高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (12): 2375.

• 研究论文 • 上一篇    下一篇

以脲和硫氰酸盐为主体的高分子固体电解质的研究

王志银, 何云华   

  1. 陕西理工学院化学系, 汉中723000
  • 收稿日期:2001-09-05 出版日期:2002-12-24 发布日期:2002-12-24
  • 通讯作者: 王志银(1962年出生),男,硕士,副教授,主要从事无机热力学及功能配合物合成研究.E-mail:Wzy@htu.net.cn E-mail:Wzy@htu.net.cn
  • 基金资助:

    汉中师范学院科研基金(批准号:XY9908)资助

Studies on New Polymeric Solid Electrolytes Based on Urea and Thiocyanate

WANG Zhi-Yin, HE Yun-Hua   

  1. Department of Chemistry, Shaanxi University of Technology, Hanzhong 723000, China
  • Received:2001-09-05 Online:2002-12-24 Published:2002-12-24

摘要: 在熔盐体系相图指导下研制出以脲和硫氰酸铵(钾)为主体的高分子固体电解质(PSE),其室温电导率分别为1.20×10-2和2.65×10-3S/cm.考察了影响该PSE电导率的因素,讨论了PSE的导电机理.结果表明,所研制的PSE为无定形固熔体,主要通过硫氰酸盐的电离导电,电导率-温度关系服从VTF方程.

关键词: 高分子固体电解质, 固熔体, 脲, 硫氰酸铵, 硫氰酸钾, 离子电导率

Abstract: The new polymeric solid electrolytes (PSE) based on urea(carbamide) and NH4SCN(KSCN) were synthesized. Their ionic conductivity is higher than 1.20×10-2 S/cm(2.65×10-3 S/cm) at room temperature. The main factors influencing the ionic conductivity were analyzed. The conductivity mechanism of PSE were disscused. The results show that the PSE are amorphous solid solution and the main conductance is NH4SCN(KSCN), which can ionize and conduct in the PSE, and the conductivity of PSE obeyed the VTF equation in the temperature range from 20 to 85 ℃.

Key words: Polymer solid electrolyte, Solid solution, Urea, Ammonium thiocyanate, Potassium thiocyanate, Ionic conductivity

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