New, Highly Ion‐Conductive Crystals Precipitated from Li2S–P2S5 Glasses

Mizuno, Fuminori; Hayashi, Akitoshi; Tadanaga, Kiyoharu; Tatsumisago, Masahiro

doi:10.1002/adma.200401286

Cited by 778 publications

(636 citation statements)

References 13 publications

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“…A high-temperature phase, such as α-AgI (Ag + superionic conductor) 25,26 or Li 7 P 3 S 11 (Li + superionic conductor) 16,17 , with a high ionic conductivity precipitates as the first crystal from a supercooled liquid above the glass transition temperature. This is the first time for sodium ion conductors that cubic Na 3 PS 4 has been stabilized as a high-temperature phase.…”

Section: Discussionmentioning

confidence: 99%

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Superionic glass-ceramic electrolytes for room-temperature rechargeable sodium batteries

et al. 2012

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Innovative rechargeable batteries that can effectively store renewable energy, such as solar and wind power, urgently need to be developed to reduce greenhouse gas emissions. All-solid-state batteries with inorganic solid electrolytes and electrodes are promising power sources for a wide range of applications because of their safety, long-cycle lives and versatile geometries. Rechargeable sodium batteries are more suitable than lithium-ion batteries, because they use abundant and ubiquitous sodium sources. solid electrolytes are critical for realizing allsolid-state sodium batteries. Here we show that stabilization of a high-temperature phase by crystallization from the glassy state dramatically enhances the na + ion conductivity. An ambient temperature conductivity of over 10 − 4 s cm − 1 was obtained in a glass-ceramic electrolyte, in which a cubic na 3 Ps 4 crystal with superionic conductivity was first realized. All-solid-state sodium batteries, with a powder-compressed na 3 Ps 4 electrolyte, functioned as a rechargeable battery at room temperature.

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Section: Discussionmentioning

confidence: 99%

“…We have studied Li + ion conducting electrolytes and found that solid sulphide electrolytes made from the system Li 2 S-P 2 S 5 have a high conductivity and a wide electrochemical window 16,17 , making them suitable for all-solid-state lithium secondary batteries that have excellent cycling and rate performances [18][19][20][21] .…”

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confidence: 99%

Superionic glass-ceramic electrolytes for room-temperature rechargeable sodium batteries

et al. 2012

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“…such as Li 3 PS 4 and Li 10 SnP 2 S 14 ) available, where targeted structural chemistry might lead to the desired properties. 4,[77][78][79][80][81][82][83][84] …”

Section: Dalton Transactions Perspectivementioning

confidence: 99%

Structural limitations for optimizing garnet-type solid electrolytes: a perspective

Zeier

2014

Dalton Trans.

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Lithium ion batteries exhibit the highest energy densities of all battery types and are therefore an important technology for energy storage in every day life. Today's commercially available batteries employ organic polymer lithium conducting electrolytes, leading to multiple challenges and safety issues such as poor chemical stability, leakage and flammability. The next generation lithium ion batteries, namely all solid-state batteries, can overcome these limitations through employing a ceramic Li + conducting electrolyte. In the past decade, there has been a major focus on the structural and ionic transport properties of lithium-conducting garnets, and the extensive research efforts have led to a thorough understanding of the structure-property relationships in this class of materials. However, further improvement seems difficult due to structural limitations. The purpose of this Perspective article is to provide a brief structural overview of Li conducting garnets and the structural influence on the optimization of Li-ionic conductivities.

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“…The 70Li 2 S·30P 2 S 5 (mol %) glass-ceramic showed the highest conductivity of 3.2 © 10 ¹3 S cm ¹1 at room temperature in lithium ion conductors reported so far. 9) We found that a superionic conducting Li 7 P 3 S 11 crystal was precipitated in the 70Li 2 S·30P 2 S 5 (mol %) glass-ceramic. The Li 7 P 3 S 11 phase crystallized in a triclinic cell, space group P-1, a = 12.5009(3) ¡, b = 6.03160(17) ¡, c = 12.5303(3) ¡, ¡ = 102.845(3)°, ¢ = 113.2024(18)°, £ = 74.467(3)°.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of superionic conducting Li7P3S11 crystal from glassy liquids

Minami

Hayashi

Tatsumisago

2010

J. Ceram. Soc. Japan

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Superionic Li+ ion conducting Li 7 P 3 S 11 crystal was prepared by crystallization of the 70Li 2 S·30P 2 S 5 (mol %) glass and melt. In the case of crystallization of the 70Li 2 S·30P 2 S 5 glass, the crystallized electrolyte heated at 360°C for 1 h showed a conductivity of 4.1 © 10 ¹3 S cm ¹1 at room temperature. In the case of crystallization from the 70Li 2 S·30P 2 S 5 melt, a single phase of the Li 7 P 3 S 11 crystal was obtained by crystallization of the melt at 700°C for 48 h and then quenching in ice water. The crystallized electrolyte showed the conductivity of 2.9 © 10 ¹3 S cm ¹1 at room temperature. The precipitated crystal depended on the heat treatment temperature, holding time, and cooling rate. In both crystallization processes from the glass and melt, the Li 7 P 3 S 11 crystal was precipitated as a primary phase from supercooled liquids and thus the superionic conducting Li 7 P 3 S 11 crystal is a high temperature phase at the composition 70Li 2 S·30P 2 S 5 .

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New, Highly Ion‐Conductive Crystals Precipitated from Li₂S–P₂S₅ Glasses

Cited by 778 publications

References 13 publications

Superionic glass-ceramic electrolytes for room-temperature rechargeable sodium batteries

Superionic glass-ceramic electrolytes for room-temperature rechargeable sodium batteries

Structural limitations for optimizing garnet-type solid electrolytes: a perspective

Preparation and characterization of superionic conducting Li7P3S11 crystal from glassy liquids

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