Electrochemical and Thermal Properties of α-NaFeO<sub>2</sub>Cathode for Na-Ion Batteries

Zhao, Jianhui; Zhao, Liwei; Dimov, Nikolay; Okada, Shigeto; Nishida, Tetsuaki

doi:10.1149/2.007305jes

Cited by 253 publications

(200 citation statements)

References 16 publications

Supporting

Mentioning

185

Contrasting

Unclassified

Order By: Relevance

“…[49,50] Okada and co-workers demonstrated the reversible extraction and insertion of Na + for an Na/NaFeO 2 cell based on Fe 3+ /Fe 4+ redox couple. [46] O3-type NaFeO 2 delivers reversible 80 mA h g −1 when a charge cutoff voltage is set to 3.4 V versus Na + /Na (all the voltage values vs Na + /Na afterward, unless specified) as shown in Figure 2a. However, the reversible capacity and voltage polarization decrease once charged to above 3.5 V due to its irreversible structural transitions, during which trivalent iron ions could migrate into the neighboring tetrahedral sites investigated by ex situ X-ray absorption spectroscopy (XAS) [51] and X-ray diffraction (XRD) [52] results.…”

Section: Single-metal-based Oxides Peculiar To Sibsmentioning

confidence: 99%

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Wang

You

Yin

et al. 2017

Advanced Energy Materials

620

464

View full text Add to dashboard Cite

sources into large-scale grids, inexpensive, efficient, and fast-responding electrical energy storage (EES) systems are essential to store the off-peak energy and releasing the stored energy during the onpeak period. Among various EES systems, rechargeable batteries represent one of the most competitive technologies because of their high conversion efficiency and environmental friendliness. [1][2][3][4] For stationary EES systems, batteries with low cost, high safety, high rate capability, and long cycle stability are highly desired.Lithium (Li)-ion batteries (LIBs) have achieved great success in the market of portable electronics and electric vehicles since their commercialization by Sony Company in 1991. However, the shortage of Li resources in nature gives rise to a concern about its sustainable development in grid scale. Compared with Li, sodium resource has rich natural abundance in the earth crust and a worldwide distribution, consequently leading to a low price of sodium-based raw materials (e.g., the cost of Na 2 CO 3 is about 25-30 times lower than that of Li 2 CO 3 ). Besides, sodium has a suitable redox potential (E 0 (Na + /Na) = −2.71 V versus standard hydrogen electrode (SHE), 0.3 V above that of Li + /Li) and similar physical and chemical properties with lithium. [5,6] Therefore, rechargeable sodium-ion batteries (SIBs), which have a similar "rockingchair" working principle of LIBs, are emerging as an appealing choice as alternatives for LIBs. Note that it is difficult for SIBs to bypass LIBs in terms of energy densities because of the much higher weight of Na and lower standard electrochemical potential. [7][8][9][10] Nevertheless, the use of low-cost materials, including inexpensive Na-based raw materials and Al current collectors for both cathodes and anodes in SIBs, could significantly reduce the cost. In this case, SIBs could be applied where cost-effectiveness rather than energy density is the most critical issue, e.g., in the field of large-scale EES. As a result, sodiumbased electroactive materials are enjoying renewed interest especially for very low cost systems for grid storage. [11,12] Given that cathode materials are the key component that determines energy density and cost, tremendous efforts have been devoted to exploring suitable positive electrode materials with high reversible capacity, rapid Na ions insertion/extraction, and good cycling stability in the past few years. [13,14] A broad range of compounds, including layered oxides, polyanionic frameworks, hexacyanoferrates, and organics, haveThe increasing demand for replacing conventional fossil fuels with clean energy or economical and sustainable energy storage drives better battery research today. Sodium-ion batteries (SIBs) are considered as a promising alternative for grid-scale storage applications due to their similar "rockingchair" sodium storage mechanism to lithium-ion batteries, the natural abundance, and the low cost of Na resources. Searching for appropriate electrode materials with acceptable electrochemical perfor...

