Festkörpersekundärbatterie und Verfahren zur Herstellung davon

Details

Veröffentlichungs-Nr.

EP4804250

Anmeldetag

24. Juni 2024

Veröffentlichung

8. Mai 2025

Rechtsraum

EP

Abstract

Disclosed herein are an all-solid-state secondary battery and a method of manufacturing the same, the all-solid-state secondary battery including: a cathode layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer disposed on one or both sides of the cathode current collector, the cathode active material layer includes a composite cathode active material, the composite cathode active material includes a composite of M₂S, an alkali metal salt, an inorganic electronic conductive structure, and a metal conductive material, where M is an alkali metal, and the alkali metal is Li or Na, an electronic conductivity of the inorganic electronic conductive structure is 1 x 10^-3 S/cm or more, the composite includes a solid solution of M₂S and an alkali metal salt, and a ratio of length/thickness of the metal conductive material is 2 or more.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea