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.

公开(公告)号：US20250054945A1

公开(公告)日：2025-02-13

申请号：US18641208

申请日：2024-04-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Youngkwang CHO ,  Hyunwoo KIM ,  Seung-Hun HAN ,  Beom Kwon KIM ,  Yoonhoi LEE ,  Soochan KIM

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583

Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material layer; and a negative electrode including a negative electrode active material layer, wherein the positive electrode active material layer includes a positive electrode active material and Li5FeO4; and the negative electrode active material layer includes a negative electrode active material including about 10 wt % to about 15 wt % of silicon particles.

公开(公告)号：US20250158018A1

公开(公告)日：2025-05-15

申请号：US18649843

申请日：2024-04-29

Applicant: Samsung SDI Co., Ltd.

Inventor： Suji KIM ,  Seungjae LEE ,  Hoyong AN ,  Soochan KIM ,  Beom Kwon KIM

IPC: H01M4/13 ,  H01M4/02 ,  H01M4/36 ,  H01M10/0587 ,  H01M50/107 ,  H01M50/609

Abstract: A negative electrode for a rechargeable battery includes a base material having a strip shape, a length of the base material in a first direction being relatively shorter than a width of the base material in a second direction intersecting the first direction, and an active material layer on the base material and including an aligned part and a non-aligned part, the active material arranged in the first direction in an order of the non-aligned part, the aligned part, and the non-aligned part, in which the aligned part includes a lower layer and an upper layer stacked on the base material, and alignment directions of the lower layer and the upper layer are different from each other.

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：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：US20240372079A1

公开(公告)日：2024-11-07

申请号：US18494628

申请日：2023-10-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sora CHAE ,  Beom Kwon KIM ,  Nanyoung BAE ,  Ki Chun KIL ,  Suji KIM

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: A rechargeable lithium battery includes a negative electrode comprising a current collector, a negative active material layer on the current collector, and lithium dendrites on a surface of the negative active material layer and having an average size (e.g., an average length) of about 5 μm or less and a rod-like shape; a positive electrode; and a non-aqueous electrolyte.