Study on Ion-conductive Dynamics in Poly (ethylene oxide)<sub>10</sub>: LiClO<sub>4</sub> Electrolyte Using Two-dimensional Correlation FTIR

Ji-liang WANG; Li-xia BAO; Jun XIANG; Jing-xin LEI

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Study on Ion-conductive Dynamics in Poly (ethylene oxide)₁₀: LiClO₄ Electrolyte Using Two-dimensional Correlation FTIR

更新时间：2022-09-18

- Study on Ion-conductive Dynamics in Poly (ethylene oxide)₁₀: LiClO₄ Electrolyte Using Two-dimensional Correlation FTIR
- Polymer Bulletin Vol. 26, Issue 9, Pages: 184-190(2013)
- 作者机构：
  
  1.四川大学高分子材料工程国家重点实验室，成都　610065
  2.云南大学自然资源与药物化学教育部重点实验室，昆明　650091
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013-09，
  
  Received：01 June 2013，
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Ji-liang WANG, Li-xia BAO, Jun XIANG, Jing-xin LEI. Study on Ion-conductive Dynamics in Poly (ethylene oxide)₁₀: LiClO₄ Electrolyte Using Two-dimensional Correlation FTIR. [J]. Polymer Bulletin 26(9):184-190(2013)
DOI：

Ji-liang WANG, Li-xia BAO, Jun XIANG, Jing-xin LEI. Study on Ion-conductive Dynamics in Poly (ethylene oxide)₁₀: LiClO₄ Electrolyte Using Two-dimensional Correlation FTIR. [J]. Polymer Bulletin 26(9):184-190(2013) DOI：

摘要

以聚氧化乙烯/LiClO

为聚合物固体电解质(SPE)模型化合物

采用广义二维相关分析红外光谱技术

系统地研究了常温及时间扰动条件下SPE中锂离子载流子在外电场作用下的传输行为。在610~660及1060~1160cm

-1

范围内的二维相关红外光谱研究结果表明

锂离子在外电场作用下的迁移过程伴随与ClO

-1

及C—O—C大分子配体的解配位及再配位相互作用

且这种解配位与再配位主要是通过与SPE内的ClO

-1

及PEO大分子配体中的C—O—C作用来实现。SPE中ClO

-1

离子及PEO大分子配体在电场作用下将由弱配位状态优先转变为紧密配位状态。

Abstract

Dynamic information regarding coordination and dissociation effects deriving from the migration of ions in poly (ethylene oxide)

:LiClO

electrolyte under an external DC electric field has been studied by a generalized two-dimensional correlation Fourier transform infrared spectroscopy (2D FTIR COS) at 30℃. The results show that the migration of both lithium cations and ClO

-1

anions is a complicated process coupling the change of both the form and appearance sequence of carriers under the electric field

which is apparently different from that without electric field. The ionic conduction of the electrolyte under the electric field can be divided into the dissociation of coordinated ions and the diffusion of free carriers

and the activation energy of dissociation (E

) and diffusion (E

) is the function of perturbation and forms of ligands.

关键词

聚合物固体电解质二维相关红外光谱离子传导动力学

Keywords

Solid polymer electrolyte2D-Correlation FTIRIonic conductionDynamics

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Related Institution

College of Material Science and Engineering, Zhengzhou University

Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry and School of Physics, Nankai University

School of Materials Science and Engineering, Tongji University;Key Laboratory of Advanced Civil Engineering Materials,Ministry of Education,School of Materials Science and Engineering, Tongji University, Cao An Road

Institute of Polymer, Northwest Normal University, Gansu Key Laboratory of Polymer Materials

Guilin Medical College

⁰

Study on Ion-conductive Dynamics in Poly (ethylene oxide)10: LiClO4 Electrolyte Using Two-dimensional Correlation FTIR

DOI：

摘要

Abstract

关键词

Keywords

references

Study on Ion-conductive Dynamics in Poly (ethylene oxide)₁₀: LiClO₄ Electrolyte Using Two-dimensional Correlation FTIR