A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture

Duchêne, Léo; Kühnel, Ruben‐Simon; Rentsch, Daniel; Remhof, Arndt; Hagemann, Hans‐Rudolf; Battaglia, Corsin

doi:10.1039/c7cc00794a

Cited by 152 publications

(203 citation statements)

References 32 publications

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“…Nevertheless, polymer‐based electrolytes are the promising candidates for the development of the flexible SSBs. A crosslinked PMMA electrolyte with good mechanical strength was reported; the obtained Sb/Gel‐PMMA/Na 3 V 2 (PO 4 ) 3 SSBs exhibited a superior cycling stability even compared to the conventional liquid electrolyte battery shown in Figure (b) . However, this kind of SPEs presented a poor interface contact with electrode materials, which needed the assistance of liquid electrolytes to increase the compatibility.…”

Section: Solid‐state Sodium Batteriesmentioning

confidence: 99%

Solid‐State Sodium Batteries

Zhao

Liu

et al. 2018

Advanced Energy Materials

533

384

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Rechargeable Na‐ion batteries (NIBs) are attractive large‐scale energy storage systems compared to Li‐ion batteries due to the substantial reserve and low cost of sodium resources. The recent rapid development of NIBs will no doubt accelerate the commercialization process. As one of the indispensable components in current battery systems, organic liquid electrolytes are widely used for their high ionic conductivity and good wettability, but the low thermal stability, especially the easy flammability and leakage make them at risk of safety issues. The booming solid‐state batteries with solid‐state electrolytes (SSEs) show promise as alternatives to organic liquid systems due to their improved safety and higher energy density. However, several challenges including low ionic conductivity, poor wettability, low stability/incompatibility between electrodes and electrolytes, etc., may degrade performance, hindering the development of practical applications. In this review, an overview of Na‐ion SSEs is first outlined according to the classification of solid polymer electrolytes, composite polymer electrolytes, inorganic solid electrolytes, etc. Furthermore, the current challenges and critical perspectives for the potential development of solid‐state sodium batteries are discussed in detail.

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Section: Solid‐state Sodium Batteriesmentioning

confidence: 99%

Solid‐State Sodium Batteries

Zhao

Liu

et al. 2018

Advanced Energy Materials

533

384

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“…Moreover, the exploitation of alternative electrode chemistries, such as Li metal for LIBs, has been hindered by the intrinsically limited properties of LEs . For these reasons, the solidification of electrolytes with non‐flammable and single‐ion conducting inorganic solid electrolytes (SEs) is highly desired . Among various SE material candidates, the highest ionic conductivities comparable to those of LEs (≈10 mS cm −1 at room temperature) have been achieved for sulfide SEs (e.g., Li 10 GeP 2 S 12 : 12 mS cm −1 , Li 7 P 3 S 11 : 17 mS cm −1 , Li 5.5 PS 4.5 Cl 1.5 : 12 mS cm −1 ).…”

Section: Introductionmentioning

confidence: 99%

Ni‐Rich Layered Cathode Materials with Electrochemo‐Mechanically Compliant Microstructures for All‐Solid‐State Li Batteries

Jung

Kim

et al. 2019

Advanced Energy Materials

160

104

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While Ni‐rich cathode materials combined with highly conductive and mechanically sinterable sulfide solid electrolytes are imperative for practical all‐solid‐state Li batteries (ASLBs), they suffer from poor performance. Moreover, the prevailing wisdom regarding the use of Li[Ni,Co,Mn]O2 in conventional liquid electrolyte cells, that is, increased capacity upon increased Ni content, at the expense of degraded cycling stability, has not been applied in ASLBs. In this work, the effect of overlooked but dominant electrochemo‐mechanical on the performance of Ni‐rich cathodes in ASLBs are elucidated by complementary analysis. While conventional Li[Ni0.80Co0.16Al0.04]O2 (NCA80) with randomly oriented grains is prone to severe particle disintegration even at the initial cycle, the radially oriented rod‐shaped grains in full‐concentration gradient Li[Ni0.75Co0.10Mn0.15]O2 (FCG75) accommodate volume changes, maintaining mechanical integrity. This accounts for their different performance in terms of reversible capacity (156 vs 196 mA h g−1), initial Coulombic efficiency (71.2 vs 84.9%), and capacity retention (46.9 vs 79.1% after 200 cycles) at 30 °C. The superior interfacial stability for FCG75/Li6PS5Cl to for NCA80/Li6PS5Cl is also probed. Finally, the reversible operation of FCG75/Li ASLBs is demonstrated. The excellent performance of FCG75 ranks at the highest level in the ASLB field.

