公开(公告)号：US20250125359A1

公开(公告)日：2025-04-17

申请号：US18670457

申请日：2024-05-21

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Minjun KIM ,  Minyoung HONG ,  Hoyong AN ,  Beom Kwon KIM ,  Gurnyoung JO ,  Soochan KIM ,  Hyeseung JUNG

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/133 ,  H01M4/587 ,  H01M10/052

Abstract: Disclosed are a negative active material for a rechargeable lithium battery, a negative electrode including the negative active material, and a rechargeable lithium battery including the same. The negative active material includes crystalline carbon, wherein the crystalline carbon has a Raman spectrum peak intensity ratio (ID/IG) of a peak intensity (ID) of a D peak (about 1360 cm−1 to about 1370 cm−1) relative to a peak intensity (IG) of a G peak (about 1580 cm−1 to about 1590 cm−1) of less than about 0.05.

公开(公告)号：US20250087692A1

公开(公告)日：2025-03-13

申请号：US18739178

申请日：2024-06-10

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Soochan KIM ,  Beom Kwon KIM ,  Minjun KIM ,  Hyeseung JUNG ,  Hoyong AN ,  Minyoung HONG

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525

Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode includes a current collector, a negative active material layer including a negative active material, and a coating layer between the current collector and the negative active material layer, the coating layer including an organic metal-based material, and having a pattern shape.

公开(公告)号：US20250158029A1

公开(公告)日：2025-05-15

申请号：US18671528

申请日：2024-05-22

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyeseung JUNG ,  Beom Kwon KIM ,  Soochan KIM ,  Minjun KIM ,  Hoyong AN ,  Minyoung HONG ,  Gurnyoung JO

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/583 ,  H01M10/052

Abstract: Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. the negative electrode includes a current collector, a negative active material layer including a first active material layer in contact with the current collector and a second active material layer on the first active material layer, wherein at least one active material layer of the first active material layer and the second active material layer includes pores, the pores including macropores having an average size of about 1 μm or more and a porosity of the macropores is about 20% or more based on a total porosity 100% of the negative active material layer.