| Characterization of Ionic Conducting Cross-linked Polyether Electrolytes |
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| 引用本文： | CHEN Guorong SHI Pengfei BAI Yongping FAN Taibing. Characterization of Ionic Conducting Cross-linked Polyether Electrolytes[J]. 武汉理工大学学报(材料科学英文版), 2005, 20(4): 104-106. DOI: 10.1007/BF02841296 |
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| 作者姓名： | CHEN Guorong SHI Pengfei BAI Yongping FAN Taibing |
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| 作者单位： | Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China |
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| 摘 要： | An appropriate amount of toluene 2,4-diisocyanate（TDI） was added into polyether（[（CH2CH2O）13 CH2O]n/Li salt electrolyte to form a cross-linked network,with improving the film proces sability and thermal stability.The relation between the structure and ioinc conductive properties of the cross-lined polyether electrolytes was investigated by means of Fourier transform infra-red spectroscopy（FTIR）,differential scanning calorimetry（DSC）,mechanical property and AC impedance spectroscopy.The electrolytes system is found to have two glass transitions,and it is found that the two Tgs increase with increasing salt concentration.At the some Li salt concentration,the conductivity of cross-liked polyether/LiN（CF3SO2）2 complex system is higher than that of LiClo4,At EO/Li=25：1（mol ratio）,the former conductivity changes with temperature,while the later coincids with Arrhenius formula（σ=Ae^-Ea/RT）.The cross-linked polyether/LiN（CF3 SO2）2 electrolyte exhibits the maximum σ=10^-4.75S/cm at 30℃.
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| 关 键 词： | 聚合物电解液 离子电导率 玻璃相变 聚醚 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-09-25 |
Characterization of ionic conducting cross-linked polyether electrolytes |
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| Chen Guorong,Shi Pengfei,Bai Yongping,Fan Taibing. Characterization of ionic conducting cross-linked polyether electrolytes[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2005, 20(4): 104-106. DOI: 10.1007/BF02841296 |
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| Authors: | Chen Guorong Shi Pengfei Bai Yongping Fan Taibing |
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| Affiliation: | (1) Department of Applied Chemistry, Harbin Institute of Technology, 150001 Harbin, China |
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| Abstract: | An appropriate amount of toluene 2,4-diisocyanate (TDI) was added into polyether ([(CH2 CH2O)13CH2O]n)]Li salt electrolyte to form a cross-linked network, with improving the film processability and thermal stability. The relation between the structure and ionic conductive properties of the cross-lined polyether electrolytes was investigated by means of Fourier transform infra-red spectroscopy (FTIR), differential scanning calorimetry (DSC), mechanical property and AC impedance spectroscopy. The electrolytes system is found to have two glass transitions, and it is found that the two Tgs increase with increasing salt concentration. At the same Li salt concentration, the conductivity of cross-linked polyether/LiN(CF3SO2)2 complex system is higher than that of LiClO4. At EO/Li=25∶1(mol ratio), the former conductivity changes with temperature, while the later coincids with Arrhenius formula (σ=Ae−EalRT). The cross-linked polyether/LiN(CF3SO2)2 electrolyte exhibits the maximum σ=10−4.75 S/cm at 30°C. |
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| Keywords: | cross-linked polymer electrolyte ionic conductivity two glass transitions |
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