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“…Boron‐hydrogen compounds are receiving a lot of attention due to their diverse physical and chemical properties, which can be useful for various technological applications ranging from hydrogen storage, fuel cells to high conducting materials even at room temperature as well as for applications in medicinal chemistry . Boranes and carboranes are recently targeted because of their potential to form

BH \cdot \cdot \cdot π

interactions with the π ‐face of an arene .…”

Section: Introductionmentioning

confidence: 99%

“…[9,10,[29][30][31] Recently, a stable 3 V battery prototype has been successfully assembled using, for example, the Na 2 ðB 12 H 12 Þ 0:5 ðB 10 H 10 Þ 0:5 electrolyte. [9,32] On the other, metal borohydrides have attracted considerable interest due to their potential as hydrogen storage materials. [5,6,33,34] These compounds have a high gravimetric hydrogen content [35,36] which can be used for mobile applications.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Assessment of B−B−B, B−H_b−B, and B−H_t Bonds: From BH₃ to B₁₂H₁₂²⁻

et al. 2019

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We report the thermodynamic stabilities and the intrinsic strengths of three‐center‐two‐electron B−B−B and B−Hb−B bonds (Hb : bridging hydrogen), and two‐center‐two‐electron B−Ht bonds (Ht : terminal hydrogen) which can be served as a new, effective tool to determine the decisive role of the intermediates of hydrogenation/dehydrogenation reactions of borohydride. The calculated heats of formation were obtained with the G4 composite method and the intrinsic strengths of B−B−B, B−Hb−B, and B−Ht bonds were derived from local stretching force constants obtained at the B3LYP‐D2/cc‐pVTZ level of theory for 21 boron‐hydrogen compounds, including 19 intermediates. The Quantum Theory of Atoms in Molecules (QTAIM) was used to deepen the inside into the nature of B−B−B, B−Hb−B, and B−Ht bonds. We found that all of the experimentally identified intermediates hindering the reversibility of the decomposition reactions are thermodynamically stable and possess strong B−B−B, B−Hb−B, and B−Ht bonds. This proves that thermodynamic data and intrinsic B−B−B, B−Hb−B, and B−Ht bond strengths form a new, effective tool to characterize new (potential) intermediates and to predict their role for the reversibility of the hydrogenation/dehydrogenation reactions.

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A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture

Abstract: This journal is

Cited by 152 publications

References 32 publications

Solid‐State Sodium Batteries

Solid‐State Sodium Batteries

Ni‐Rich Layered Cathode Materials with Electrochemo‐Mechanically Compliant Microstructures for All‐Solid‐State Li Batteries

Quantitative Assessment of B−B−B, B−H_b−B, and B−H_t Bonds: From BH₃ to B₁₂H₁₂²⁻

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A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture

Abstract: This journal is

Cited by 152 publications

References 32 publications

Solid‐State Sodium Batteries

Solid‐State Sodium Batteries

Ni‐Rich Layered Cathode Materials with Electrochemo‐Mechanically Compliant Microstructures for All‐Solid‐State Li Batteries

Quantitative Assessment of B−B−B, B−Hb−B, and B−Ht Bonds: From BH3 to B12H122−

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Quantitative Assessment of B−B−B, B−H_b−B, and B−H_t Bonds: From BH₃ to B₁₂H₁₂²⁻