Journal article
Effects of a Block Copolymer as Multifunctional Fillers on Ionic Conductivity, Mechanical Properties, and Dimensional Stability of Solid Polymer Electrolytes
The journal of physical chemistry. B, Vol.114(43), pp.13637-13643
11/04/2010
Handle:
https://hdl.handle.net/2376/107827
PMID: 20936864
Abstract
Solid polymer electrolytes with high ionic conductivities, good mechanical properties, dimensional stability, and easy processability were obtained from poly(ethylene oxide)-block-polyethylene (PEO-b-PE)-loaded poly(ethylene oxide) (PEO)/lithium perchlorate (LiClO4). In this article, we reported that the ionic conductivity and mechanical properties were remarkably increased due to the addition of the PEO-b-PE compared to that of PEO/LiClO4 electrolyte. Scanning electron microscope (SEM), optical micrograph, and X-ray diffraction (XRD) results indicate that the addition of the copolymer, PEO-b-PE, decreased the defects of the PEO electrolyte films. Good dimensional stability was observed by dynamic rheological techniques up to 100 °C (higher than the melting point of PEO, 65 °C). A bicontinuous phase structure, that is crystalline PE domains within a matrix of PEO/salt, was proposed as the mechanism for such comprehensive enhancements in the ionic conductivity, mechanical properties, and dimensional stability obtained simultaneously in this study through a facile approach based on incorporation of a copolymer.
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Details
- Title
- Effects of a Block Copolymer as Multifunctional Fillers on Ionic Conductivity, Mechanical Properties, and Dimensional Stability of Solid Polymer Electrolytes
- Creators
- Jianying JiBin LiWei-Hong Zhong
- Publication Details
- The journal of physical chemistry. B, Vol.114(43), pp.13637-13643
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- American Chemical Society
- Identifiers
- 99900546953901842
- Language
- English
- Resource Type
- Journal article