Influence of Fe and Ti addition on properties of Na+-β/β″-alumina solid electrolytes

Lee, Sung-Tae; Lee, Daehan; Kim, Jinsik; Lim, Sung-Ki

doi:10.1007/s12540-017-6120-3

Cited by 14 publications

(14 citation statements)

References 47 publications

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“…So far, different synthesis methods, such as solid‐state reaction, coprecipitation, sol–gel, solution combustion techniques, alkoxide hydrolysis, molecular beam epitaxy, laser chemical vapor deposition, etc. are used to synthesize this material, and some of them can effectively decrease the grain‐boundary effect leading to a higher densification . In fact, a pure Na‐β″‐alumina phase is not desirable for application due to its moisture sensitivity and a low mechanical strength .…”

Section: Solid‐state Electrolytesmentioning

confidence: 99%

Solid‐State Sodium Batteries

Zhao

Liu

et al. 2018

Advanced Energy Materials

575

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 Electrolytesmentioning

confidence: 99%

Solid‐State Sodium Batteries

Zhao

Liu

et al. 2018

Advanced Energy Materials

575

384

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“…In previous work, we have reported the fabrication of BASE to increase the sintered properties using the addition of various dopants [27][28][29][30][31][32]. Table 1 summarizes the characteristics of the BASE with various dopants added.…”

Section: Resultsmentioning

confidence: 99%

“…Table 1 summarizes the characteristics of the BASE with various dopants added. The improvements in the sintered densities of the BASE are the result of the increasing concentrations of Al 3+ ion vacancies in the spinel block; these vacancies promote densification by providing a diffusion path for Al 3+ ions [31]. The sintered densities of Si-and Ti-doped BASE were improved by doping with small amounts of SiO 2 and TiO 2 .…”

Section: Resultsmentioning

confidence: 99%

“…The increase in densification with SiO 2 and TiO 2 content occurred partly from the effect of the liquid phase in allowing the rearrangement of the particles. A liquid phase creates an attractive force between the particles, putting the particle contacts in compression [29,31]. In the YSZ-, CSZ-doped BASE, the sintered densities increased with the addition of each dopant content.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of a Full-Scale Pilot Model of a Cost-Effective Sodium Nickel-Iron Chloride Battery Over 40 Ah

Lee

Ahn

et al. 2021

J. Electrochem. Sci. Technol

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To fabricate a full-scale pilot model of the cost-effective Na-(Ni,Fe)Cl 2 cell, a Na-beta-alumina solid electrolyte (BASE) was developed by applying a one-step synthesis cum sintering process as an alternative to the conventional solid-state reaction process. Also, Fe metal powder, which is cheaper than Ni, was mixed with Ni metal powder, and was used for cathode material to reduce the cost of raw material. As a result, we then developed a prototype Na-(Ni,Fe)Cl 2 cell. Consequently, the Ni content in the Na-(Ni,Fe)Cl 2 cell is decreased to approximately (20 to 50) wt.%. The #1 prototype cell (dimensions: 34 mm × 34 mm × 235 mm) showed a cell capacity of 15.9 Ah, and 160.3 mAh g -1 (per the Ni-Fe composite), while the #2 prototype cell (dimensions: 50 mm × 50 mm × 335 mm) showed a cell capacity of 49.4 Ah, and 153.2 mAh g -1 at the 2 n d cycle.

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“…However, too much of the β” phase is not desirable either, because of its poor mechanical strength and sensitivity to moisture [602]. The other difficulty already mentioned regarding the use of solid electrolytes in lithium batteries is the need to minimize the amount of grain boundaries, and progress has been achieved in the particular case of Na-β”-Al 2 O 3 [603]. The second difficulty, also mentioned earlier, is to maintain the contact between the solid-state electrolyte and electrodes.…”

Section: Sodium-ion Batteriesmentioning

confidence: 99%

Building Better Batteries in the Solid State: A Review

et al. 2019

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Most of the current commercialized lithium batteries employ liquid electrolytes, despite their vulnerability to battery fire hazards, because they avoid the formation of dendrites on the anode side, which is commonly encountered in solid-state batteries. In a review two years ago, we focused on the challenges and issues facing lithium metal for solid-state rechargeable batteries, pointed to the progress made in addressing this drawback, and concluded that a situation could be envisioned where solid-state batteries would again win over liquid batteries for different applications in the near future. However, an additional drawback of solid-state batteries is the lower ionic conductivity of the electrolyte. Therefore, extensive research efforts have been invested in the last few years to overcome this problem, the reward of which has been significant progress. It is the purpose of this review to report these recent works and the state of the art on solid electrolytes. In addition to solid electrolytes stricto sensu, there are other electrolytes that are mainly solids, but with some added liquid. In some cases, the amount of liquid added is only on the microliter scale; the addition of liquid is aimed at only improving the contact between a solid-state electrolyte and an electrode, for instance. In some other cases, the amount of liquid is larger, as in the case of gel polymers. It is also an acceptable solution if the amount of liquid is small enough to maintain the safety of the cell; such cases are also considered in this review. Different chemistries are examined, including not only Li-air, Li–O2, and Li–S, but also sodium-ion batteries, which are also subject to intensive research. The challenges toward commercialization are also considered.

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Influence of Fe and Ti addition on properties of Na+-β/β″-alumina solid electrolytes

Cited by 14 publications

References 47 publications

Solid‐State Sodium Batteries

Solid‐State Sodium Batteries

Fabrication of a Full-Scale Pilot Model of a Cost-Effective Sodium Nickel-Iron Chloride Battery Over 40 Ah

Building Better Batteries in the Solid State: A Review

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