中文摘要：

合成了纳米氢氧化镁作为聚氧化乙烯（PEO）基聚合物电解质的增塑剂和阻燃剂,并对其进行X射线衍射（XRD）、透射电子显微镜（TEM）和热重（TG）分析研究.制得的氢氧化镁为片状六方晶体,尺寸在50-80nm之间,纳米氢氧化镁在340℃时开始热分解.对纳米氢氧化镁/PEO复合聚合物电解质的电化学研究结果显示：纳米氢氧化镁/PEO复合聚合物电解质的离子电导率随着添加纳米氢氧化镁的质量分数的增加先增大后减小,其在5%-10%之间时,复合聚合物电解质的离子电导率达到最大值.纳米氢氧化镁的添加使复合聚合物电解质的阳极氧化电位有一定程度的提高,纳米氢氧化镁具有改善PEO阳极抗氧化能力的作用.

英文摘要：

We prepared nanosized hydroxide magnesium（Mg（OH）2） as a plasticizer and a flame-retarding additive for a poly（ethylene-oxide）（PEO） based polymer electrolyte.We characterized the prepared compound using transition electron microscopy（TEM）,X-ray diffraction（XRD）,and thermogravimetry（TG）.The prepared hydroxide magnesium particles are hexagonal crystals with sizes of 50-80 nm.The decomposition of the prepared nanosized hydroxide magnesium started at 340℃.Electrochemical measurements shows that the ionic conductivity of the Mg（OH）2/PEO composite polymer electrolytes（CPEs） increases initially and then decreases with an increase in hydroxide magnesium content.It reaches a maximum when the hydroxide magnesium mass fraction is between 5% and 10%.The anodic decomposition potential of the CPEs increases to a certain extent as the hydroxide magnesium content increases.Hydroxide magnesium has a positive influence on the electrochemical stability of PEO.