Building highly stable and industrial NaVPO<sub>4</sub>F/C as bipolar electrodes for high-rate symmetric rechargeable sodium-ion full batteries

Chen, Chengcheng; Li, Tianjiao; Tian, Han; Zou, Yabing; Sun, Jianchao

doi:10.1039/c9ta05396d

Cited by 43 publications

(14 citation statements)

References 43 publications

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“…As shown in Figure 2A, there are six elements of Na, V, P, O, F, and C in the XPS full spectra of NVPF/C/rGO. From the highresolution XPS spectra of V 2p (Figure 2B), the peaks at about 516.8 and 523.7 eV represent the electrons in V 2p3/2 and V 2p1/2, respectively, which are characteristic of V 3+ species and consistent well with the previous report (Zhang et al, 2018;Chen et al, 2019 spectrum of Na 1s and P 2p, indicating that exists Na and P elements in material. The high-resolution XPS spectra of O 1s, as shown in Figure 2E, the peaks at about 533.26 and 531.86 eV are assigned to C-O and P-O bonds (Gu et al, 2020).…”

Section: Resultssupporting

confidence: 89%

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

et al. 2020

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The fluorophosphate NaVPO 4 F (NVPF) is a good candidate of cathode material for sodium-ion batteries (SIBs) due to its high theoretical specific capacity, high working voltage and stable structure. However, due to the low electronic conductivity of NVPF, its electrochemical properties are difficult to demonstrate. In order to address the insufficient and then enhance its electrochemical performance, a 3D carbon networks constructed NaVPO 4 F/C/rGO (NVPF/C/rGO) nanocomposite is prepared by freeze-drying assisted high-temperature solid-state method. When used as a cathode material for SIBs, the prepared NVPF/C/rGO can deliver a capacity of about 108.7 mA h g −1 at 0.05 C. Moreover, NVPF/C/rGO nanocomposite also exhibits the excellent electrochemical performance, including superior rate capacities (about 65.8 mA h g −1 specific capacity at 10 C) and outstanding cycling performance (∼ 95.1% capacity retention after 200 cycles at 0.05 C), which can be attribute to the 3D carbon networks and the nanoparticles in NVPF/C/rGO nanocomposite. The preliminary results illustrate that the 3D carbon networks constructed NVPF/C/rGO could be a promising cathode material for SIBs.

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Section: Resultssupporting

confidence: 89%

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

et al. 2020

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“…Many types of materials have therefore been developed for Na-ion batteries, including materials for anode [6][7][8][9][10][11][12] and for cathodes. The cathode materials for Na-ion batteries include materials with various symmetries, such as R3m rhombohedral symmetry: Na x MnO 2 , [13][14][15][16][17] Na x Ni x Co 1 − x O 2 , [18,19] Na x Ni 0.5 Mn 0.5 O 2 , [20][21][22] Na 0.8 Ni 0.6 Sb 0.4 O 2 , [23] NaNi x Co y Fe z O 2 ; [24,25] P6 3 /mmc hexagonal symmetry: Na x CoO 2 , [26][27][28][29][30][31] Na 0.6 MnO 2 , [32] Na 0.67 Mn 0.5 Fe 0.5 O 2 , [33,34] Na 2/3 Ni 1/3 Mn 2/3 O 2 ; [35][36][37][38][39] I4/mmm tetragonal symmetry: NaVPO 4 F; [40][41][42][43][44][45] P4 2 /mnm tetragonal symmetry: Na 3 V 2 (PO 4 ) 2 F 3 ; [46][47][48] Pmnb orthorhombic symmetry: NaFePO 4 ; [49] and R3c rhombohedral symmetry Na 3 V 2 (PO 4 ) 3 . [50]…”

Section: Introductionmentioning

confidence: 99%

Polyanion Sodium Vanadium Phosphate for Next Generation of Sodium‐Ion Batteries—A Review

