公开(公告)号：US20230335806A1

公开(公告)日：2023-10-19

申请号：US18012624

申请日：2022-01-28

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hoyong AN ,  Suhyun KIM

IPC: H01M10/42 ,  H01M50/446 ,  H01M50/417 ,  H01M50/423 ,  H01M50/42 ,  H01M50/46 ,  H01M4/36 ,  H01M10/0525

CPC classification number: H01M10/4235 ,  H01M50/446 ,  H01M50/417 ,  H01M50/423 ,  H01M50/42 ,  H01M50/46 ,  H01M4/366 ,  H01M10/0525 ,  H01M2200/10 ,  H01M2004/027

Abstract: The present invention relates to an electrode for a rechargeable lithium battery and a rechargeable lithium battery comprising same, the electrode for a rechargeable lithium battery comprising a current collector, and active material layer positioned on the current collector, and a safety functional layer that is positioned inside the active material layer as a separate layer and comprises a thermally expandable polymer.

公开(公告)号：US20240186519A1

公开(公告)日：2024-06-06

申请号：US18491672

申请日：2023-10-20

Applicant: SAMSUNG SDI CO., LTD. ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Keemin PARK ,  Hyeseung JUNG ,  Hoyong AN ,  Kyuseo LEE ,  Seung-Hun HAN ,  Soochan KIM ,  Chaewoong CHO ,  Seungcheol MYEONG ,  Taeseup SONG ,  Ungyu PAIK

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/66 ,  H01M10/052

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M4/661 ,  H01M10/052 ,  H01M2004/021

Abstract: A current collector for a rechargeable lithium battery includes a substrate and a binder coating layer on a surface of the substrate, wherein the binder coating layer includes a water-soluble binder selected from a rubber-based binder, a polymer resin binder, or a combination thereof.

公开(公告)号：US20240136530A1

公开(公告)日：2024-04-25

申请号：US18491554

申请日：2023-10-19

Applicant: SAMSUNG SDI CO., LTD. ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Keemin PARK ,  Hyeseung JUNG ,  Hoyong AN ,  Kyuseo LEE ,  Seung-Hun HAN ,  Soochan KIM ,  Chaewoong CHO ,  Seungcheol MYEONG ,  Taeseup SONG ,  Ungyu PAIK

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

Abstract: A method of manufacturing an electrode for a rechargeable lithium battery, an electrode manufactured therefrom, and a rechargeable lithium battery including the electrode are provided. The method includes preparing an electrode active material layer slurry including an electrode active material and a polymer binder, coating the electrode active material layer slurry on a current collector and drying it while applying an electric field to form an active material layer, wherein the polymer binder includes a water-soluble binder and an ionic polymer.

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：US20250038173A1

公开(公告)日：2025-01-30

申请号：US18505884

申请日：2023-11-09

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seung-Hun HAN ,  Kyuseo LEE ,  Hyeseung JUNG ,  Hoyong AN ,  Chaewoong CHO ,  Soochan KIM

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62

Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided, and the negative electrode includes a current collector; a first layer including crystalline carbon; and a second layer including lithium titanium oxide having an aspect ratio of about 10:1 to about 2:1, a Si-based active material, and carbon nanotube, wherein the first layer is positioned between the current collector and the second layer and the second layer is thinner than the first layer.

公开(公告)号：US20240234733A9

公开(公告)日：2024-07-11

申请号：US18491554

申请日：2023-10-20

Applicant: SAMSUNG SDI CO., LTD. ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Keemin PARK ,  Hyeseung JUNG ,  Hoyong AN ,  Kyuseo LEE ,  Seung-Hun HAN ,  Soochan KIM ,  Chaewoong CHO ,  Seungcheol MYEONG ,  Taeseup SONG ,  Ungyu PAIK

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

Abstract: A method of manufacturing an electrode for a rechargeable lithium battery, an electrode manufactured therefrom, and a rechargeable lithium battery including the electrode are provided. The method includes preparing an electrode active material layer slurry including an electrode active material and a polymer binder, coating the electrode active material layer slurry on a current collector and drying it while applying an electric field to form an active material layer, wherein the polymer binder includes a water-soluble binder and an ionic polymer.

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：US20240274891A1

公开(公告)日：2024-08-15

申请号：US18362709

申请日：2023-07-31

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hoyong AN ,  Suhyun KIM ,  Hyunhee KIM

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/58 ,  H01M4/62

CPC classification number: H01M10/4235 ,  H01M4/131 ,  H01M4/5825 ,  H01M4/623 ,  H01M2004/021

Abstract: An electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. An electrode for a rechargeable lithium battery includes a current collector; an active material layer on the current collector; and a functional layer between the current collector and the active material layer, wherein the functional layer includes a first functional layer and a second functional layer, the first functional layer includes a positive temperature coefficient (PTC) resin, and the second functional layer includes a lithium transition metal phosphate.

公开(公告)号：US20240014374A1

公开(公告)日：2024-01-11

申请号：US18212634

申请日：2023-06-21

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jaehwan HA ,  Taejoong KIM ,  Suhyun KIM ,  Seok Gyun PARK ,  Hyunhee KIM ,  Hoyong AN ,  Heeeun YOO ,  Duckhyun KIM

IPC: H01M4/13 ,  H01M10/052 ,  H01M4/66

CPC classification number: H01M4/13 ,  H01M10/052 ,  H01M4/661 ,  H01M2004/028

Abstract: An electrode for a rechargeable lithium battery includes: a current collector, one surface of the current collector being partitioned into a first region and a second region spaced apart from the first region; a safety functional layer on the first region; an active material layer on the first region, the safety functional layer being between the current collector and the active material layer; and an insulating layer on the second region. A length of the safety functional layer is longer than that of the active material layer, and the electrode satisfies Equation 1:


a>b  Equation 1

in which a is a separation distance between the active material layer and the insulating layer, and b is a separation distance between the safety functional layer and the insulating layer.

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.