Journal
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
Volume 554, Issue -, Pages 221-231Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421406.2012.634329
Keywords
Acetic acid; gel polymer electrolyte; lithium perchlorate; sodium alginate
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The present study investigates gel polymer electrolytes (GPEs) based on sodium alginate plasticized with glycerol containing either CH3COOH or LiClO4. The membranes showed ionic conductivity results of 3.1 x 10(-4) S/cm for the samples with LiClO4 and 8.7x10(-5) S/cm for the samples with CH3COOH at room temperature. The samples also showed thermal stability up to 160 degrees C, transparency of up to 90%, surface uniformity and adhesion to glass and steel. Moreover, Dynamic Mechanical Analysis revealed two relaxations for both samples and the Ea values were between 18 and 36 kJ/mol. All the results obtained indicate that alginate-based GPEs can be used as electrolytes in electrochemical devices.
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