Na2FeP2O7 as a positive electrode material for rechargeable aqueous sodium-ion batteries

Jung, Young Hwa; Lim, Chek Hai; Kim, Do Kyung

doi:10.1039/c3ra47560c

Cited by 91 publications

(73 citation statements)

References 23 publications

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“…Subsequently, another potential alternative, the aqueous sodium‐ion battery, was investigated. There are many materials as cathodes for an aqueous rechargeable sodium‐ion battery, such as Na 0.44 MnO 2 , NaTi 2 (PO 4 ) 3 , P2‐Na 2/3 Ni 1/3 Mn 2/3 O 2 , and Na 2 FeP 2 O 7 . Nevertheless, compared with the lithium ion, the larger radius of the sodium ion is the main reason for the poor electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

Zhang

Zhu

et al. 2017

Chemistry A European J

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Porous FeVO is prepared by hydrothermal method and further modified by coating with carbon to obtain FeVO /C with a hierarchical pore structure. FeVO /C is used as an anodic electrode in aqueous rechargeable magnesium-ion batteries. The FeVO /C material not only has improved electrical conductivity as a result of the carbon coating layer, but also has an increased specific surface area as a result of the hierarchical pore structure, which is beneficial for magnesium-ion insertion/deinsertion. Therefore, an aqueous rechargeable magnesium-ion full battery is successfully constructed with FeVO /C as the anode, Mg-OMS-1 (OMS=octahedral molecular sieves) as the cathode, and 1.0 mol L MgSO as the electrolyte. The discharge capacity of the Mg-OMS-1//FeVO /C aqueous battery is 58.9 mAh g at a current density of 100 mA g ; this value is obtained by calculating the total mass of two electrodes and the capacity retention rate of this device is 97.7 % after 100 cycles, with almost 100 % coulombic efficiency, which indicates that the system has a good electrochemical reversibility. Additionally, this system can achieve a high energy density of 70.4 Wh kg , which provides powerful evidence that an aqueous magnesium-ion battery is possible.

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Section: Introductionmentioning

confidence: 99%

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

Zhang

Zhu

et al. 2017

Chemistry A European J

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“…Presently, various sodium-based materials such as Na 3 V 2 (PO 4 ) 3 [9], Na 2 FeP 2 O 7 [10], Na 2 CuFe(CN) 6 [11], and Na 4 Mn 9 O 18 have been developed as active materials for ASIBs [12]. Among them, Na 4 Mn 9 O 18 (NMO) with orthogonal structure has two types of tunnels (S-type and O-type) formed by the MnO 6 octahedra and MnO 5 square pyramids.…”

Section: Introductionmentioning

confidence: 99%

Na4Mn9O18/Carbon Nanotube Composite as a High Electrochemical Performance Material for Aqueous Sodium-Ion Batteries

et al. 2017

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The aqueous sodium-ion battery (ASIB) is one of the promising new energy storage systems owing to the abundant resources of sodium as well as efficiency and safety of electrolyte. Herein, we report an ASIB system with Na4Mn9O18/carbon nanotube (NMO/CNT) as cathode, metal Zn as anode and a novel Na+/Zn2+ mixed ion as electrolyte. The NMO/CNT with microspherical structure is prepared by a simple spray-drying method. The prepared battery delivers a high reversible specific capacity and stable cyclability. Furthermore, the battery displays a stable reversible discharge capacity of 53.2 mAh g−1 even at a high current rate of 4 C after 150 cycles. Our results confirm that the NMO/CNT composite is a promising electrode cathode material for ASIBs.

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“…Na 0.44 MnO 2 delivered a capacity of 45 mAh g −1 at C/8 rate . Among polyanionic based materials, Na 2 FeP 2 O 7 was reported having capacity of 78 mAh g −1 at 1 C rate . NaVPO 4 F was also shown to be as active cathode material in aqueous system with a capacity of 54 mAh g −1 with poor cyclability .…”

Section: Resultsmentioning

confidence: 97%

“…Thus, the choice of stable Na‐based cathodes is limited, although there are reports on ultrafast high energy aqueous full cell like Na 0.44 MnO 2 | NaTi 2 (PO 4 ) 3 . Moving to polyanionic systems, various PO 4 ‐based cathodes have been employed in aqueous batteries like NaFePO 4 and Na 2 FeP 2 O 7 . Fe‐based phosphate compounds are known to be economic having thermal/ chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Na₂FePO₄F Fluorophosphate as Positive Insertion Material for Aqueous Sodium‐Ion Batteries

et al. 2018

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Exploring stable and economic cathodes for aqueous sodium‐ion batteries, we have investigated iron‐based fluorophosphate (Na2FePO4F) as a compound for applications in aqueous battery systems. Solution combustion synthesized Na2FePO4F is found to act as an efficient cathode for aqueous Na‐ion batteries delivering a reversible capacity over 85 mAh g−1 (at a rate of 1 mA cm−2) with excellent rate kinetics. Further, this layered Na2FePO4F has been successfully implemented to design a full aqueous cell with NASICON‐type NaTi2(PO4)3 as anode, delivering a reversible capacity of 90 mAh g−1. In conclusion, Na2FePO4F is proposed as a potential cathode material for aqueous Na‐ion batteries.

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Na2FeP2O7 as a positive electrode material for rechargeable aqueous sodium-ion batteries

Cited by 91 publications

References 23 publications

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

Na4Mn9O18/Carbon Nanotube Composite as a High Electrochemical Performance Material for Aqueous Sodium-Ion Batteries

Na₂FePO₄F Fluorophosphate as Positive Insertion Material for Aqueous Sodium‐Ion Batteries

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Na2FeP2O7 as a positive electrode material for rechargeable aqueous sodium-ion batteries

Cited by 91 publications

References 23 publications

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO4 Anode and a Mg‐OMS‐1 Cathode

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO4 Anode and a Mg‐OMS‐1 Cathode

Na4Mn9O18/Carbon Nanotube Composite as a High Electrochemical Performance Material for Aqueous Sodium-Ion Batteries

Na2FePO4F Fluorophosphate as Positive Insertion Material for Aqueous Sodium‐Ion Batteries

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High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

High‐Energy‐Density Aqueous Magnesium‐Ion Battery Based on a Carbon‐Coated FeVO₄ Anode and a Mg‐OMS‐1 Cathode

Na₂FePO₄F Fluorophosphate as Positive Insertion Material for Aqueous Sodium‐Ion Batteries