Journal
RSC ADVANCES
Volume 6, Issue 39, Pages 32454-32461Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra01387b
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Funding
- National Natural Science Foundation of China [51172083, 51222210, 51472268]
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A novel single lithium-ion (Li-ion) conducting polymer electrolyte composed of lithium poly[(4-styrenesulfonyl)(fluorosulfonyl) imide] (LiPSFSI) and poly(ethylene oxide) (PEO) exhibits a high Li-ion transference number (t(Li)(+) = 0.90) and sufficient electrochemical stability for use in Li batteries. The ionic conductivities of the LiPSFSI/PEO blended polymer electrolytes are higher than those of the lithium poly(4-styrenesulfonate) (LiPSS)/PEO electrolyte and are comparable to those of the lithium poly[(4styrenesulfonyl)( trifluoromethanesulfonyl) imide] (LiPSTFSI)/PEO electrolyte in the temperature range of 25-90 degrees C. More importantly, the complex of LiPSFSI/PEO exhibits excellent interfacial compatibility with the Li metal electrode compared to both those of the LiPSS/PEO and LiPSTFSI/PEO electrolytes.
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