decay. Here, vanadates are proposed to mitigate this concern for alloy‐type anode materials, using SbVO4 as an example. As indicated by density function theory and in situ/ex situ techniques, VO43− enhances the conversion reaction between Sb3+ and Sb, buffers the structure change induced by alloying/dealloying reactions of Sb and exhibits the electrochemical activity to Li ions. These results make SbVO4 superior to Sb, Sb2O3 and SbPO4 in the electrochemical performances, which applies both to lithium‐ion batteries and to sodium‐ion batteries. Then, the structure design and carbon composite are achieved by depositing monodispersed SbVO4 nanocrystals on reduced graphene oxides via a simple solvothermal reaction. This composite shows a good cycling stability and a high rate capability, especially in sodium‐ion batteries (73.6% after 1500 cycles at 1 A g−1, or 252 mAh g−1 at 10 A g−1). These results open the door for other alloy‐type anode materials to improve the performances.

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A New rGO‐Overcoated Sb₂Se₃ Nanorods Anode for Na⁺ Battery: In Situ X‐Ray Diffraction Study on a Live Sodiation/Desodiation Process

Cited by 268 publications

References 68 publications

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

Long Cycle Life, Low Self‐Discharge Sodium–Selenium Batteries with High Selenium Loading and Suppressed Polyselenide Shuttling

Polyanions Enhance Conversion Reactions for Lithium/Sodium‐Ion Batteries: The Case of SbVO₄ Nanoparticles on Reduced Graphene Oxide

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A New rGO‐Overcoated Sb2Se3 Nanorods Anode for Na+ Battery: In Situ X‐Ray Diffraction Study on a Live Sodiation/Desodiation Process

Cited by 268 publications

References 68 publications

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

1D Nanomaterials: Design, Synthesis, and Applications in Sodium–Ion Batteries

Long Cycle Life, Low Self‐Discharge Sodium–Selenium Batteries with High Selenium Loading and Suppressed Polyselenide Shuttling

Polyanions Enhance Conversion Reactions for Lithium/Sodium‐Ion Batteries: The Case of SbVO4 Nanoparticles on Reduced Graphene Oxide

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A New rGO‐Overcoated Sb₂Se₃ Nanorods Anode for Na⁺ Battery: In Situ X‐Ray Diffraction Study on a Live Sodiation/Desodiation Process

Polyanions Enhance Conversion Reactions for Lithium/Sodium‐Ion Batteries: The Case of SbVO₄ Nanoparticles on Reduced Graphene Oxide