Elektrodenmischfolie, Herstellungsverfahren Dafür, Elektrode damit und Sekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4765222

Anmeldetag

11. April 2025

Veröffentlichung

16. Oktober 2025

Rechtsraum

EP

Abstract

The disclosure discloses an electrode mixture film including an electrode active material, and a binder having a three-dimensional fiber network structure, wherein the electrode mixture film has an average value of shear strength of 15 N/mm<2> or greater, a ratio of shear strength in a TD direction to shear strength in an MD direction 0.92 to 1.08, and a standard deviation of shear strength of 0.49 or less, and the shear strength is measured by means of a surface and interfacial characteristics analysis system (SAICAS) at two or more points spaced apart at regular intervals with respect to a depth direction of the electrode mixture film. The electrode mixture film includes a binder, a three-dimensional network structure of which is not only structurally stably, but also firmly and uniformly formed within the film, so that an electrode including the same may have excellent mechanical properties and excellent resistance properties, and a secondary battery including the same may have improved output and lifespan as well as excellent durability.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea