| 锂离子电池用增强型凝胶聚合物电解质 |
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| 引用本文： | 胡拥军,陈白珍,陈亚. 锂离子电池用增强型凝胶聚合物电解质[J]. 化工进展, 2009, 28(3): 449 |
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| 作者姓名： | 胡拥军 陈白珍 陈亚 |
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| 作者单位： | 湖南城市学院化学与环境工程系,湖南,益阳,413000;中南大学冶金科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家高技术研究发展计划(2003AA32X010);;湖南省自然科学基金重点项目(06B0023)资助 |
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| 摘 要： | 用相转移法制备无纺布增强型聚偏氟乙烯-六氟丙烯聚合物电解质，用扫描电子显微镜和循环伏安对所制聚合物膜性能进行表征，用充放电实验和交流阻抗测试聚合物电池的电化学性质。结果表明：无纺布增强后的聚合物电解质电化学稳定窗口超过5.0 V，室温离子电导率达到2.3 mS/cm，机械强度大幅度提高，以此制备的聚合物电池阻抗降低，充放电时界面阻抗稳定，循环性能得以提高。
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| 关 键 词： | 聚合物电解质 锂离子电池 相转移 交流阻抗 |
Reinforced gel-polymer electrolyte for Li-ion batteries |
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| HU Yongjun,CHEN Baizhen,CHEN Ya. Reinforced gel-polymer electrolyte for Li-ion batteries[J]. Chemical Industry and Engineering Progress, 2009, 28(3): 449 |
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| Authors: | HU Yongjun CHEN Baizhen CHEN Ya |
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| Affiliation: | Department of Chemistry，Hunan City University；School of Metallurgical Science and Engineering，Central South University |
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| Abstract: | Gel-polymer electrolyte based on poly(vinylidene)fluoride-hexafluoropropylene was prepared,and reinforced by non-woven fabrics.Polymer membrane morphology and electrochemical properties were characterized with scanning electron microscopy and cyclic voltammogram,and the polymer batteries were studied by charge-discharge tests and A.C.impedance.Experimental results showed that the electrochemical stability window of reinforced polymer electrolyte reached 5.0V,its ionic conductivity at room temperature is 2.3... |
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| Keywords: | polymer electrolyte Li-ion battery phase inversion A.C.impedance |
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