| 引用本文: | 高农,陈志刚,王淑堂,隋旭磊,顾大明.PEI-PEO基全固态电解质的性能[J].哈尔滨工业大学学报,2011,43(4):145.DOI:10.11918/j.issn.0367-6234.2011.04.029 |
| GAO Nong,CHEN Zhi-gang,WANG Shu-tang,SUI Xu-lei,GU Da-ming.Research on PEI-PEO based solid state polymer electrolyte[J].Journal of Harbin Institute of Technology,2011,43(4):145.DOI:10.11918/j.issn.0367-6234.2011.04.029 |
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| 摘要: |
| 聚氧乙烯(PEO)基全固态复合电解质可作为高能全固态锂电池的电解质膜材料.采用溶液浇铸法,以PEO为基质,LiClO4为锂盐,聚乙烯亚胺(PEI)和柠檬酸(CA)及无机纳米粉体(NCA)做性能改进剂,制备PEI-PEO-LiClO4-CA-NCA全固态复合聚合物电解质(SCPE)膜,对其进行X射线衍射(XRD)表征和交流阻抗(EIS)测试.结果表明,PEI和NCA等的加入降低了PEO的结晶度,大大提高材料的室温电导率.所制备的SCPE膜的室温(25℃)电导率达5×10-4 S.cm-1,具有很好的力学强度和柔韧性. |
| 关键词: 聚合物电解质 PEO PEI 电导率 |
| DOI：10.11918/j.issn.0367-6234.2011.04.029 |
| 分类号:O631.3 |
| 基金项目:哈尔滨市学科带头人基金项目(2007RFXXG014);黑龙江省教育厅科技项目(11531300) |
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| Research on PEI-PEO based solid state polymer electrolyte |
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GAO Nong1, CHEN Zhi-gang1, WANG Shu-tang2, SUI Xu-lei2, GU Da-ming2
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1.Department of Electronic Engineering,Heilongjiang Institute of Technology,150050 Harbin,China;2.School of Science,Harbin Institute of Technology,150001 Harbin,China
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| Abstract: |
| Polyethylene oxide(PEO)-based solid composite polymer electrolyte(SCPE) may be used as electrolyte material in high energy density all solid lithium batteries.The SCPE films made from PEI-PEO-LiClO4-CA-NCA were prepared using a solution casting method when PEO was used as matrix,LiClO4 as Li+donor,polyethylene imine(PEI),citric acid(CA),inorganic nano-powder(NCA),were used as properties improver.The products were characterized by X-ray diffraction(XRD) and the electrochemical impedance spectra(EIS) of the SCPE had been measured.The results show that the additives decrease the crystallinity of the SCPE films,improve the conductivity of the PEO-based SCPE.The conductivity of the SCPEreached 5×10-4 S·cm-1(25 ℃),while retaining a good mechanical strength and flexibility. |
| Key words: polymer electrolyte PEO PEI conductivity |
