Negative Elektrode für eine Wiederaufladbare Lithiumbatterie und Wiederaufladbare Lithiumbatterie damit

Details

Veröffentlichungs-Nr.

EP4510227

Aktenzeichen

EP24189986

Anmeldetag

22. Juli 2024

Veröffentlichung

16. April 2025

Rechtsraum

EP

IPC

H01M4/36H01M4/38H01M4/587H01M10/052// H01M4/02

Abstract

Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode includes a current collector; a first active material layer on at least one surface of the current collector, and including a first active material, a second active material layer on the first active material layer, and including a second active material, and a third active material layer on the second active material layer, and including a third active material, wherein the first active material includes a first crystalline carbon, the second active material includes a Si-carbon composite, and the third active material includes a second crystalline carbon, wherein a porosity A of the first active material layer, a porosity B of the second active material layer, and a porosity C of the third active material layer satisfy a relationship of Equation 1 or Equation 2: C ≥ B > A <img class="EMIRef" id="7c5db0c6-ce9a-474b-830f-645d0c12b35c-ia01" /> C > B ≥ A . <img class="EMIRef" id="7c5db0c6-ce9a-474b-830f-645d0c12b35c-ia02" />

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea

Fachgebiete