Influence of yttrium component on water corrosion resistance of sodium ion conducting silicate glass

Kiyono, Hajime; Maruoka, Ken; Asahi, Taro; Nakayama, Susumu

doi:10.1016/j.ceramint.2015.04.084

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…[73] Table 2 includes the synthesis method and conductivity of some more silicates developed. [53,54,60,[62][63][64][65][66][73][74][75]79,81,82,[98][99][100][101][113][114][115][116][117][118][119][120][121][122][123][124] High-ionic conductivity at RT is achieved by the silicate doped with phosphorous, Na 5.2 Y 0.8 P 0.4 Si 3.6 O 12.0 . [98] 4.2.…”

Section: Techniquementioning

confidence: 99%

Progress in Sodium Silicates for All‐Solid‐State Sodium Batteries—a Review

2023

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All solid‐state sodium batteries (ASSSBs) are considered a promising alternative to lithium‐ion batteries due to increased safety in employing solid‐state components and the widespread availability and low cost of sodium. As one of the indispensable components in the battery system, organic liquid electrolytes are the currently used electrolytes due to their high‐ionic conductivity (10−2 S cm−1) and good wettability; however, their low‐thermal stability, flammability, and leakage tendency pose safety concerns. The growing sodium‐ion battery technology with solid electrolytes is a viable solution due to their improved safety. However, solid electrolytes suffer from insufficient ionic conductivity at room temperature (10−4–10−3 S cm−1), poor interface stability, high charge‐transfer resistance, and low wettability, yielding inferior battery performance. Sodium rare‐earth silicates are a new class of materials with a 3D structure framework similar to sodium‐superionic conductors (NASICONs). These silicates can be used as a solid electrolyte for solid‐state sodium batteries due to their high‐ionic conduction (10−3 S cm−1) at 25 °C. Herein, the sodium rare‐earth silicate synthesis, crystal structure, ion‐conduction mechanism, doping, and electrochemical properties are discussed. This emerging type of inorganic solid electrolyte can pave the way to building next‐generation ASSSBs.

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Section: Techniquementioning

confidence: 99%

Progress in Sodium Silicates for All‐Solid‐State Sodium Batteries—a Review

2023

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“…Previously, we have prepared a series of glasses, (R 2 O) 35.7 (RE 2 O 3 ) 7.2 (SiO 2 ) 57.1 (R: Li, Na, K), 9)11) (Na 2 O) 35.7 (RE 2 O 3 ) 7.2 (GeO 2 ) 57.1 , 12) and (Na 2 O) 35.7 (RE 2 O 3 ) 7.2 (B 2 O 3 ) 57.1 , 13) and investigated their ionic conductivity, and showed changes in water stability for Na 2 OSiO 2 glasses with changes in Y 2 O 3 content. 14) In this work, we evaluated local Na environment, conductivity, and water stability for glasses featuring divalent alkaline earth metal (M: Mg, Ca, Sr, Ba) replacements for trivalent Y, namely, (Na…”

Section: Introductionmentioning

confidence: 99%

Na environment, conductivity, and water leaching of sodium alkaline earth silicate glass

Nakayama,

Asahi,

Kiyono

2023

J. Ceram. Soc. Japan

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Na 2 O) 35.7 (MO) 7.2 (SiO 2 ) 57.1 and (Na 2 O) 33.7 (MO) 13.3 (SiO 2 ) 53.4 glass materials that feature alkaline earth metals (M = Mg, Ca, Sr, Ba) were evaluated as Na + conducting materials. Following glass synthesis from the melt under air at 1350 °C, Na environments, conductivity, and water leaching were investigated. 23 Na NMR spectrometry indicated NaO distances decreased in the order M = Mg > Ca > Sr > Ba. The conductivities and activation energies of conduction respectively decreased and increased slightly in the order M = Mg, Ca, Sr, and Ba. Regardless of M, the conductivities and activation energies of conduction of (Na 2 O) 33.7 (MO) 13.3 (SiO 2 ) 53.4 were lower and higher, respectively, than those of (Na 2 O) 35.7 (MO) 7.2 (SiO 2 ) 57.1 . Na leaching into water decreased in the order Ca < Mg < Sr < Ba. For each M, (Na 2 O) 33.7 (MO) 13.3 (SiO 2 ) 53.4 was more resistant to leaching than (Na 2 O) 35.7 (MO) 7.2 (SiO 2 ) 57.1 .

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