Thermal, Mechanical and Electrical Properties of the PEO-based Solid Polymer Electrolytes Filled by Yttrium Oxide Nanoparticles

武汉理工大学学报-材料科学版(英文版), 2012, (3): 495-500. doi: 10.1007/s11595-012-0491-6

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Research Center for Materials Science & Engineering, Xiangfan University, Xiangyang 441053, China; College of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an 710049, China

2.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

3.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

4.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

5.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

6.College of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an 710049, China;College of Textile and Materials, Xi'an Polytechnic University,Xi'an 710049, China

基金项目: the Key Project of Science and Technology Research of Ministry of Education(208089) the National Natural Science Foundation of China(51003082) the Educational Commission of Hubei Province(Q20101606) the Natural Science Foundation of Hubei Province(2007ABA075) the Young Outstanding Talent Foundation of Hubei Province(2008CDB261)

Thermal, Mechanical and Electrical Properties of the PEO-based Solid Polymer Electrolytes Filled by Yttrium Oxide Nanoparticles

LIANG Guijie ^1, , XU Jie ^2, , XU Weilin ^3, , SHEN Xiaolin ^4, , BAI Zhikui ^5, , YAO Mu ^6,

1.Research Center for Materials Science & Engineering, Xiangfan University, Xiangyang 441053, China; College of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an 710049, China

2.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

3.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

4.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

5.Key Lab of Green Processing & Functional Textiles of New Textile Materials,Ministry of Education, Wuhan Textile University, Wuhan 430073, China

6.College of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an 710049, China;College of Textile and Materials, Xi'an Polytechnic University,Xi'an 710049, China

Keywords： solid polymer electrolytes

The novel composite lithium solid polymer electrolytes (SPEs) composed of polyethylene oxide (PEO) matrix and yttrium oxide (Y2O3) nanofillers were prepared by a solution casting method.The crystal morphology of the SPEs was characterized by polarized optical microscope (POM) and wide-angle X-ray diffraction (WAXD).The induced nucleation and steric hindrance effects of Y203 nanofillers result in the increased amount as well as decreased size of PEO sphemlites which are closely related to the crystallinity of the SPEs.As the Y2O3 contents increase from 0 wt％ to 15 wt,the crystallinity of the SPEs decreases proportionally.The thermal,mechanical and electrical properties of the SPEs were investigated by thermal gravimetric analysis (TGA),dynamic mechanical analysis (DMA) and AC impedance method,respectively.The physical properties including thermal,mechanical and electrical performances,depending remarkably on the polymer-filler interactions between PEO and Y2O3 nanoparticles,are improved by different degrees with the increase of Y2O3 contents.The (PEO)21Lii/10 wt％Y2O3 composite SPE exhibits the optimal room-temperature ionic conductivity of 5.95×10-5 S*cm-1,which satisfies the requirements of the conventional electrochromic devices..

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材料期刊网

Thermal, Mechanical and Electrical Properties of the PEO-based Solid Polymer Electrolytes Filled by Yttrium Oxide Nanoparticles

参考文献