Sodium–Oxygen Batteries: Recent Developments and Remaining Challenges

Yadegari, Hossein; Sun, Xueliang

doi:10.1016/j.trechm.2019.12.003

Cited by 30 publications

(31 citation statements)

References 84 publications

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“…[ 34 ] In addition, owing to the reversible electrochemistry of the oxygen/superoxide (

{normalO}_{2} / {normalO}_{2}^{‐}

) redox pair, Na‐O 2 batteries could exhibit much lower charging overpotential compared to Li‐O 2 batteries with semi‐irreversible oxygen/peroxide(

{normalO}_{2} / {normalO}_{2}^{2 ‐}

) pairs. [ 35,36 ] Apart from these advances, however, one of the most challenging issues for Na‐O 2 batteries is that the formation of Na 2 O 2 during the discharge process would compete with the formation of NaO 2 , since peroxide formation is thermodynamically favored ( E 0 (Na 2 O 2 ) = 2.33 V, E 0 (NaO 2 ) = 2.27 V), [ 32 ] where E 0 is the standard electrode potential, while the charging overpotential with Na 2 O 2 as discharge product is not superior to that of Li‐O 2 batteries. To achieve the principal advantage of Na‐O 2 batteries, low charging overpotential, understanding its working mechanism and controlling the composition of discharge products is extremely important.…”

Section: Introductionmentioning

confidence: 99%

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Zheng

et al. 2021

Energy & Environ Materials

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Na‐O2 and Na‐CO2 battery systems have shown promising prospects and gained great progress over the past decade. This review present current research status of Na‐O2 and Na‐CO2 batteries, including reaction mechanisms, air cathode design strategies, sodium protection exploration, and electrolyte developments. The future research strategies are also presented to further improve their performance for achieving the practical application of true Na‐air batteries.

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“…[ 34 ] In addition, owing to the reversible electrochemistry of the oxygen/superoxide (

{normalO}_{2} / {normalO}_{2}^{‐}

) redox pair, Na‐O 2 batteries could exhibit much lower charging overpotential compared to Li‐O 2 batteries with semi‐irreversible oxygen/peroxide(

{normalO}_{2} / {normalO}_{2}^{2 ‐}

Section: Introductionmentioning

confidence: 99%

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Zheng

et al. 2021

Energy & Environ Materials

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“…Although MaBs present the above mentioned properties, their application today is hampered by the sluggish kinetics of oxygen reduction (ORR) and oxygen evolution (OER) reactions (Landa-Medrano et al, 2016a ) and the parasitic reactions occurring during cycling. One of the main challenges is related to their poor charge reversibility due to the formation of parasitic reactions (superoxide intermediates and radicals) and secondary phases (e.g., carbonates, hydroxides) which degrade the battery components during cycling (Lai et al, 2020 ; Yadegari and Sun, 2020 ) and are electrochemically irreversible (Landa-Medrano et al, 2016b , 2017 , 2019 ). These reactions can lead to the formation of alkali acetates, carbonates and carboxylates, among others, which are hard to oxidize; thus, these species accumulate on the cathode surface leading to the premature cell death (Aurbach et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Effect of Singlet Oxygen on Metal-O2 Batteries: Strategies Toward Deactivation

Larramendi

Ortiz‐Vitoriano

2020

Front. Chem.

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Aprotic metal-O 2 batteries have attracted the interest of the research community due to their high theoretical energy density that target them as potential energy storage systems for automotive applications. At present, these devices show various practical problems, which hinder the attainment of the high theoretical energy densities. Among the main limitations, we can highlight the irreversible parasitic reactions that lead to premature death of the battery. The degradation processes, mainly related to the electrolyte, lead to the formation of secondary products that accumulate throughout the cycling in the air electrode. This accumulation of predominantly insulating products results in the blocking of active sites, promoting less efficiency in system performance. Recently, it has been discovered that the superoxide intermediate radical anion is involved in the generation of the reactive oxygen singlet species (1 O 2) in metal-O 2 batteries. The presence of singlet oxygen is intimately linked with electrolyte degradation processes and with carbon-electrode corrosion reactions. This review analyzes the nature of singlet oxygen, while clarifying its toxic role in metal-O 2 batteries. Besides, the main mechanisms of deactivation of singlet oxygen are presented, trying to inspire the research community in the development of new molecules capable of mitigating the harmful effects related to this highly reactive species.

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“…The abundant and widely distributed resources and low price of sodium also make this battery system a competitive candidate for future application [7, 8] . The cycling stability of Na‐O 2 batteries is plagued, however, by the dendrite formation at the Na anode [9, 10] . Side reactions such as disproportionation of NaO 2 at the cathode also result in low Coulombic efficiency and by‐product accumulation at the cathode [11, 12] .…”

Section: Introductionmentioning

confidence: 99%

“…[7,8] Thecycling stability of Na-O 2 batteries is plagued, however,b yt he dendrite formation at the Na anode. [9,10] Side reactions such as disproportionation of NaO 2 at the cathode also result in low Coulombic efficiency and by-product accumulation at the cathode. [11,12] Therefore,s uppressing dendrite formation and stabilizing the active superoxide are crucial for the cyclability and the rechargeability of aprotic Na-O 2 batteries.…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Effects of Cation Additive on Na‐O₂Batteries

Zhao

Wang

et al. 2020

Angewandte Chemie

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Aprotic Na‐O2 batteries have attracted growing interest owing to their low overpotentials and high energy density. Their cycling stability and Coulombic efficiency are limited, however, by Na dendrite formation and superoxide (O2−) degradation. Here, we present a bifunctional cation additive, the tetrabutylammonium cation (TBA+), to simultaneously protect the Na anode and stabilize the superoxide. The adsorption of TBA+ on the Na anode suppresses the dendrite formation in the Na plating and ensures stable anode cycling at high current density in both Ar and oxygen atmospheres. Aprotic Na‐O2 batteries with TBA+ show increased Coulombic efficiency as well as good rate capability. These are rewarded by the fast desolvation kinetics of O2− and suppression of the disproportionation reaction of O2− with TBA+, as confirmed by molecular dynamics simulation and DFT calculations. This bifunctional effect of this cation additive paves a new avenue for the development of Na‐O2 batteries.

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Sodium–Oxygen Batteries: Recent Developments and Remaining Challenges

Cited by 30 publications

References 84 publications

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Unraveling the Effect of Singlet Oxygen on Metal-O2 Batteries: Strategies Toward Deactivation

Bifunctional Effects of Cation Additive on Na‐O₂Batteries

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Sodium–Oxygen Batteries: Recent Developments and Remaining Challenges

Cited by 30 publications

References 84 publications

Research Progress and Future Perspectives on Rechargeable Na‐O2 and Na‐CO2 Batteries

Research Progress and Future Perspectives on Rechargeable Na‐O2 and Na‐CO2 Batteries

Unraveling the Effect of Singlet Oxygen on Metal-O2 Batteries: Strategies Toward Deactivation

Bifunctional Effects of Cation Additive on Na‐O2Batteries

Contact Info

Product

Resources

About

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Research Progress and Future Perspectives on Rechargeable Na‐O₂ and Na‐CO₂ Batteries

Bifunctional Effects of Cation Additive on Na‐O₂Batteries