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- W3119380215 abstract "Solid polymer electrolytes are promising in fulfilling the requirements for a stable lithium metal anode toward higher energy and power densities. In this work, we investigate the segmental dynamics, ionic conductivity, and crystallinity of a polymer electrolyte consisting of poly(ethylene oxide) (PEO) and lithium triflate salt, in the semi-crystalline state. Using quasi-elastic neutron scattering, the segmental dynamics of PEO chains confined between the crystalline lamellae is quantified, using Cole–Cole analysis. We show that the structural relaxation time, τ 0 , of PEO equilibrated near room temperature is six-fold longer than the same sample that had just cooled down to room temperature. This corresponds to a three-fold smaller ionic conductivity in the equilibrated condition. This work reveals that the segmental dynamics of semi-crystalline polymer electrolytes is very sensitive to thermal history. We demonstrate that quasi-elastic neutron scattering can be used to characterize the ion transport and segmental dynamics in the semi-crystalline state." @default.
- W3119380215 created "2021-01-18" @default.
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- W3119380215 date "2021-01-13" @default.
- W3119380215 modified "2023-10-15" @default.
- W3119380215 title "Study of the Segmental Dynamics and Ion Transport of Solid Polymer Electrolytes in the Semi-crystalline State" @default.
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- W3119380215 doi "https://doi.org/10.3389/fchem.2020.592604" @default.
- W3119380215 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7838558" @default.
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