Zusammensetzung für Positive Elektroden von Sekundärbatterien mit Wasserfreiem Elektrolyt, Positive Elektrodenfolie und Sekundärbatterie mit Wasserfreiem Elektrolyt

Details

Veröffentlichungs-Nr.

EP4723208

Anmeldetag

22. Mai 2024

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

IPC

H01M4/139, H01M4/13, H01M4/36

Abstract

Provided are a composition for a positive electrode containing a positive electrode active material consisting of a large particle group A having a particle diameter of 5.0 µm or more and a small particle group B having a particle diameter of less than 5.0 µm, in which, in a number-based particle size distribution of the positive electrode active material, in a case where the total frequency is set to 100%, a frequency of the large particle group A is 60% or more and a frequency of the small particle group B is 40% or less, and a surface tension γB (mN/m) of the small particle group B with respect to N-methylpyrrolidone satisfies an expression B1: 15.0 ≤ γB ≤ 40.0; a positive electrode sheet including a positive electrode active material layer formed of the composition for a positive electrode; and a non-aqueous electrolytic solution secondary battery using the positive electrode sheet.

Anmelder

Firma

FUJIFILM Corporation

Land

🇯🇵 Japan