| 介孔材料SBA-15改性的复合凝胶聚合物电解质的制备及性能 |
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| 引用本文： | 李秀琴,王先友,李娜,曹俊琪,胡涛.介孔材料SBA-15改性的复合凝胶聚合物电解质的制备及性能[J].功能高分子学报,2008,21(3). |
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| 作者姓名： | 李秀琴 王先友 李娜 曹俊琪 胡涛 |
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| 作者单位： | 湘潭大学化学学院,湖南湘潭,411105 |
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| 摘 要： | 以聚(甲基丙烯酸甲酯-聚乙二醇二甲基丙烯酸酯)(P(MMA-PEGDMA))共聚物为基体,介孔硅分子筛SBA-15为无机填料制备了复合凝胶聚合物电解质.采用原子力显微镜(AFM)、热重分析(TG)和交流阻抗(AC)等技术对其形貌、热稳定性及电化学性能进行了研究.结果表明:无机填料SBA-15与聚合物基体有较好的相容性;SBA-15的加入改善了聚合物电解质的热稳定性,提高了离子电导率,当W(SBA-15)=0.03时,离子电导率达最大值3.68×lO-3S/cm;并且掺杂SBA-15后,聚合物电解质的电化学稳定性得到了提高,其电化学稳定窗口为4.9V(vs Li /Li),可满足高性能锂离子电池的要求.
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| 关 键 词： | 聚合物电解质 离子电导率 电化学窗口 交流阻抗 |
Preparation and Characteristics of Composite Gel Polymer Electrolyte Modified by Mesoporous Silica SBA-15 |
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| LI Xiu-qin,WANG Xian-you,LI Na,CAO Jun-qi,HU Tao.Preparation and Characteristics of Composite Gel Polymer Electrolyte Modified by Mesoporous Silica SBA-15[J].Journal of Functional Polymers,2008,21(3). |
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| Authors: | LI Xiu-qin WANG Xian-you LI Na CAO Jun-qi HU Tao |
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| Institution: | LI Xiu-qin,WANG Xian-you,LI Na,CAO Jun-qi,HU Tao(School of Chemistry,Xiangtan University,Xiangtan 411105,Hunan,China) |
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| Abstract: | A novel composite gel polymer electrolyte using mesoporous silica SBA-15 as the filler was(developed.) The structure,morphology and conductivity of composite gel polymer electrolyte were studied by atom force microscopy(AFM),thermogravimetric analyzer(TG) and alternating current(AC) impe-(dance) spectroscopy.The experiment results show that SBA-15 can increase the thermal stability and(enhance) the ionic conductivity.The excellent ionic conductivity and broad electrochemical stability window(4.9 V) suggest ... |
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| Keywords: | SBA-15 |
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