Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 24, Pages 12393-12399Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta02291c
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Funding
- National Natural Science Foundation of China [11375019]
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We demonstrated a one-step synthesis method for a novel gel polymer electrolyte (named PDMP-Li GPE) based on 3-(dimethylamino) propyl methacrylate, poly(ethylene glycol) diacrylate and 1 M LiPF6 liquid electrolyte solution by a gamma-radiation technique for lithium-ion batteries. The resultant PDMP-Li GPE exhibited good thermal stability, excellent mechanical strength and high ionic conductivity, and the highest ionic conductivity reached 8.88 x 10(-3) S cm(-1) at 25 degrees C. The LiFePO4/PDMP-Li GPE/graphite pouch-type cell exhibited more than 97% columbic efficiency and the capacity retention was about 86% after 50 cycles at 0.1C. With these outstanding characteristics, it is expected to be a promising candidate for the application in polymer lithium-ion batteries.
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