Batterie, Positivelektrodenfolie und Aufschlämmung, Dispergiermittel und Herstellungsverfahren

Details

Veröffentlichungs-Nr.

EP4769571

Anmeldetag

12. Oktober 2024

Veröffentlichung

22. Januar 2026

Rechtsraum

EP

Abstract

This application discloses a battery, a positive electrode plate, a positive electrode slurry, a dispersant and a preparation method thereof, and an electric device. The battery includes a positive electrode plate, the positive electrode plate includes a current collector and a positive electrode material layer provided on at least one side of the current collector, the positive electrode material layer includes a positive electrode active material and a dispersant, the dispersant includes a polyester compound, the polyester compound includes a structural unit A and/or a structural unit B, the structural unit A has a chemical formula of <img class="EMIRef" id="4397cf51-1a75-4748-8715-fbf82631dcfa-ia01" /> and the structural unit B has a chemical formula of <img class="EMIRef" id="4397cf51-1a75-4748-8715-fbf82631dcfa-ia02" /> where R1 and R2 are each selected from at least one of C0, a C1-C18 alkyl group, and a C6-C18 aryl group; and R3 and R4 are each selected from H, a C1-C18 alkyl group, a C6-C18 aryl group, and an ester group. The dispersant can improve the dispersion performance of the positive electrode slurry, and enhance the uniformity and flexibility of the positive electrode plate, thereby providing the battery with high capacity and stability.

Anmelder

Firma

Contemporary Amperex Technology (Hong Kong) Limited

Land

🇭🇰 Hongkong