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- W4382010538 abstract "Abstract The softness of sulfur sublattice and rotational PS 4 tetrahedra in thiophosphates result in liquid‐like ionic conduction, leading to enhanced ionic conductivities and stable electrode/thiophosphate interfacial ionic transport. However, the existence of liquid‐like ionic conduction in rigid oxides remains unclear, and modifications are deemed necessary to achieve stable Li/oxide solid electrolyte interfacial charge transport. In this study, by combining the neutron diffraction survey, geometrical analysis, bond valence site energy analysis, and ab initio molecular dynamics simulation, 1D liquid‐like Li‐ion conduction is discovered in LiTa 2 PO 8 and its derivatives, wherein Li‐ion migration channels are connected by four‐ or five‐fold oxygen‐coordinated interstitial sites. This conduction features a low activation energy (0.2 eV) and short mean residence time (<1 ps) of Li ions on the interstitial sites, originating from the Li–O polyhedral distortion and Li‐ion correlation, which are controlled by doping strategies. The liquid‐like conduction enables a high ionic conductivity (1.2 mS cm −1 at 30 °C), and a 700 h anomalously stable cycling under 0.2 mA cm −2 for Li/LiTa 2 PO 8 /Li cells without interfacial modifications. These findings provide principles for the future discovery and design of improved solid electrolytes that do not require modifications to the Li/solid electrolyte interface to achieve stable ionic transport." @default.
- W4382010538 created "2023-06-27" @default.
- W4382010538 creator A5004913564 @default.
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- W4382010538 creator A5080158449 @default.
- W4382010538 creator A5088037566 @default.
- W4382010538 creator A5088972801 @default.
- W4382010538 date "2023-08-15" @default.
- W4382010538 modified "2023-10-17" @default.
- W4382010538 title "Liquid‐Like Li‐Ion Conduction in Oxides Enabling Anomalously Stable Charge Transport across the Li/Electrolyte Interface in All‐Solid‐State Batteries" @default.
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