Journal
ELECTROCHIMICA ACTA
Volume 247, Issue -, Pages 505-515Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.07.048
Keywords
gel polymer electrolyte; lignocellulose; polyethylene glycol; mechanical property
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Funding
- Key Fund Project of Sichuan Provincial Department of Education [15ZA0050]
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A novel gel polymer electrolyte (GPE) based on polyethylene glycol (PEG) composite lignocellulose (LC) with compact structure for application in lithium ion batteries (LIBs) is prepared. The GPE membrane dramatically enhances mechanical properties, and displays as high as 3-4 times than that of pure LC when adopting 30% PEG-1000. Meanwhile, the increased liquid electrolyte uptake is obtained (267%), and caused high ionic conductivity (3.22 mS cm(-1)) at room temperature. Moreover, the lithium ion transference number is as high as 0.81, much higher than most of reported separators, and shows good thermal and electrochemical stability. The rate and cycling performances further confirm that the GPE a very promising candidate for LIBs. (C) 2017 Elsevier Ltd. All rights reserved.
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