公开(公告)号：US20190252673A1

公开(公告)日：2019-08-15

申请号：US16240145

申请日：2019-01-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Inoh CHA ,  Jinhee LEE ,  Chaewoong CHO

IPC: H01M4/133 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode for a rechargeable lithium battery includes a current collector and a negative active material layer disposed on the current collector. The negative active material layer includes a conductive material including a linear-shaped carbon-based material having an average length of about 40 μm to about 250 μm and a dot-shaped carbon-based material, and a negative active material. A mixing ratio of the conductive material and the negative active material is a weight ratio of about 0.1:99.9 to about 2.0:98.0.

公开(公告)号：US20240413349A1

公开(公告)日：2024-12-12

申请号：US18376482

申请日：2023-10-04

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

Inventor： Ki Chun KIL ,  Chaewoong CHO ,  Jaehwan HA ,  Keemin PARK ,  Taeseup SONG ,  Ungyu PAIK ,  Seungcheol MYEONG

IPC: H01M4/66 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

Abstract: A current collector for a rechargeable lithium battery according to an embodiment includes a substrate; and a functional layer on the substrate, wherein the functional layer includes a flame retardant, a conductive material, and a binder.

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：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.

公开(公告)号：US20240136500A1

公开(公告)日：2024-04-25

申请号：US18491680

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: H01M4/1393 ,  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.

公开(公告)号：US20240055614A1

公开(公告)日：2024-02-15

申请号：US18363552

申请日：2023-08-01

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

Inventor： Hyeseung JUNG ,  Soochan KIM ,  Chaewoong CHO ,  Seung Cheol MYEONG ,  Taeseup SONG

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

CPC classification number: H01M4/625 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M2004/027

Abstract: Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery. The negative electrode includes lithium titanium oxide having an aspect ratio of about 10:1 to about 2:1, a needle-type carbon-based material and a negative active material.

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：US20180069229A1

公开(公告)日：2018-03-08

申请号：US15695503

申请日：2017-09-05

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Youngsan KO ,  Minjae KIM ,  Junsik LEE ,  Chaewoong CHO ,  Kijun KIM

IPC: H01M4/133 ,  H01M4/62 ,  H01M4/04 ,  H01M4/134 ,  H01M4/587

Abstract: An electrode for a rechargeable lithium battery includes a current collector, an electrode active material layer on at least one surface of the current collector, a carbon-based coating layer between the current collector and the electrode active material layer, the carbon-based coating layer being formed from a carbon-based slurry including a carbon-based material, a first binder, and a thickener. A content of the first binder is about 35 wt % to about 70 wt % based on the carbon-based coating layer.

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.