Preparation and characterization of superionic conducting Li7P3S11 crystal from glassy liquids
Preparation and characterization of superionic conducting Li7P3S11 crystal from glassy liquids
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DOI：
10.2109/jcersj2.118.305
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发表时间：
2010-04-01
影响因子：
1.1
通讯作者：
Tatsumisago, Masahiro
中科院分区：
文献类型：
--
作者：
Minami, Keiichi;Hayashi, Akitoshi;Tatsumisago, Masahiro
以70Li（2）S中心点30P（2）S（5）（mol %）玻璃为原料，通过晶化和熔融制备了锂离子导电晶体Li7P3S11。在70Li（2）S中心点30P（2）S（5）玻璃结晶的情况下。在360 ℃下加热1小时的结晶电解质在室温下显示出4.1 × 10（-3）S cm（-1）的电导率。在从70Li（2）S中心点30P（2）S（5）熔体结晶的情况下，通过在700 ℃下结晶熔体48小时，然后在冰水中淬火，获得Li7P3S11晶体的单相。结晶的电解质在室温下的电导率为2.9 × 10（-3）S cm（-1）。析出的晶体取决于热处理。温度保持时间和冷却速率。在玻璃和熔体前的两个结晶过程中，Li7P3S11晶体作为主相从过冷液体中沉淀，因此超离子导电Li7P3S11晶体是组成为70Li（2）S中心点30P（2）S（5）的高温相。(C)2010日本陶瓷学会版权所有
Superionic Li+ ion conducting Li7P3S11 crystal was prepared by crystallization of the 70Li(2)S center dot 30P(2)S(5) (mol %) glass and melt. In the case of crystallization of the 70Li(2)S center dot 30P(2)S(5) glass. the crystallized electrolyte heated at 360 degrees C for 1 h showed a conductivity of 4.1 x 10(-3) S cm(-1) at room temperature. In the case of crystallization from the 70Li(2)S center dot 30P(2)S(5) melt, a single phase of the Li7P3S11 crystal was obtained by crystallization of the melt at 700 degrees C for 48 h and then quenching in ice water. The crystallized electrolyte showed the conductivity of 2.9 x 10(-3) S cm(-1) at room temperature. The precipitated crystal depended on the heat treatment. temperature. holding time, and cooling rate. In both crystallization processes front the glass and melt, the Li7P3S11 crystal was precipitated as a primary phase from supercooled liquids and thus the superionic conducting Li7P3S11 crystal is a high temperature phase at the composition 70Li(2)S center dot 30P(2)S(5). (C) 2010 The Ceramic Society of Japan All rights reserved