Wiederaufladbare Batterie und Batteriepack damit

Details

Veröffentlichungs-Nr.

EP4726841

Anmeldetag

6. Oktober 2025

Veröffentlichung

15. April 2026

Rechtsraum

EP

Abstract

The present disclosure relates to a rechargeable battery and a battery pack including the rechargeable battery. The rechargeable battery includes a case having an open portion, an electrode assembly and an electrolyte accommodated in the case, and a cap-up in the open portion. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate. The separator includes a base and a coating layer located on at least one surface of the base. A sum of machine direction (MD) elongation rate and transverse direction (TD) elongation rate of the base is 200% or less. A sum of MD tensile strength and TD tensile strength of the base is 4,000 kgf/cm² or less. The coating layer includes a binder, and the binder includes one or more of an aramid-based resin and an acrylic resin.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea