| 新型锂离子电池聚合物电解质的制备 |
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| 引用本文： | 任旭梅,顾辉,陈立泉,吴锋,黄学杰. 新型锂离子电池聚合物电解质的制备[J]. 高等学校化学学报, 2002, 23(7): 1383-1385 |
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| 作者姓名： | 任旭梅 顾辉 陈立泉 吴锋 黄学杰 |
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| 作者单位： | 1. 北京理工大学化工与材料学院, 北京 100081;2. 中国科学院物理研究所, 固态离子实验室, 北京 100080 |
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| 基金项目： | 国家 8 63新材料领域项目 (批准号 :2 0 0 1AA3 2 3 0 3 2 ) |
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| 摘 要： | 应用倒相法,以PVDF-HFP(偏氟乙烯-六氟丙烯)的混合物为基体制备锂离子电池电解质基质,制得的多孔PVDF基质薄膜具有优良的化学性能及机械性能,其拉伸强度为102kg/cm2,吸附锂离子电池电解液(1mol/LLiPF6的EC/DEC溶液)的能力达到自身重量的350%以上,吸液后其室温电导率在10-3S/cm以上,用它组装成原理电池以后呈现了良好的电化学性能.
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| 关 键 词： | 锂离子电池 聚合物电解质 PVDF 倒相法 |
| 文章编号： | 0251-0790(2002)07-1383-03 |
| 收稿时间： | 2000-05-19 |
Preparation of Polymer Electrolyte for Lithium-ion Battery |
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| REN Xu Mei ,GU Hui ,CHEN Li Quan ,WU Feng ,HUANG Xue Jie. Preparation of Polymer Electrolyte for Lithium-ion Battery[J]. Chemical Research In Chinese Universities, 2002, 23(7): 1383-1385 |
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| Authors: | REN Xu Mei GU Hui CHEN Li Quan WU Feng HUANG Xue Jie |
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| Affiliation: | 1. School of Chemical Engineering and Materials Science, Beijing Institute of Technology, Beijing 100081, China;2. Laboratory for Solid State Ionics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | With the final goal of developing lithium ion batteries having a plastic configuration, we have characterized a high conducting microporous PVDFplastic electrolyte for lithium ion batteries prepared by using the phase inversion process. Gel polymer electrolyte composed of PVDF-based microporous membrane, LiPF6-EC/DECshow a high ionic conductivity (above 10-3S/cm at room temperature), and good mechanical properties(102 kg/cm2). The half cells consisting of Li/GPE/MCMBshow excellent cycling characteristics and the stable discharge capacity is 306 mA·h/g. At a current density of 1.0 mA·h/cm2(0.5 C), the cell was shown to retain 79% of initial capacity after 100 cycles. |
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| Keywords: | Lithium ion battery Polymer electrolyte PVDF Phase inverse |
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