Journal
ELECTROCHIMICA ACTA
Volume 285, Issue -, Pages 355-364Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.08.012
Keywords
Lithium-sulfur battery; Lithium-polymer battery; Polymer electrolyte; Poly(ethylene oxide); Metal organic framework
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Funding
- Italian Ministry of Economic Development
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In this work, the possibility of employing aluminium terephthalic acid metal organic framework (Al-TPAMOF)-laden composite polymer membranes as electrolyte for all-solid-state lithium-sulfur (Li-S) and lithium-metal (Li-metal) polymer batteries is explored. The prepared composite polymer electrolytes (CPEs) based on a poly(ethylene oxide) (PEO) network with lithium bis(trifluoromethane)sulfonimide (LiTFSI) and Al-TPA-MOF are mechanically robust and thermally stable up to 270 degrees C, and provide appreciable ionic conductivity in the order of 0.1 mS cm(-1) at 60 degrees C. The enhanced compatibility of CPEs with the lithium metal anode is attributed to the scavenging effect of Al-TPA-MOF. Laboratory scale all-solid-state Li-S and Li-metal polymer cells are assembled, which deliver specific capacities exceeding 800 and 130 mAh g(-1), respectively, and a stable performance upon prolonged cycling even at 60 degrees C, which is superior to earlier reports on similar systems. (C) 2018 Elsevier Ltd. All rights reserved.
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