show abstract

Section: Single-metal-based Oxides Peculiar To Sibsmentioning

confidence: 99%

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Wang

You

Yin

et al. 2017

Advanced Energy Materials

620

464

View full text Add to dashboard Cite

show abstract

“…For example, non-aqueous electrolytes often induce exothermic decomposition by the release oxygen gas from metal oxide cathode in SIBs. 1,2 Besides, conventional nonaqueous electrolytes are generally costly and have poor ionic conductivity. To overcome these disadvantages, aqueous sodium-ion batteries with aqueous electrolyte that are safe, cost effective, and offer high ionic conductivity have been proposed as attractive alternatives for large-scale energy storage.…”

Section: Introductionmentioning

confidence: 99%

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

et al. 2017

Self Cite

View full text Add to dashboard Cite

From the viewpoint of the cost and safety, aqueous sodium-ion batteries are attractive candidate for large-scale energy storage. Although the operating voltage range of the aqueous battery is theoretically limited to 1.23 V by the electrochemical decomposition of water, the voltage restriction is a little bit eased in real aqueous battery system by the charge/discharge overvoltage. Effect of the concentrated electrolyte on the operation voltage was studied in aqueous Na-ion battery with Na 2 MnFe(CN) 6 hexacyanoferrates cathode and NaTi 2 (PO 4 ) 3 NASICON-type anode, in order to increase the discharge voltage. According to the cyclic voltammetry, the electrochemical window of diluted 1 mol kg −1 NaClO 4 aqueous electrolyte is only 1.9 V, whereas the corresponding electrochemical window of concentrated 17 mol kg −1 NaClO 4 aqueous electrolyte is widen to 2.8 V. This wide electrochemical window of the concentrated aqueous electrolyte allows the Na 2 MnFe(CN) 6 //NaTi 2 (PO 4 ) 3 aqueous sodium-ion system to work reversibly. By contrast, the framework of Na 2 MnFe(CN) 6 cathode was destroyed by the hydroxide anion generated in diluted 1 mol kg −1 electrolyte.

show abstract

“…To the best of our knowledge, the important parameters of NaFe y Mn 1-y O 2 materials such as their diffusivity and electrical conductivity have not been reported so far. On the other hand, the electrochemical performance of NaFe 0.5 Mn 0.5 O 2 was recently examined against Na and showed large polarization and continuous capacity fading upon cycling [7,8]. Doping is a common treatment used to improve the electrochemical performance of the electrode hosts.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for Na-ion batteries

Kee

Dimov

Champet

et al. 2016

Ionics

Self Cite

View full text Add to dashboard Cite

P2-Na 2/3 MO 2 materials have recently been investigated as promising high-capacity cathode hosts for Na-ion batteries. On the other hand, the Na-deficiency in these materials precludes a high energy density when coupled with Na-free anodes. As an alternative, O3-NaFeO 2 and its various derivatives such as NaFe 0.5 Mn 0.5 O 2 have been suggested and investigated. In this study, we dope Al in NaFe 0.5 Mn 0.5 O 2 and investigate Al-doping effects on the electrochemical properties of the Na + host. The Al-doped compound shows almost the same conductivity and diffusivity as the pristine structure. However, Al-doping enhances O3-P3 phase transition.

show abstract

Electrochemical and Thermal Properties of α-NaFeO₂Cathode for Na-Ion Batteries

Cited by 253 publications

References 16 publications

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for Na-ion batteries

Contact Info

Product

Resources

About

Electrochemical and Thermal Properties of α-NaFeO2Cathode for Na-Ion Batteries

Cited by 253 publications

References 16 publications

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for Na-ion batteries

Contact Info

Product

Resources

About

Electrochemical and Thermal Properties of α-NaFeO₂Cathode for Na-Ion Batteries