Chen

Huang

et al. 2020

Adv Funct Materials

116

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Polyanion‐type sodium (Na) vanadium phosphate in the form of Na3V2(PO4)3 has demonstrated reasonably high capacity, good rate capability, and excellent cyclability. Two of three Na ions per formula can be deintercalated at a potential 3.4 V versus Na+/Na with oxidation of V3+/4+. In the reversible process, two Na ions intercalate back resulting in a discharge capacity of 117.6 mAh g−1. Further intercalation is possible but at a low potential of 1.4 V versus Na+/Na accompanied by vanadium reduction V3+/2+, leading to a capacity of 60 mAh g−1. Due to its marvelous electrochemical performance, it has attracted a lot of attention since its discovery in the 1990s. To develop truly useable polyanion‐type vanadium phosphate, better understanding of its crystal configuration, sodium ions' transportation, and electronic structure is essential. Therefore, this review only focuses on the inside of crystal configuration and electronic structure of polyanion‐type vanadium phosphate, Na3V2(PO4)3, since there are a few good reviews on various processing technologies.

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“…3,4 In these respects, rechargeable aqueous batteries are considered as a potential solution for cost-effective electric energy storage alternatives due to their high safety. 5,6 Aqueous rechargeable zinc ion batteries (AZIBs) have been attracting increasing interest owing to low-cost zinc resources, high volumetric energy density, and good stability in neutral electrolyte. 7,8 Based on their advantages, efforts have been devoted to exploring highperformance AZIBs.…”

Section: Introductionmentioning

confidence: 99%

Porous Attapulgite Interfaces with Nanochannels That Enable Dendrite-Free Aqueous Zinc Ion Batteries

Lin

Wang

et al. 2021

ACS Appl. Nano Mater.

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Aqueous zinc ion batteries (AZIBs) are promising for energy storage due to their high specific capacity and high safety. Unfortunately, uneven Zn dendrite growth and corrosion limit their further application. Herein, we demonstrate a costeffective porous attapulgite nanorod protective layer to endow Zn anodes with dendrite-free Zn stripping/plating. The porous attapulgite coating serves as an artificial protective layer, which not only provides multiple nanochannels to homogenize the Zn 2+ flux for uniform Zn stripping/plating but also improves the hydrophilicity favoring electrolyte infiltration and fast Zn 2+ transport. In consequence, the ATP-Zn anode displays significantly reduced charge transfer resistance. Symmetric cells based on the ATP-Zn anode exhibit long cycling stability of 1600 h with a small voltage hysteresis of 40 mV at 0.25 mA cm −2 , much better than that of the bare Zn anode. The ATP-Zn anode also displays a high Coulombic efficiency of 98% and a lower nucleation overpotential in half-cells. When compared with the typical β-MnO 2 cathode, the ATP-Zn//MnO 2 cell exhibits good cyclic stability. The reversible capacity of the ATP-Zn//MnO 2 cell is 210 mAh g −1 after 300 cycles at 1C, while the capacity of the Zn//MnO 2 cell is only 107 mAh g −1 . This work provides an eco-friendly and facile strategy to upgrade the electrochemical stability of AZIBs.

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Building highly stable and industrial NaVPO₄F/C as bipolar electrodes for high-rate symmetric rechargeable sodium-ion full batteries

Abstract: We report the synthesis of carbon coated NaVPO4F (NaVPO4F/C) via industrial high-temperature calcination and its application as bipolar electrodes to build symmetric sodium ion full batteries (SIFBs).

Cited by 43 publications

References 43 publications

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

Polyanion Sodium Vanadium Phosphate for Next Generation of Sodium‐Ion Batteries—A Review

Porous Attapulgite Interfaces with Nanochannels That Enable Dendrite-Free Aqueous Zinc Ion Batteries

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Building highly stable and industrial NaVPO4F/C as bipolar electrodes for high-rate symmetric rechargeable sodium-ion full batteries

Abstract: We report the synthesis of carbon coated NaVPO4F (NaVPO4F/C) via industrial high-temperature calcination and its application as bipolar electrodes to build symmetric sodium ion full batteries (SIFBs).

Cited by 43 publications

References 43 publications

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

3D Carbon Networks Constructed NaVPO4F/C/rGO as a Cathode Material for High-Performance Sodium-Ion Batteries

Polyanion Sodium Vanadium Phosphate for Next Generation of Sodium‐Ion Batteries—A Review

Porous Attapulgite Interfaces with Nanochannels That Enable Dendrite-Free Aqueous Zinc Ion Batteries

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Building highly stable and industrial NaVPO₄F/C as bipolar electrodes for high-rate symmetric rechargeable sodium-ion full batteries