Festkörperbatterie

Details

Veröffentlichungs-Nr.

EP4826892

Anmeldetag

12. Dezember 2024

Veröffentlichung

19. Juni 2025

Rechtsraum

EP

Abstract

In an all-solid-state battery including a sulfide-based solid-state-electrolyte and using a conductive porous sheet for connection between an electrode and a conductive path of an exterior body, internal resistance of the battery is reduced and increase of the internal resistance with time is prevented. The all-solid-state battery of the present invention is characterized in that it includes: an electrode stacked body having a positive electrode, a negative electrode, and a solid electrolyte layer; and an exterior body having the electrode stacked body sealed inside of the exterior body, wherein the exterior body has a conductive path extending from the inside to the outside, a porous metal substrate is interposed between the positive electrode and/or the negative electrode and a conductive path of the exterior body, at least one of the positive electrode, the negative electrode, and the solid electrolyte layer includes a sulfide-based solid electrolyte, the porous metal substrate is formed of an alloy containing Ni and Cr, a content of Ni in the alloy is 60 mass% or more, and a content of Cr in the alloy is 0.1 mass% or more and 40 mass% or less.

Anmelder

Firma

Maxell, Ltd.

Land

🇯🇵 Japan