Structure and properties of Li2S–P2S5–P2S3 glass and glass–ceramic electrolytes
Structure and properties of Li2S–P2S5–P2S3 glass and glass–ceramic electrolytes
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DOI：
10.1016/j.jpowsour.2008.09.044
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发表时间：
2009-04
影响因子：
9.2
通讯作者：
Keiichi Minami;A. Hayashi;S. Ujiie;M. Tatsumisago
中科院分区：
文献类型：
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作者：
Keiichi Minami;A. Hayashi;S. Ujiie;M. Tatsumisago
采用机械球磨法制备了高锂离子导电性的70Li2S·(30−x)P2S5.xP2S3(摩尔分数)玻璃和微晶玻璃。在组成为0≦x≦10的范围内获得了玻璃，P2S3取代P2S5促进了玻璃中P2S64−单元的形成。玻璃的电导率随P_2S_3含量的增加而增加，当P_2S_3含量达到5mol%时，玻璃的室温电导率为1×10−~4Scm−~1。在微晶玻璃中，电导率随P_2S_3含量的增加而增加，当P_2S_3含量达到1mol%时，Li7P_3S_(11)晶相在微晶玻璃中析出。当P_2S_3的摩尔分数为1%时，微晶玻璃的室温电导率最高，为3.90×10~(-3)−~(-3)−~(-1)。
High lithium ion conducting 70Li2S·(30−x)P2S5·xP2S3(mol%) glasses and glass–ceramics were prepared by the mechanical milling method. Glasses were obtained in the composition range of 0≦x≦10. The substitution of P2S3for P2S5promoted the formation of the P2S64−units in the glasses. The conductivity of the glass increased with an increase in P2S3contents up to 5mol% and the glass with 5mol% of P2S3showed the conductivity of 1×10−4Scm−1at room temperature. In the case of glass–ceramics, the conductivity increased with an increase in P2S3contents up to 1mol%, and the superionic conducting Li7P3S11crystal was precipitated in the glass–ceramic. The glass–ceramic with 1mol% of P2S3showed the highest conductivity of 3.9×10−3Scm−1at room temperature.