A highly stable (SnO x -Sn)@few layered graphene composite anode of sodium-ion batteries synthesized by oxygen plasma assisted milling

Cheng, Deliang; Liu, Jiangwen; Li, Xiang; Zeng, Meiqin; Yang, Lichun; Zhu, Min

doi:10.1016/j.jpowsour.2017.03.043

Cited by 80 publications

(45 citation statements)

References 47 publications

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“…Two weak shoulders at 485.2 and 493.7 eV can be decomposed from the main peaks through Gaussian fitting, corresponding to Sn 3d 5/2 and Sn 3d 3/2 , respectively. [14,36] They verify the presence of Sn in the SnO 2 @Sn/NGA, which is consistent with the HRTEM and the XRD results.…”

Section: Resultssupporting

confidence: 84%

“…[42,43] Less oxygen containing functional groups in SnO 2 @Sn/NGA, can improve the reversible specific capacity, as well as the stable cyclic performance. [14] Figure 5a compares the rate performances of SnO 2 @Sn/ NGA, SnO 2 /NGA and SnO 2 /GA. The SnO 2 @Sn/NGA delivered the discharge capacity is 448.5 mAh g À 1 at 100 mA g À 1 , approximately 35.7 % of which was retained (160 mAh g À 1 ) when the current density was progressively increased to 2000 mA g À 1 .…”

Section: Resultsmentioning

confidence: 99%

“…Na 2 O formed by the conversion reaction can prevent agglomeration and accommodate the associated volume expansion. [13][14][15][16][17][18][19] However, the formation of Na 2 O consumes Na + ions in the electrolyte thus leading to the large irreversible capacity loss and low initial coulombic efficiency (CE) [Eqs. (1) and (2)].…”

Section: Introductionmentioning

confidence: 99%

“…[15] In a (SnO x À Sn)@fewlayered graphene composite anode of SIBs, the Na 2 O prevented agglomeration and relieved the volume expansion of Sn during the sodiation process. [14] Another potential function of Na 2 O is to make the conversion reaction Eq. (1) reversible, which is possible under the close contact between Na 2 O and Sn and the presence of excessive Sn, thereby increasing the CE and reversible capacity.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Wang

Liu

et al. 2020

ChemElectroChem

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SnO2‐based sodium‐ion batteries usually suffer from rapid capacity fading during the sodiation/desodiation caused by aggregation and cracking of Sn and irreversible formation of Na2O. In this respect, we design a ternary SnO2@Sn core‐shell structure decorated on a nitrogen‐doped graphene aerogel (SnO2@Sn/NGA), which is fabricated by using a microwave plasma‐based process. The converted Na2O can prevent agglomeration of Sn, thus stabilizing the structure during the cycles. Close contact between Na2O and Sn ensures Na+ ion diffusion to the Sn core and reversible conversion of Sn↔ SnO2. Moreover, the deoxygenation effect of the plasma on NGA improves its degree of graphitization and electrical conductivity, which substantially improves the electrode rate performance. As a result, the SnO2@Sn/NGA anode delivers a high initial discharge capacity of 448.5 mAh g−1 at 100 mA g−1. Importantly, this unique nanohybrid electrode design can be extended to advanced anode materials for both lithium‐ and sodium‐ion batteries.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Wang

Liu

et al. 2020

ChemElectroChem

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“…The peak at 531 eV can be assigned to SnÀOa nd/or C= Ob onds, and that at 533.3 eV can be ascribed to CÀOH and/or CÀOÀCb onds. The peak located at 532.0 eV may originate from the formation of SnÀOÀCb onds, [46,47] indicating the anchoring mode of SnO 2 on the RGOn anosheets. Such an SnÀ OÀCb ond between SnO 2 and RGO is further corroborated by the C1 ss pectra ( Figure S1) and the Fourier-transform infrared (FTIR) spectra.A si ndicated in Figure 2i,t he characteristic bands detected at 575 and 656 cm À1 correspond to SnÀOÀH and SnÀOÀSn vibrations of SnO 2 ,r espectively.…”

