Characteristics of the Li2O–Li2S–P2S5 glasses synthesized by the two-step mechanical milling

Ohtomo, Takamasa; Hayashi, Akitoshi; Tatsumisago, Masahiro; Kawamoto, Koji

doi:10.1016/j.jnoncrysol.2012.12.044

Cited by 131 publications

(97 citation statements)

References 10 publications

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“…Therefore, handling of sulfide SEs must be done in an inert atmosphere. However, partial substitution of oxygen atoms for sulfur atoms in sulfide electrolytes can be effective in suppressing H 2 S gas generation (Ohtomo et al, 2013b). Very recently, Hayashi et al (2014) reported a composite electrolyte with 90 mol% of 75Li 2 S·21P 2 S 5 ·4P 2 O 5 glass and 10 mol% ZnO via mechanical milling.…”

Section: Glass-based Inorganic Electrolytes Glassy Electrolytesmentioning

confidence: 99%

Recent Advances in Inorganic Solid Electrolytes for Lithium Batteries

et al. 2014

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The review presents an overview of the recent advances in inorganic solid lithium ion conductors, which are of great interest as solid electrolytes in all-solid-state lithium batteries. It is focused on two major categories: crystalline electrolytes and glass-based electrolytes. Important systems such as thio-LISICON Li 10 SnP 2 S 12 , garnet Li 7 La 3 Zr 2 O 12 , perovskite Li 3x La (2/3) x TiO 3 , NASICON Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 , and glass-ceramic xLi 2 S·(1 − x )P − 2 S 5 and their progress are described in great detail. Meanwhile, the review discusses different ongoing strategies on enhancing conductivity, optimizing electrolyte/electrode interface, and improving cell performance.

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Section: Glass-based Inorganic Electrolytes Glassy Electrolytesmentioning

confidence: 99%

Recent Advances in Inorganic Solid Electrolytes for Lithium Batteries

et al. 2014

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“…A drawback of sulfide electrolytes is low chemical stability for water molecule in air atmosphere. However, selecting suitable structure with tolerance to hydrolysis is effective in suppressing H 2 S gas generation . It is noted that the amount of H 2 S generated from the Li 2 S‐P 2 S 5 glasses depends on the glass composition.…”

Section: Fabrication Of All‐solid‐state Batteriesmentioning

confidence: 99%

Sulfide Glass‐Ceramic Electrolytes for All‐Solid‐State Lithium and Sodium Batteries

Tatsumisago

Hayashi

2014

Int J of Appl Glass Sci

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159

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Sulfide glass‐ceramic electrolytes with Li+ or Na+ ion conduction have been developed in last decade. High‐temperature phases of Li7P3S11 and cubic Na3PS4 are precipitated from mother glasses, and the obtained glass‐ceramics show higher conductivity than the mother glasses. It is difficult to synthesize those high‐temperature phases by conventional solid‐state reaction, and glass electrolytes are thus important as a precursor for forming high‐temperature phases. The highest conductivities at 25°C of 1.1 × 10−2 S/cm for Li+ ion conductor (Li7P3S11) and 7.4 × 10−4 S/cm for Na+ ion conductor (Na3.06P0.94Si0.06S4) are achieved in sulfide glass‐ceramic electrolytes. All‐solid‐state batteries with sulfide glass‐ceramic electrolytes were fabricated by cold press at room temperature. Sulfide electrolytes have favorable mechanical properties to form favorable solid–solid contacts in solid‐state batteries by pressing without heat treatment. All‐solid‐state Li‐In/S and Na‐Sn/TiS2 cells using sulfide glass‐ceramic electrolytes operate as secondary batteries and exhibit good cycle performance at room temperature.

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“…911 Especially, the partial substitution of Li 2 O for Li 2 S was very effective in suppressing H 2 S gas generation. 10,11 In addition, the two-step synthesis procedure of Li 2 O and the Li 2 S-P 2 S 5 glass which was prepared in advance was significantly effective in suppressing H 2 S gas generation. 10,11 Furthermore, all-solid-state cells using sulfide electrolytes with high stability to moisture showed good cycleabilities and storage performances at high temperature.…”

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confidence: 99%

“…10,11 In addition, the two-step synthesis procedure of Li 2 O and the Li 2 S-P 2 S 5 glass which was prepared in advance was significantly effective in suppressing H 2 S gas generation. 10,11 Furthermore, all-solid-state cells using sulfide electrolytes with high stability to moisture showed good cycleabilities and storage performances at high temperature. 11,12 Improvement of stability of sulfide solid electrolytes to moisture has relation to advancement of cell performances.…”

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Glass Electrolytes with High Ion Conductivity and High Chemical Stability in the System LiI-Li2O-Li2S-P2S5

et al. 2013

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The Li 2 O-Li 2 S-P 2 S 5 glasses, which were prepared by a reaction of the Li 2 S-P 2 S 5 glass and Li 2 O, hardly generated H 2 S gas in air. These glasses showed relatively high ion conductivities about 10 −4 S cm −1 at room temperature. However, these conductivities were lower than those of original sulfide glasses. In this study, an addition of LiI to the Li 2 OLi 2 S-P 2 S 5 glasses was examined in order to improve ion conductivities. The 30LiI·70(0.07Li 2 O·0.68Li 2 S·0.25P 2 S 5 ) glass showed high ion conductivity of 1.3 × 10 −3 S cm −1 at room temperature, and hardly generated H 2 S gas in air. On the other hand, the 30LiI·70(0.07Li 2 O·0.68Li 2 S·0.25P 2 S 5 ) glass was electrochemically stable in the potential range of 0-10 V. Moreover, the all-solid-state C/LiCoO 2 cell using the 30LiI·70(0.07Li 2 O·0.68Li 2 S·0.25P 2 S 5 ) glass as solid electrolytes worked as lithium secondary batteries at room temperature, and exhibited a good cycle performance. Therefore, the 30LiI·70(0.07Li 2 O·0.68Li 2 S·0.25P 2 S 5 ) glass was a suitable electrolyte for all-solidstate cells because the glass had high conductivity, wide electrochemical window and high chemical stability to moisture.

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Characteristics of the Li2O–Li2S–P2S5 glasses synthesized by the two-step mechanical milling

Cited by 131 publications

References 10 publications

Recent Advances in Inorganic Solid Electrolytes for Lithium Batteries

Recent Advances in Inorganic Solid Electrolytes for Lithium Batteries

Sulfide Glass‐Ceramic Electrolytes for All‐Solid‐State Lithium and Sodium Batteries

Glass Electrolytes with High Ion Conductivity and High Chemical Stability in the System LiI-Li2O-Li2S-P2S5

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