Negativelektrode für eine Wiederaufladbare Lithiumbatterie und Wiederaufladbare Lithiumbatterie damit

Details

Veröffentlichungs-Nr.

EP3561914

Aktenzeichen

EP19171112

Anmeldetag

25. April 2019

Veröffentlichung

22. Januar 2025

Erteilung

22. Januar 2025

Rechtsraum

EP

IPC

H01M4/133H01M4/1393H01M4/587H01M10/0525

Abstract

Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative electrode for a rechargeable lithium battery includes a current collector and a negative active material layer disposed on the current collector and including a carbon-based negative active material and a conductive agent, wherein the conductive agent includes a fiber-shaped conductive agent having a length of about 1 µm to about 200 µm or a particle-shaped conductive agent having a size (long diameter) of about 1 µm to about 20 µm, and a DD (Degree of Divergence) value defined by Equation 1 is greater than or equal to about 24. DD Degree of Divergence = Ia / Itotal * 100 <img class="EMIRef" id="605187336-ia01" /> In Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuKα ray, Itotal is a sum of peak intensity at all angles measured by XRD using a CuKα ray.

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete