ALL-SOLID-STATE LITHIUM-SULPHUR ELECTROCHEMICAL ELEMENT

An all-solid-state lithium-sulphur electrochemical element comprising: a) at least one cathode comprising a cathode active material composition comprising: i) elemental sulphur, ii) carbon, iii) a solid electrolyte, the cathode comprising copper; b) at least one anode the active material of which is...

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Bibliographische Detailangaben
Hauptverfasser:	JORDY, Christian, GUERIN, Elodie, HEZEQUE, Thierry, FISCHER, Florent
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	An all-solid-state lithium-sulphur electrochemical element comprising: a) at least one cathode comprising a cathode active material composition comprising: i) elemental sulphur, ii) carbon, iii) a solid electrolyte, the cathode comprising copper; b) at least one anode the active material of which is lithium or a lithium-based alloy, c) a solid electrolyte which is positioned between the at least one cathode and the at least one anode, and which is identical to or different from the solid electrolyte present in the cathode active material composition, the amount of copper in the cathode being less than or equal to 0.37 g per ampere-hour charged by the element, the ratio nCu/nLi in the element, when said element is in the charged state, being greater than or equal to 0.04 and less than 0.81, wherein nCu represents the mole number of copper and nLi represents the sum of the mole numbers of lithium in the solid electrolyte of the cathode and in the solid electrolyte positioned between the at least one cathode and the at least one anode.