Journal
IONICS
Volume 17, Issue 6, Pages 485-490Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-011-0541-7
Keywords
Polymer blend electrolyte; Solution casting; Ionic conductivity; Filler
Funding
- University of Malaya [PS098/2009C]
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Li-ion rechargeable batteries based on polymer electrolytes are of great interest for solid state electrochemical devices nowadays. Many studies have been carried out to improve the ionic conductivity of polymer electrolytes, which include polymer blending, incorporating plasticizers and filler additives in the electrolyte systems. This paper describes the effects of incorporating nano-sized MnO2 filler on the ionic conductivity enhancement of a plasticized polymer blend PMMA-PEO-LiClO4-EC electrolyte system. The maximum conductivity achieved is within the range of 10(-3) S cm(-1) by optimizing the composition of the polymers, salts, plasticizer, and filler. The temperature dependence of the polymer conductivity obeys the VTF relationship. DSC and XRD studies are carried out to clarify the complex formation between the polymers, salts, and plasticizer.
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