公开(公告)号：US20250140872A1

公开(公告)日：2025-05-01

申请号：US18752495

申请日：2024-06-24

Applicant: Samsung SDI Co., Ltd.

Inventor： Donghyun Shin ,  Jaehong Kim ,  Hyejin Kwon ,  Jungwook Cha

IPC: H01M4/74 ,  H01M4/02 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525

Abstract: An electrode and a lithium battery including the same are provided. The electrode includes an electrode active material layer and two or more electrode current collectors arranged along a thickness direction within the electrode active material layer, wherein the two or more electrode current collectors include an upper electrode current collector adjacent a top surface of the electrode active material layer; and a lower electrode current collector adjacent a bottom surface of the electrode active material layer, wherein the electrode active material layer includes an internal electrode active material layer between the upper electrode current collector and the lower electrode current collector; and an external electrode active material layer outside of the upper electrode current collector and the lower electrode current collector, and wherein the two or more electrode current collectors include a porous structure.

公开(公告)号：US10439189B2

公开(公告)日：2019-10-08

申请号：US15707330

申请日：2017-09-18

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sujin Um ,  Jung Woo An ,  Jungyeon Won ,  Jungwook Cha

IPC: H01M2/16 ,  H01M10/052 ,  H01M10/42 ,  H01M10/0583

Abstract: A separator for a rechargeable lithium battery includes a polymer substrate, and a coating layer on at least one surface of the polymer substrate. The coating layer includes a ceramic, a binder, and a nanoclay having an interlayer spacing (d-spacing) of about 10 Å to about 50 Å.