HYDROSTATIC PRESSURE EFFECT ON COMPLEX IMPEDANCE SPECTRA AND DIELECTRIC CONSTANT OF SOSID ELECTROLYTE OF HIGH POLYMER P(EO) n CuBr 2

SU Fang; XIE Bin; WANG Wenlou

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HYDROSTATIC PRESSURE EFFECT ON COMPLEX IMPEDANCE SPECTRA AND DIELECTRIC CONSTANT OF SOSID ELECTROLYTE OF HIGH POLYMER P(EO) n CuBr 2

Research Article | 更新时间：2021-03-19

- HYDROSTATIC PRESSURE EFFECT ON COMPLEX IMPEDANCE SPECTRA AND DIELECTRIC CONSTANT OF SOSID ELECTROLYTE OF HIGH POLYMER P(EO) n CuBr 2
- Acta Polymerica Sinica Issue 6, Pages: 650-659(1996)
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- Published：20 December 1996，
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SU Fang, XIE Bin, WANG Wenlou. HYDROSTATIC PRESSURE EFFECT ON COMPLEX IMPEDANCE SPECTRA AND DIELECTRIC CONSTANT OF SOSID ELECTROLYTE OF HIGH POLYMER P(EO) n CuBr 2. [J]. Acta Polymerica Sinica (6):650-659(1996)
DOI：

SU Fang, XIE Bin, WANG Wenlou. HYDROSTATIC PRESSURE EFFECT ON COMPLEX IMPEDANCE SPECTRA AND DIELECTRIC CONSTANT OF SOSID ELECTROLYTE OF HIGH POLYMER P(EO) n CuBr 2. [J]. Acta Polymerica Sinica (6):650-659(1996) DOI：

摘要

采用分子量５００万的聚氧化乙烯和无水溴化铜

通过混溶蒸发法制备成高聚物固体电解质Ｐ（ＥＯ）ｎ－ＣｕＢｒ２薄膜

并在０．１～３００ＭＰａ范围不同的流体静水压下详细测量其复平面阻抗谱

分别得到在不同压力下离子电导率和介电常数与测量频率的关系．进一步解谱准确地求出Ｐ（ＥＯ）ｎ－ＣｕＢｒ２（ｎ＝１２、１６）薄膜离子电导率和介电常数的静水压效应

并结合Ｘ－光物相分析

根据离子迁移通道的物理图象和高聚物的极化机构进行了初步的讨论．添加２０％的增塑剂碳酸丙烯酯

较大改进了压力下的导电性．１２０～３００ＭＰａ的离子电导率提高一个数量级

Abstract

By adding different weight of CuBr 2(ratio n=/=24

4)in Polyoxyethylene(molecular weight=5×10 6)

We prepared a series of high polymer film of solid electrolyte T(EO) n-CuBr 2 with the method of mixed solution and evaporation in vacuum.Their complex impedance spectra were measured in detail at different hydrostatic pressure in the range from 0.1MPa to 300MPa.Through further spectra decomposition the dependence of ionic conductivity(or dielectric constant)on measuring frequency under different pressure was obtained respenctively.As a result of spectra analysis

the variation of ionic conductivity and dielectric constant with hydrostatic pressure in P(EO)n-CuBr2 film was calculated precisely.On the basis of X-Ray diffraction

above mentioned pressure effects were discussed tentatively according to the physical picture of ionic transport -passage and polarization mechanism of high polymer.Adding the plasticizers

propylene carbonate(CH3-CH-OCH2-OC=O

C4H6O3)with concentration of mol.ratio npc/ntotal=20% can enhance ionic conductivity under 120～300MPa one order of magnitude.

关键词

高聚物固体电解质复平面阻抗谱离子电导率介电常数流体静压力

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