| PVDF-HFP基复合多孔聚合物电解质膜的研制 |
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| 引用本文： | 顾大明,刘辉,高农.PVDF-HFP基复合多孔聚合物电解质膜的研制[J].材料科学与工艺,2009,17(2):259-262. |
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| 作者姓名： | 顾大明 刘辉 高农 |
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| 作者单位： | 顾大明,GU Da-ming(哈尔滨工业大学,化学系,哈尔滨,150001);刘辉,LIU Hui(哈尔滨工业大学,化学系,哈尔滨,150001;黑龙江工程学院现代教育技术中心,哈尔滨150050);高农,GAO Nong(黑龙江工程学院,电子工程系,哈尔滨,150050)
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| 基金项目： | 哈尔滨科技局优秀学科带头人基金，黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 聚偏氟乙烯-六氟丙烯共聚物(PVDF-HFP)多微孔膜在锂离子电池领域中具有很好的应用前景.采用Bellcore制膜法,用纳米材料对PVDF-HFP为基质的聚合物微孔膜材料进行了改性.利用XRD,SEM,交流阻抗等测试手段对电解质膜的晶体结构、微观形貌、电化学性能等进行了表征.结果表明:改性后聚合物电解质膜的孔隙率增加、结晶度降低,PVDF-HFP/SiO2和PVDF-HFP/Al2O3聚合物电解质隔膜的电导率(20℃)分别达到2.762×10-3S/cm和3.517×10-3S/cm,相应的离子迁移数分别为0.80和0.82.
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| 关 键 词： | 聚偏氟乙烯-六氟丙烯共聚物 电解质膜 纳米粒子 离子电导率 离子迁移数 |
Preparation of PVDF-HFP matrix complex micro-porous polymer electrolyte membrane |
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| GU Da-ming,LIU Hui,GAO Nong.Preparation of PVDF-HFP matrix complex micro-porous polymer electrolyte membrane[J].Materials Science and Technology,2009,17(2):259-262. |
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| Authors: | GU Da-ming LIU Hui GAO Nong |
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| Affiliation: | 1.Dept.of Applied Chemistry;Harbin Institute of Technology;Harbin 150001;China;2.Modern Education Technique Center;Heilongjiang Institute of Technology;Harbin 150050;3.Dept.of Electromechanical Engineering Heilongjiang Institute of Technology;China |
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| Abstract: | PVDF-HFP matrix micro-porous membrane has promising application in the field of lithium-ion secondary batteries.Nanometer materials were used to modify the PVDF-HFP matrix micro-porous polymer electrolyte membrane by dint of Bellcore method.The crystal structure,micro-morphology and electrochemical properties of this electrolyte membrane were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),electrochemical impedance spectra(EIS),and steady state current method.The results indicated ... |
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| Keywords: | PVDF-HFP electrolyte membrane nanometer particles ionic conductivity ion transference numbers |
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