Positivelektrodenaktivmaterial, Elektrode und Batterie

Details

Veröffentlichungs-Nr.

EP4794020

Anmeldetag

15. Januar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

IPC

H01M4/36, H01M4/58, H01M4/62

Abstract

A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group, a second particle group, and a carbon layer (1c); each of the first particle group and the second particle group is composed of primary particles (1); the first particle group has a larger average particle diameter than the second particle group; the primary particles contain an olivine-type compound; the carbon layer (1c) covers at least part of a surface of the primary particle (1) and satisfies a relationship of T<B> < T<A> where T<A> represents an average thickness of the carbon layer (1<C>) on the primary particles (1) belonging to the first particle group; and T<B> represents an average thickness of the carbon layer (1c) on the primary particles (1) belonging to the second particle group.

Anmelder

Firma

Toyota Jidosha Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete