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SURFACE TREATMENT OF A SOLID ELECTROLYTE TO LOWER THE INTERFACIAL RESISTANCE BETWEEN THE SOLID ELECTROLYTE AND AN ELECTRODE
SURFACE TREATMENT OF A SOLID ELECTROLYTE TO LOWER THE INTERFACIAL RESISTANCE BETWEEN THE SOLID ELECTROLYTE AND AN ELECTRODE
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机译:表面处理固体电解质,降低固体电解质和电极之间的界面抗性
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摘要
Disclosed are electrochemical devices, such as sodium ion conducting solid state electrolytes, sodium battery electrodes, and solid-state sodium metal batteries including these electrodes and solid state electrolytes. One example method for preparing a sodium/sodium-β"-alumina interface with low interfacial resistance and capable of achieving high current density in an electrochemical cell includes the steps of: (a) providing a precursor electrolyte having a resistive surface region, wherein the precursor electrolyte comprises sodium-β"-alumina; (b) removing at least a portion of the resistive surface region; (c) heating the precursor electrolyte thereby forming a solid state electrolyte, and (d) placing a side of the solid state electrolyte in contact with a sodium anode.
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