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首页> 外文期刊>Journal of nanoscience and nanotechnology >Electrochemical Properties According to the Particle Size Effect of Poly(ethylene oxide)-Poly(propylene oxide)-Poly(ethylene oxide) Triblock Copolymer Electrolyte
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Electrochemical Properties According to the Particle Size Effect of Poly(ethylene oxide)-Poly(propylene oxide)-Poly(ethylene oxide) Triblock Copolymer Electrolyte

机译：电化学性质根据聚（环氧乙烷）-poly（环氧丙烷）-poly（环氧丙烷）三嵌段共聚物电解质的粒度效应

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摘要

The electrolyte of lithium secondary batteries is an important component. Among lithium secondary batteries, the lithium polymer battery, which has similar performance to the lithium secondary battery, is made of a solid polymer electrolyte. Lithium ions in a solid polymer electrolyte exist in the form of a solution by a polar group in a polymer matrix. Lithium ions in the solid polymer electrolyte migrate via the segmental motion of the polymer. That is, the properties of a polymer matrix in a solid polymer electrolyte can affect the conduction of lithium ions. Therefore, this study focused on the electrochemical properties of poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) copolymer-based solid polymer electrolyte. For this, poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) copolymer-based solid polymer electrolytes, which have spherical micelles, and various sizes of poly(ethylene oxide)-block-poly(propylene oxide)block-poly(ethylene oxide) copolymer micelle, were prepared. Amino acids were added to the poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) copolymer-based solid polymer electrolyte as an ion dissociator to assist in the dissociation of a lithium salt and increase the ionic conductivity of the solid polymer electrolyte. The copolymer-based solid polymer electrolytes was characterized by Fourier transform infrared spectroscopy, transmission electron microscopy, impedance analysis, cyclic voltammetry, and linear sweep voltammetry.
机译：锂二次电池的电解质是一个重要的组成部分。中的锂二次电池，锂聚合物电池，它具有类似的性能的锂二次电池，由固体聚合物电解质的。锂离子在聚合物基质中的由极性基团的溶液的形式的固体聚合物电解质存在。锂离子经由该聚合物的链段运动的固体高分子电解质迁移。也就是说，在固体高分子电解质的高分子基体的性质可以影响锂离子的传导。因此，本研究集中于聚（环氧乙烷） - 嵌段 - 聚（环氧丙烷） - 嵌段 - 聚（环氧乙烷）共聚物系固体高分子电解质的电化学性能。为此，聚（环氧乙烷） - 嵌段 - 聚（环氧丙烷） - 嵌段 - 聚（环氧乙烷）共聚物基的固体聚合物电解质，其具有球形胶束，和聚（环氧乙烷） - 嵌段 - 聚各种尺寸（氧化丙烯）嵌段 - 聚（环氧乙烷）共聚物胶束，制备。氨基酸加入到聚（环氧乙烷） - 嵌段 - 聚（环氧丙烷） - 嵌段 - 聚（环氧乙烷）共聚物系固体高分子电解质作为离子离解器以协助锂盐的离解和提高离子固体聚合物电解质的导电性。基于共聚物的固体聚合物电解质的特点是傅里叶变换红外光谱，透射电子显微镜，阻抗分析，循环伏安法，和线性扫描伏安法。

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