Section: Cathodementioning

confidence: 99%

Asymmetric All‐Metal‐Oxide Supercapacitor with Superb Cycle Performance

Yang

Sun

2018

Chemistry A European J

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Metal oxides have great potential for developing high-performance supercapacitors due to their high specific capacitances. However, achieving high energy densities while maintaining good rate capability and long cycle life has proved to be challenging. We propose herein a strategy for constructing all-metal-oxide asymmetric supercapacitors (ASCs), in which both the cathode and anode are based on metal oxides, and demonstrate their outstanding electrochemical performance. We anchored SnO nanoparticles on the surface of reduced graphene oxide (RGO) through Sn-O-C bonds (as the cathode of ACSs), and employed low-crystalline RGO/MoO nanosheets as the anode, based on the large work function difference between SnO and MoO . The resulting ASC can operate stably at 1.8 V in neutral aqueous electrolyte and deliver an energy density of up to 33 W h kg , which remains at 13.8 W h kg even at 37.5 kW kg . Moreover, the ASC exhibits a good cycling stability of 92.5 % capacitance retention after 20 000 cycles.

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Dual Functions of Potassium Antimony(III)‐Tartrate in Tuning Antimony/Carbon Composites for Long‐Life Na‐Ion Batteries

Zhang

Hou

et al. 2018

Adv Funct Materials

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Antimony holds a high-specific capacity as a promising anode material for Na-ion batteries (SIBs) and much research is focused on solving the poor cycling stability issue associated with its large volume expansion during alloying/dealloying processes. Here, self-thermal-reduction method is successfully applied to prepare antimony/carbon rods (Sb/C rods) utilizing potassium antimony(III)tartrate (C 8 H 10 O 15 Sb 2 K 2 ) as a dual source of carbon matrix and metallic antimony. According to theory calculations and experiment results, the formation process is explicitly explored as follows: C 8 H 10 O 15 Sb 2 K 2 → Sb 2 O 3 /C → Sb 2 O 3 / Sb/C → Sb/C rods. Notably, organic ligands in C 8 H 10 O 15 Sb 2 K 2 can be gradually turned into amorphous carbon with simultaneous reduction of Sb 3+ to metal Sb. Moreover, potassium chloride acts as an activator and a template during the course of carbonization, and synchronous reduction is introduced. Consequently, an antimony/carbon electrode material denoted as SbOC/C is formed, exhibiting a unique dual-carbon-modified structure and extensive SbOC bridge bonds that give rise to outstanding cycling performance and rate capacity. Specifically, the capacity is maintained at 404 mA h g −1 with 89% retention after 700 cycles at 500 mA g −1 . The low-cost, self-thermal-reduction method and excellent electrode performances of electrode material make it attractive for large-scale energy storage systems.

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A highly stable (SnO x -Sn)@few layered graphene composite anode of sodium-ion batteries synthesized by oxygen plasma assisted milling

Cited by 80 publications

References 47 publications

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Asymmetric All‐Metal‐Oxide Supercapacitor with Superb Cycle Performance

Dual Functions of Potassium Antimony(III)‐Tartrate in Tuning Antimony/Carbon Composites for Long‐Life Na‐Ion Batteries

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A highly stable (SnO x -Sn)@few layered graphene composite anode of sodium-ion batteries synthesized by oxygen plasma assisted milling

Cited by 80 publications

References 47 publications

Plasma‐Enabled Ternary SnO2@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Plasma‐Enabled Ternary SnO2@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Asymmetric All‐Metal‐Oxide Supercapacitor with Superb Cycle Performance

Dual Functions of Potassium Antimony(III)‐Tartrate in Tuning Antimony/Carbon Composites for Long‐Life Na‐Ion Batteries

Contact Info

Product

Resources

About

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries

Plasma‐Enabled Ternary SnO₂@Sn/Nitrogen‐Doped Graphene Aerogel Anode for Sodium‐Ion Batteries