Festkörpersekundärbatterie und Verfahren zur Herstellung davon

Details

Veröffentlichungs-Nr.

EP4386892

Aktenzeichen

EP23212551

Anmeldetag

28. November 2023

Veröffentlichung

19. Juni 2024

Rechtsraum

EP

IPC

H01M4/133H01M4/134H01M4/36H01M4/587H01M4/62H01M10/0562H01M10/0565// H01M4/02

Abstract

A positive electrode for an all-solid secondary battery, including a first positive active material, a second positive active material, a first solid electrolyte, and a second solid electrolyte, wherein the first positive active material has a D50 particle diameter that is greater than a D50 particle diameter of the second positive active material, the first solid electrolyte has a first D50 particle diameter of about 0.5 to about 1.9 micrometers (µm), and a particle size distribution that satisfies Equation 1 as described herein, the second solid electrolyte has second D50 particle diameter of about 2 to about 5 µm, a ratio of the first D50 particle diameter to the second D50 particle diameter satisfies Equation 2 as described herein, and an amount of the first solid electrolyte in the positive electrode is greater than an amount of the second solid electrolyte in the positive electrode, by weight.

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete