SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

• Main Authors: GU JAYEON, PARK SANGHYUN, KIM GAIN, CHOI YEONJOO
• Format: Patent
• Language: English; Korean
• Published: 03.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

리튬 이차 전지용 분리막 및 이를 포함하는 리튬 이차 전지에 관한 것이다. 구체적으로, 기재 및 상기 기재의 적어도 일면 상에 위치하는 코팅층을 포함하고; 상기 코팅층은 유기 필러를 포함하는 입체 구조형 입자; 및 와이어(wire)형 입자를 포함하는, 리튬 이차 전지용 분리막을 제공한다. A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. For example, provided is a separator for a rechargeable lithium battery including a substrate and a coating layer on at least one surface of the substrate; the coating layer includes three-dimensional structured particles including an organic filler; and wire-type particles. An average length (D50) of the wire-type particles is at least 5 times as large as their average diameter (D50) measured by scanning electronic microscope (SEM) analysis.