Aufschlämmung zur Bildung einer Positivelektrode einer Sekundärbatterie mit Wasserfreiem Elektrolyt, Positivelektrodenfolie und Sekundärbatterie mit Wasserfreiem Elektrolyt

Details

Veröffentlichungs-Nr.

EP4723206

Anmeldetag

22. Mai 2024

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

IPC

H01M4/139, H01M4/13, H01M4/36

Abstract

Provided are a slurry for forming a positive electrode, containing a positive electrode active material, an electrolyte, and a dispersion medium, in which the positive electrode active material includes 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 a number-based particle size distribution of the positive electrode active material, in a case where a 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 liquid absorption amount ηB (g/100 g) of the dispersion medium per 100 g of the small particle group B satisfies an expression B1: 15 ≤ ηB ≤ 30; a positive electrode sheet including a positive electrode active material layer formed of the slurry for forming a positive electrode; and a non-aqueous electrolytic solution secondary battery incorporating the positive electrode sheet as a positive electrode.

Anmelder

Firma

FUJIFILM Corporation

Land

🇯🇵 Japan