Skip to main content
placeholder image

Novel gel polymer electrolytes based on a cellulose ester with PEO side chains

Journal Article


Abstract


  • A range of gel electrolytes, composed of a hydroxypropylcellulose ester with poly(oxyethylene) side chains, LiCF3SO3 and propylene carbonate (PC), or a mixture of propylene carbonate with ethylene carbonate (EC), were prepared and studied. The conductivities of gels containing 10 wt.% LiCF3SO3, and having propylene carbonate concentrations varying from 20 to 70 wt.%, exhibit Arrhenius behaviour with activation energies ranging from 16 to 34 kJ mol-1. Room temperature conductivities of the order of 10-3 S cm-1 are achieved with propylene carbonate contents above 50 wt.%. Gels containing 70 wt.% propylene carbonate, or a mixtures of propylene carbonate and ethylene carbonate, were cross-linked to form elastomeric films exhibiting good mechanical properties and room temperature conductivities of ��� 10-3 S cm-1. The conductivities and mechanical strength of these films increased with increasing ethylene carbonate content. An Arrhenius dependence of log conductivity on (1/T) is also observed in these films, with activation energies for ion transport around 16 kJ mol-1. �� 2003 Elsevier Science B.V. All rights reserved.

Publication Date


  • 2003

Citation


  • Yue, Z., McEwen, I. J., & Cowie, J. M. G. (2003). Novel gel polymer electrolytes based on a cellulose ester with PEO side chains. Solid State Ionics, 156(1-2), 155-162. doi:10.1016/S0167-2738(02)00595-7

Scopus Eid


  • 2-s2.0-0037211435

Start Page


  • 155

End Page


  • 162

Volume


  • 156

Issue


  • 1-2

Place Of Publication


Abstract


  • A range of gel electrolytes, composed of a hydroxypropylcellulose ester with poly(oxyethylene) side chains, LiCF3SO3 and propylene carbonate (PC), or a mixture of propylene carbonate with ethylene carbonate (EC), were prepared and studied. The conductivities of gels containing 10 wt.% LiCF3SO3, and having propylene carbonate concentrations varying from 20 to 70 wt.%, exhibit Arrhenius behaviour with activation energies ranging from 16 to 34 kJ mol-1. Room temperature conductivities of the order of 10-3 S cm-1 are achieved with propylene carbonate contents above 50 wt.%. Gels containing 70 wt.% propylene carbonate, or a mixtures of propylene carbonate and ethylene carbonate, were cross-linked to form elastomeric films exhibiting good mechanical properties and room temperature conductivities of ��� 10-3 S cm-1. The conductivities and mechanical strength of these films increased with increasing ethylene carbonate content. An Arrhenius dependence of log conductivity on (1/T) is also observed in these films, with activation energies for ion transport around 16 kJ mol-1. �� 2003 Elsevier Science B.V. All rights reserved.

Publication Date


  • 2003

Citation


  • Yue, Z., McEwen, I. J., & Cowie, J. M. G. (2003). Novel gel polymer electrolytes based on a cellulose ester with PEO side chains. Solid State Ionics, 156(1-2), 155-162. doi:10.1016/S0167-2738(02)00595-7

Scopus Eid


  • 2-s2.0-0037211435

Start Page


  • 155

End Page


  • 162

Volume


  • 156

Issue


  • 1-2

Place Of Publication