公开(公告)号：US20230178721A1

公开(公告)日：2023-06-08

申请号：US17997354

申请日：2021-04-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyeseung JUNG ,  Jaeho LEE ,  Soochan KIM ,  Chaewoong CHO

IPC: H01M4/485 ,  H01M4/583 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/485 ,  H01M4/583 ,  H01M4/386 ,  H01M10/0525 ,  H01M4/625 ,  H01M2004/027

Abstract: The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising same. The negative electrode for a lithium secondary battery comprise: a current collector; and a negative electrode active material layer formed on the current collector and comprising a, negative electrode active material, lithium titanium oxide, and a conductive material, wherein 2 wt % or less of lithium titanium oxide is contained relative to 100 wt % of the negative electrode active material layer.

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：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：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：US20230109733A1

公开(公告)日：2023-04-13

申请号：US17937260

申请日：2022-09-30

Applicant: Samsung SDI Co., Ltd.

Inventor： Jongheon SEOL ,  Minjae KIM ,  Soochan KIM ,  Hyeseung JUNG ,  Chaewoong CHO ,  Minyoung HONG ,  Junghyun NAM ,  Sungsoo HAN

IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/04

Abstract: Disclosed is a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode includes a current collector and a negative active material layer on the current collector and including a negative active material and a conductive material, the negative active material including a silicon-based active material and the conductive material includes carbon nanotube, wherein the negative active material and the conductive material are included in the negative active material layer in order to satisfy a relationship of Equation 1 and Equation 2. 26

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：US20240234683A9

公开(公告)日：2024-07-11

申请号：US18491680

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: H01M4/1393 ,  H01M4/04 ,  H01M4/133 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/1393 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/587 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/027

Abstract: Disclosed are a method of manufacturing an electrode for a rechargeable lithium battery, and an electrode manufactured therefrom, and a rechargeable lithium battery including the electrode, the method of manufacturing an electrode for a rechargeable lithium battery including mixing together an electrode active material and a first ionic polymer to prepare a first slurry; mixing together the first slurry and a second ionic polymer to prepare a second slurry; mixing together the second slurry and a water-soluble binder to prepare an electrode active material layer slurry; coating the electrode active material layer slurry on a current collector, drying and compressing the electrode active material layer slurry to manufacture an electrode for a rechargeable lithium battery, wherein an amount of the first ionic polymer is about 20 to about 90 wt % based on a total amount of 100 wt % of the first ionic polymer and the second ionic polymer.