| 添加无机粒子的P(VDF-HFP)-PMMA复合聚合物电解质的性能 |
| |
| 引用本文： | 张国庆,马莉,吴忠杰,饶中浩,倪佩.添加无机粒子的P(VDF-HFP)-PMMA复合聚合物电解质的性能[J].材料科学与工程学报,2009(5). |
| |
| 作者姓名： | 张国庆 马莉 吴忠杰 饶中浩 倪佩 |
| |
| 作者单位： | 广东工业大学材料与能源学院;东莞迈科科技有限公司; |
| |
| 摘 要： | 研究了以PP/PE/PP(聚丙烯/聚乙烯/聚丙烯)膜为支撑体,P(VDF-HFP)(聚(偏二氟乙烯-六氟丙烯))-PMMA(聚甲基丙烯酸甲酯)为聚合物基体,与纳米级SiO2、CaCO3进行复合构成的聚合物电解质膜(CPE)的性能。借助X射线衍射、电化学阻抗、电池的首次充放电、倍率放电和充放电循环测试,考察了复合聚合物电解质CPE(SiO2)和CPE(CaCO3)的结构以及它们与LiFePO4正极材料、金属锂的相容性。结果表明:无机粒子的加入没有改变原来聚合物P(VDF-HFP)-PMMA非晶结构;两种电解质构成的电池的首次充放电性能相差不大,但是循环性能后者优于前者;LiFePO4/CPE(CaCO3)/Li构成的电池的倍率放电性能、放电容量和容量保持率均优于LiFePO4/CPE(SiO2)/Li电池;CPE(CaCO3)与LiFePO4、金属锂的相容性更好。
|
| 关 键 词： | 锂离子电池 复合聚合物电解质 P(VDF-HFP)-PMMA 纳米SiO2 纳米CaCO3 |
Performance of Composite Polymer Electrolytes with Inorganic Particles on P(VDF-HFP)-PMMA |
| |
| ZHANG Guo-qing,MA Li,WU Zhong-jie,RAO Zhong-hao,NI Pei.Performance of Composite Polymer Electrolytes with Inorganic Particles on P(VDF-HFP)-PMMA[J].Journal of Materials Science and Engineering,2009(5). |
| |
| Authors: | ZHANG Guo-qing MA Li WU Zhong-jie RAO Zhong-hao NI Pei |
| |
| Affiliation: | ZHANG Guo-qing~1,MA Li~1,WU Zhong-jie~1,RAO Zhong-hao~1,NI Pei~2(1.Faculty of Material , Energy,Guangdong University of Technology,Guangzhou 510006,China,2.Dongguan McNair Technology Co.,Ltd.,Dongguan 523800,China) |
| |
| Abstract: | Performance of composite polymer electrolytes(CPEs),prepared by adding nano-scale SiO_2 and CaCO_3 respectively on P(VDF-HFP)-PMMA polymer matrix supported by PP/PE/PP membrane was investigated.By using X-ray diffractometry(XRD),electrochemical impedance spectroscopy(EIS),charge-discharge cycle,and discharge at different rates,structure of CPE(SiO_2) and CPE(CaCO_3) and their compatibility with LiFePO_4 cathode and metal Li anode materials were was studied. Results show that the CPEs are still amorphous str... |
| |
| Keywords: | Li-ion battery composite polymer electrolyte P(VDF-HFP)-PMMA nano-scale CaCO_3 nano-scale SiO_2 |
| 本文献已被 CNKI 等数据库收录！ |
|
