公开(公告)号：US20240372072A1

公开(公告)日：2024-11-07

申请号：US18383660

申请日：2023-10-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jungho LEE ,  Youngugk KIM ,  Yookyung KIM ,  Sungwon JUNG ,  Jaehou NAH ,  Hyun SOH ,  Doori OH

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/052

Abstract: A negative electrode active material composite, including an amorphous carbon matrix, and silicon nanoparticles and crystalline carbon fibers dispersed in the amorphous carbon matrix, the silicon nanoparticles being in contact with a portion or all of the crystalline carbon fibers in the amorphous carbon matrix.

公开(公告)号：US20240120466A1

公开(公告)日：2024-04-11

申请号：US18012458

申请日：2021-10-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changsu SHIN ,  Jongmin KIM ,  Jongmin WON ,  Youngugk KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Dae-Hyeok LEE ,  Jungho LEE

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/386 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

Abstract: Provided is that a negative active material for a rechargeable lithium battery, a negative electrode for a rechargeable lithium battery including the same, and a rechargeable lithium including the same, and the negative active material for a rechargeable lithium battery includes an agglomerated product of silicon-based materials comprising a silicon particle, a lithium silicate positioned on a surface of the silicon particle, a first amorphous carbon surrounded on the silicon particle and the lithium silicate; and a second amorphous carbon positioned on the agglomerated product.

公开(公告)号：US20240186569A1

公开(公告)日：2024-06-06

申请号：US18380778

申请日：2023-10-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhoon YANG ,  Jungho LEE ,  Juhee SOHN ,  Hyuksoo SHIN ,  Kang Hee LEE ,  Sungwon JUNG

IPC: H01M10/0562 ,  H01M4/131 ,  H01M4/36

CPC classification number: H01M10/0562 ,  H01M4/131 ,  H01M4/366 ,  H01M2300/0071

Abstract: Disclosed is an all solid-state battery, and the all solid-state battery including a positive electrode including a positive active material layer including a positive active material, a negative catalyst layer including a negative catalyst and Nb2O5; and an electrolyte, wherein an amount of Nb2O5 is about 1 wt % to about 30 wt % of the total, 100 wt % of the negative catalyst layer, and a ratio (N/P) of a capacity of the negative catalyst layer relative to a capacity of the positive electrode is about 0.1 or more and less than 0.5.

公开(公告)号：US20230135650A1

公开(公告)日：2023-05-04

申请号：US17944630

申请日：2022-09-14

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Young-Min KIM ,  Eunji KANG ,  Youngugk KIM ,  Yookyung KIM ,  Sunil PARK ,  Changsu SHIN ,  Doori OH ,  Jongmin WON ,  Dae-Hyeok LEE ,  Jungho LEE

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M4/04

Abstract: A negative active material composite, a method of preparing the same, and a negative electrode and a rechargeable lithium battery including the same, the negative active material composite including compound particles represented by SiOx, in which 0

公开(公告)号：US20240347704A1

公开(公告)日：2024-10-17

申请号：US18384717

申请日：2023-10-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Doori OH ,  Youngugk KIM ,  Yookyung KIM ,  Young-Min KIM ,  Sunil PARK ,  Jungho LEE ,  Jongmin WON ,  Jaehou NAH ,  Eunji KANG ,  Dae-Hyeok LEE ,  Changsu SHIN

IPC: H01M4/36 ,  C01B32/20 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M4/366 ,  C01B32/20 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  C01P2006/40 ,  H01M2004/027

Abstract: A negative active material and a rechargeable lithium battery including the negative active material. The negative active material includes first, second and third active materials. The first active material is a crystalline carbon. The second active material includes a first core, which includes crystalline carbon and a silicon-based material, and a first carbon coating positioned on the first core. The third active material includes a second core, which includes a silicon-based material, and a second carbon coating layer positioned on the second core.

公开(公告)号：US20240347689A1

公开(公告)日：2024-10-17

申请号：US18386068

申请日：2023-11-01

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yookyung KIM ,  Youngugk KIM ,  Jungho LEE ,  Jaehou NAH

IPC: H01M4/13

CPC classification number: H01M4/13

Abstract: A negative active material, including a first active material including a silicon core and a carbon coating layer on the core, a carbon second active material having an aspect ratio of about 4 to about 100, and a crystalline carbon third active material.

公开(公告)号：US20240105922A1

公开(公告)日：2024-03-28

申请号：US18370909

申请日：2023-09-21

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyuksoo SHIN ,  Hwichul YANG ,  Jungho LEE ,  Juhee SOHN ,  Jinhoon YANG ,  Sungwon JUNG

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/382 ,  H01M4/583 ,  H01M4/62 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/4235 ,  H01M2004/027

Abstract: A negative electrode for a rechargeable lithium battery, the negative electrode including a negative electrode current collector, a negative electrode catalyst layer on the negative electrode current collector, and a lithium ion conductive layer on the negative electrode catalyst layer.

公开(公告)号：US20230361275A1

公开(公告)日：2023-11-09

申请号：US18012470

申请日：2021-11-15

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Dae-Hyeok LEE ,  Youngugk KIM ,  Jaemyung KIM ,  Jaehou NAH ,  Changsu SHIN ,  Chul YOUM ,  Jongmin WON ,  Jungho LEE ,  Heeyoung CHU

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052 ,  H01M2004/021

Abstract: Provides are an anode active material for a lithium secondary battery and a lithium secondary battery comprising same, wherein the anode active material for a lithium secondary battery comprises a silicon-carbon composite having a void in the central portion, the radius of the central portion corresponds to 30% to 50% of the radius of the anode active material for a lithium secondary battery, and the silicon-carbon composite includes silicon nanoparticles and amorphous carbon.

公开(公告)号：US20220020980A1

公开(公告)日：2022-01-20

申请号：US17375365

申请日：2021-07-14

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changsu SHIN ,  Heeyoung CHU ,  Youngugk KIM ,  Jaemyung KIM ,  Chul YOUM ,  Jongmin WON ,  Dae-Hyeok LEE ,  Jungho LEE

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/62

Abstract: A negative active material for a rechargeable lithium battery, a negative electrode, and a rechargeable lithium battery including the same, the negative active material including a core including silicon nanoparticles and a lithium titanium-based oxide; and an amorphous carbon layer on a surface of the core.

公开(公告)号：US20210399304A1

公开(公告)日：2021-12-23

申请号：US17350993

申请日：2021-06-17

Applicant: Samsung SDI Co., Ltd.

Inventor： Jungho LEE ,  Jaehou NAH ,  Hyun SOH ,  Inhyuk SON ,  Duk-Hyoung YOON

IPC: H01M4/60 ,  H01M4/587 ,  H01M4/38 ,  H01M4/36 ,  H01M4/133 ,  H01M4/136 ,  H01M10/0525

Abstract: A negative active material for a rechargeable lithium battery includes an amorphous carbon matrix, silicon particles dispersed in the amorphous carbon matrix, and a nitrogen-containing carbon compound protruding outward from the surface of the amorphous carbon matrix. Additional embodiments provide a method of preparing the same and a rechargeable lithium battery including the same.