| 锂离子电池用聚合物电解质的制备与性能研究 |
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| 引用本文： | 冯庆,冯生,潘春跃,巢猛,杨文波,刘珺,郑瑛.锂离子电池用聚合物电解质的制备与性能研究[J].稀有金属材料与工程,2008(Z4). |
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| 作者姓名： | 冯庆 冯生 潘春跃 巢猛 杨文波 刘珺 郑瑛 |
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| 作者单位： | 西北有色金属研究院;中南大学; |
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| 摘 要： | 通过原位复合法制备了PEO/LiClO4/SiO2聚电解质膜,采用TEM、XRD、交流阻抗法和充放电测试等研究了粒子的分布状态、聚合物电解质膜的结晶行为及组装成电池的充放电行为。结果表明,原位生成的SiO2粒子分布均匀,抑制了聚合物电解质的结晶,以此膜为电解质组装的全固态聚合物锂电池首次充电电压平台在4.2V左右,放电中值电压为3.6V,初始充电比容量为130mAh·g-1,50次循环后放电容量保持在84mAh·g-1。
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| 关 键 词： | 聚合物锂离子电池 原位复合 聚合物电解质 充放电 SiO2 |
Preparation and Characterization of Polymer Electrolyte for Lithium-Ion Battery |
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| Abstract: | The PEO/LiClO4/SiO2 composite polymer electrolyte films were prepared by in-situ method. The particles morphology, the crystallization and electrochemical properties of the films were studied using TEM, electrical impedance spectroscopy and charge-discharge, respectively. The results show that the in-situ formed SiO2 particles uniformly disperse in PEO matrix and the SiO2 restrains the crystallization of polymer electrolyte. The polymer lithium ion battery with the electrolyte films exhibits stable discharg... |
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| Keywords: | polymer lithium ion battery in situ composite polymer electrolyte charge-discharge SiO2 |
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