Decorating β′′-alumina solid-state electrolytes with micron Pb spherical particles for improving Na wettability at lower temperatures

Chang, Hee-Jung; Lu, Xiaochuan; Bonnett, Jeffery F.; Canfield, Nathan L.; Han, Keesung; Engelhard, Mark H.; Jung, Kyu Yong; Sprenkle, Vincent; Li, Guosheng

doi:10.1039/c8ta06745g

Cited by 49 publications

(70 citation statements)

References 38 publications

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“…The application of sodium on this Pb‐decorated sodium‐beta alumina resulted in a significantly smaller wetting angle of sodium on the sodium‐beta alumina surface. It increased the performance of the Na/NiCl 2 test cell [116] . Li et al.…”

Section: Negative Electrode Interface Modifications and Dendrite Growthmentioning

confidence: 99%

“…A reasonable sodium wetting, i. e ., an intimate interface contact between the sodium negative electrode and sodium‐beta alumina, results in low polarization, and thus, in enhanced electrochemical cell performance and prolonged cell life. Reasonable sodium wetting is achieved for wetting angles θ <90° (see Figure 8A) [116] …”

Section: Negative Electrode Interface Modifications and Dendrite Growthmentioning

confidence: 99%

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From High‐ to Low‐Temperature: The Revival of Sodium‐Beta Alumina for Sodium Solid‐State Batteries

Fertig

Skadell

Schulz

et al. 2021

Batteries & Supercaps

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Sodium‐based batteries are promising post lithium‐ion technologies because sodium offers a specific capacity of 1166 mAh g−1 and a potential of −2.71 V vs. the standard hydrogen electrode. The solid electrolyte sodium‐beta alumina shows a unique combination of properties because it exhibits high ionic conductivity, as well as mechanical stability and chemical stability against sodium. Pairing a sodium negative electrode and sodium‐beta alumina with Na‐ion type positive electrodes, therefore, results in a promising solid‐state cell concept. This review highlights the opportunities and challenges of using sodium‐beta alumina in batteries operating from medium‐ to low‐temperatures (200 °C–20 °C). Firstly, the recent progress in sodium‐beta alumina fabrication and doping methods are summarized. We discuss strategies for modifying the interfaces between sodium‐beta alumina and both the positive and negative electrodes. Secondly, recent achievements in designing full cells with sodium‐beta alumina are summarized and compared. The review concludes with an outlook on future research directions. Overall, this review shows the promising prospects of using sodium‐beta alumina for the development of solid‐state batteries.

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Section: Negative Electrode Interface Modifications and Dendrite Growthmentioning

confidence: 99%

Section: Negative Electrode Interface Modifications and Dendrite Growthmentioning

confidence: 99%

From High‐ to Low‐Temperature: The Revival of Sodium‐Beta Alumina for Sodium Solid‐State Batteries

Fertig

Skadell

Schulz

et al. 2021

Batteries & Supercaps

View full text Add to dashboard Cite

show abstract

“…In such battery structure, inorganic Na‐ion conductors as solid electrolytes (SEs) play a significant role to achieve high battery performance. Several popular Na superionic conductors include β‐alumina, [4,5] the Na 3 Zr 2 Si 2 PO 12 family, [6,7] and chalcogenides, [8–10] among others. Among them, chalcogenide SEs such as Na 3 MX 4 (M=P, Sb X=S, Se) and Na 11 Sn 2 PS 12 show several advantages of low synthesis temperatures, cold‐pressing‐induced densification, and impressive ionic conductivity at room temperature [10–14] …”

Section: Figurementioning

confidence: 99%

Visualization of Solid‐State Synthesis for Chalcogenide Na Superionic Conductors by in‐situ Neutron Diffraction

et al. 2021

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Chalcogenide superionic sodium (Na) conductors have great potential as solid electrolytes (SEs) in all‐solid‐state Na batteries with advantages of high energy density, safety, and cost effectiveness. The crystal structures and ionically conductive properties of solid Na‐ion conductors are strongly influenced by synthetic approaches and processing parameters. Thus, understanding the synthesis process is essential to control the structures and phases and to obtain Na‐ion conductors with desirable properties. Thanks to the high‐flux and deep‐penetrating time‐of‐flight neutron diffraction (ND), in‐situ experiments were able to track real‐time structural changes of two chalcogenide SEs (Na3SbS4 and Na3SbS3.5Se0.5) during the solid‐state synthesis. For these two conductors, the ND results revealed a fast one‐step reaction for the synthesis and the molten process when heating up, and the recrystallization as well as the cubic‐to‐tetragonal phase transition up on cooling. Moreover, Se‐doping was found to influence the reaction temperatures, lattice parameter, and structure stability based on neutron experimental observations and theoretical simulation. This work presents a detailed structural study using in‐situ ND technology for the solid synthesis process of chalcogenide Na‐ion conductors, beneficial for the design and synthesis of new solid‐state conductors.

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“…Na-β"-alumina (Na 2 O.~6Al 2 O 3 ) solid electrolyte (BASE) is known to be an excellent sodium ion conductor with uses in sodium-sulfur batteries, sodium-nickel chloride (ZEBRA) batteries, alkali-metal thermoelectric convertors (AMTEC) and in sensors [1][2][3][4][5][6][7][8]. Among these applications, sodium sulfur batteries, originally developed by Weber and Kummer at the Ford Motor Company in the 1960s [9] have demonstrated attractive applications in automobiles before lithium batteries became more popular.…”

Section: Introductionmentioning

confidence: 99%

Sodium, Silver and Lithium-Ion Conducting β″-Alumina + YSZ Composites, Ionic Conductivity and Stability

Zhu

Virkar

2021

Crystals

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Na-β″-alumina (Na2O.~6Al2O3) is known to be an excellent sodium ion conductor in battery and sensor applications. In this study we report fabrication of Na- β″-alumina + YSZ dual phase composite to mitigate moisture and CO2 corrosion that otherwise can lead to degradation in pure Na-β″-alumina conductor. Subsequently, we heat-treated the samples in molten AgNO3 and LiNO3 to respectively form Ag-β″-alumina + YSZ and Li-β″-alumina + YSZ to investigate their potential applications in silver- and lithium-ion solid state batteries. Ion exchange fronts were captured via SEM and EDS techniques. Their ionic conductivities were measured using electrochemical impedance spectroscopy. Both ion exchange rates and ionic conductivities of these composite ionic conductors were firstly reported here and measured as a function of ion exchange time and temperature.

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Decorating β′′-alumina solid-state electrolytes with micron Pb spherical particles for improving Na wettability at lower temperatures

Abstract: Na wetting in a sunny-side-up shape is observed on a β′′-alumina surface decorated with micron-sized lead spherical particles.

Cited by 49 publications

References 38 publications

From High‐ to Low‐Temperature: The Revival of Sodium‐Beta Alumina for Sodium Solid‐State Batteries

From High‐ to Low‐Temperature: The Revival of Sodium‐Beta Alumina for Sodium Solid‐State Batteries

Visualization of Solid‐State Synthesis for Chalcogenide Na Superionic Conductors by in‐situ Neutron Diffraction

Sodium, Silver and Lithium-Ion Conducting β″-Alumina + YSZ Composites, Ionic Conductivity and Stability

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