A long-life Na–air battery based on a soluble NaI catalyst

Yin, Wenwen; Shadike, Zulipiya; Yang, Yin; Ding, Fei; Lin, Song; Li, Hong; Fu, Zheng‐Wen

doi:10.1039/c4cc08439j

Cited by 50 publications

(32 citation statements)

References 15 publications

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“…Yin et al also reported the presence of this peak before charging their NaI-containing sodium-oxygen battery [21]. Based on this reaction it can be deduced that H 2 O and I 3 -would be chemically formed.…”

Section: Resultsmentioning

confidence: 93%

Operando UV-visible spectroscopy evidence of the reactions of iodide as redox mediator in Li–O2 batteries

Landa‐Medrano

Olivares-Marín

Pinedo

et al. 2015

Electrochemistry Communications

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Section: Resultsmentioning

confidence: 93%

Operando UV-visible spectroscopy evidence of the reactions of iodide as redox mediator in Li–O2 batteries

Landa‐Medrano

Olivares-Marín

Pinedo

et al. 2015

Electrochemistry Communications

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“…The latter involves the electrochemical oxidation of Fe(C 5 H 5 ) 2 into Fe(C 5 H 5 ) 2 + (electrochemistry), according to UV absorption spectra of the electrolytes containing Fe(C 5 H 5 ) 2 after the battery directly charged to 3.5 V, then the oxidized product (Fe(C 5 H 5 ) 2 + ) will spontaneously react with Na 2 O 2 formed in the discharge process to re-produce Fe(C 5 H 5 ) 2 and release O 2 at the air electrode side. As previously reported for air batteries in pure oxygen environment, the catalyst exhibits either the electrocatalytic properties 7,22,23 or electrochemistry 14 .While, the liquid redox catalyst of Fe(C 5 H 5 ) 2 , homogeneous dissolving in the electrolyte, possesses the feature of dual catalytic behaviors as electrocatalyst and electrochemistry. In addition, the lower charge potential at about 3.1-3.2 V can avoid the decomposition of electrolyte and thus prolong cycle life of SABs.…”

Section: Resultsmentioning

confidence: 78%

Dual catalytic behavior of a soluble ferrocene as an electrocatalyst and in the electrochemistry for Na–air batteries

et al. 2015

Self Cite

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“…The schematic diagram of a typical Na–air battery is shown in Figure A. However, sodium peroxide and peroxide dehydrate are also reported in literature . Interestingly, the theoretical calculation on the surface energies of various sodium oxide crystals with energy of bulk compounds suggests that bulk sodium peroxide is a more stable phase under standard operating conditions and sodium superoxide is more stable at the nanoscale under elevated oxygen partial pressures .…”

Section: Sodium–air Batteriesmentioning

confidence: 73%

“…Meanwhile, soluble catalysts are also very important in Li–/Na–air battery systems. So far, ethyl viologen redox couple, halide anions, aromatic compounds, quiones/quinoids, and transition metal complexes have been successfully applied in metal–air systems, where the battery shows much improved battery cyclic life and smaller overpotential …”

Section: Introductionmentioning

confidence: 99%

Electrocatalysis of Rechargeable Non‐Lithium Metal–Air Batteries

Zhao

et al. 2017

Adv Materials Inter

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As the critical component for rechargeable metal-air batteries, bifunctional catalysts for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are under the intensive investigation for different systems. [1] Noble metals and their alloys are first introduced for metal-air batteries, especially for the good ORR performance of Pt. Later, nonprecious metal oxides and their composites are applied for their low price and comparable good catalytic performance. [21][22][23][24] Lately, various 3D structured and metalfree carbon catalysts are developed for their large specific surface area, good corrosion resistance, high stability, and low price. [25][26][27][28] In general, nanocrystals and complex nanostructures represent a world of new possibilities and exciting opportunities. Their morphologies and composition are highly tunable and controllable, which can expose different facets and cause different atomic arrangements on the surface, leading to the enhanced ORR and/or OER performance. Meanwhile, soluble catalysts are also very important in Li-/Na-air battery systems. So far, ethyl viologen redox couple, halide anions, aromatic compounds, quiones/quinoids, and transition metal complexes have been successfully applied in metal-air systems, where the battery shows much improved battery cyclic life and smaller overpotential. [29,30] In respect of the rapid growth of investigations, we summarize the recent progress of secondary non-lithium metal-air batteries, discuss the important issues of electrochemical reactions and bifunctional catalysts. Future perspectives are offered in the end, which should shed light on further research and design of bifunctional catalysts for secondary metal-air batteries. This mini review is organized in the following sequence: Na-air battery, Zn-air battery, and others like K-/Mg-air batteries. Sodium-Air BatteriesRecently, the substitution of lithium by sodium has been a promising solution to surpass Li-air limitations of high price, lower Coulombic efficiency, and large overpotential. [31][32][33][34] During the typical electrochemical process of Na-air battery, the sodium metal is oxidized and sodium ions migrate across the organic/ organic-aqueous electrolyte. After oxygen dissolving in the regions of electrolyte near cathode, superoxide species (O 2 − ) are generated, where sodium superoxide is then formed as the discharge product. [35][36][37][38][39][40][41][42] The schematic diagram of a typical Na-air Rechargeable metal-air batteries show great promise in replacing conventional batteries due to their high theoretical energy density and infinite oxygen fuel from air. Rechargeable non-Li-air batteries display the benefits of low price, high Coulombic efficiency, and small overpotential. Whereas in the case of Li-air batteries, the occurring electrocatalysis is intensively investigated, the situation is much less studied in the case of non-lithium metal-air batteries. In this progress report, recent developments of secondary non-lithium metal-air batteries are su...

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A long-life Na–air battery based on a soluble NaI catalyst

Abstract: A Na-air battery with NaI dissolved in a typical organic electrolyte could run up to 150 cycles with a capacity limit of 1000 mA h g(-1). The low charge voltage plateau of 3.2 V vs. Na(+)/Na in a Na-air battery should mainly be attributed to the oxidation reaction of active iodine anions.

Cited by 50 publications

References 15 publications

Operando UV-visible spectroscopy evidence of the reactions of iodide as redox mediator in Li–O2 batteries

Operando UV-visible spectroscopy evidence of the reactions of iodide as redox mediator in Li–O2 batteries

Dual catalytic behavior of a soluble ferrocene as an electrocatalyst and in the electrochemistry for Na–air batteries

Electrocatalysis of Rechargeable Non‐Lithium Metal–Air Batteries

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