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首页> 外文期刊>Journal of Materials Science. Materials in Electronics >Synthesis and characterization of new glasses based on Li_2S-P_2S_5-Sb_2S_3 system
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Synthesis and characterization of new glasses based on Li_2S-P_2S_5-Sb_2S_3 system

机译:基于Li_2S-P_2S_5-Sb_2S_3系统的新型玻璃的合成与表征

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There is great interest in sulfide glasses because of their high lithium ion conductivity. New sulfide glasses based on Li_2S-P_2S_5-Sb_2S_3 system have been synthesized by a classical quenching technique. A summary of thermal and structural characterization is presented. Electrical conductivities of the samples have been determined by Impedance Spectroscopy. The compositions of low lithium content (below 20% mol) have presented low electronic conductivities close to 10~(-8) S/cm at room temperature. The compositions of medium lithium content (30-50% mol) have presented mixed ionic-electronic behavior with predominant on ionic conductivity with a maximum values around 10~(-6) S/cm for samples up to 50% Li_2S at room temperature. Arrhenius behavior is verified between 25℃ and T_g for all glasses with activation energies about 0.55-0.64 eV. A comparative study of conductivities with glasses belonging to the other chalcogenide systems has been undertaken. batteries. Recently, we reported the synthesis and thermal properties of the Li_2S-P_2S_5-Sb_2S_3 co-former sulfide glass system. Here, we report a study of their conductivities and the results of attempts to improve the ionic conductivity of Li_2S-P_2S_5-Sb_2S_3 glasses by doping with LiI and Li_3PO_4.
机译:由于硫化物玻璃具有很高的锂离子传导性,因此引起了极大的兴趣。通过经典的淬火技术合成了基于Li_2S-P_2S_5-Sb_2S_3体系的新型硫化玻璃。总结了热和结构特征。样品的电导率已经通过阻抗光谱法确定。锂含量低(低于20%mol)的组合物在室温下具有接近10〜(-8)S / cm的低电子电导率。锂含量中等(30-50%mol)的组合物具有混合的离子电子行为,主要表现为离子电导率,在室温下,最高50%Li_2S的样品的最大值约为10〜(-6)S / cm。对于所有活化能约为0.55-0.64 eV的玻璃,Arrhenius行为均在25℃至T_g之间进行了验证。已经对属于其他硫属化物系统的玻璃的电导率进行了比较研究。电池。最近,我们报道了Li_2S-P_2S_5-Sb_2S_3共形成硫化物玻璃体系的合成和热性能。在这里,我们报告了其电导率的研究以及通过掺杂LiI和Li_3PO_4来改善Li_2S-P_2S_5-Sb_2S_3玻璃的离子电导率的结果。

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