公开(公告)号：US20230275262A1

公开(公告)日：2023-08-31

申请号：US18013307

申请日：2021-06-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhoon YANG ,  Byeonggyu CHO ,  Jinkyu KIM ,  Yunchae JUNG ,  Sangil HAN

IPC: H01M10/0562 ,  H01M4/36 ,  H01M4/133 ,  H01M4/62

CPC classification number: H01M10/0562 ,  H01M4/366 ,  H01M4/133 ,  H01M4/621 ,  H01M2004/027

Abstract: The present invention relates an all solid-state battery, the all solid-state battery comprising: a current collecting body; a negative electrode comprising a negative electrode layer disposed on one surface of the current collecting body; a positive electrode; and a solid electrolyte layer located between the negative electrode and positive electrode, wherein the negative electrode layer thickness (a) and solid electrolyte layer thickness (b) have the relationship expressed in formula 1.


1.0≤b/a≤6.0.  [formula 1]

公开(公告)号：US20230062428A1

公开(公告)日：2023-03-02

申请号：US18048405

申请日：2022-10-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Sangil HAN ,  Ilseok KIM ,  Jinkyu KIM ,  Jeonghye LEE ,  Byeonggyu CHO

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525

Abstract: The present invention provides a negative electrode for a lithium metal battery and a lithium metal battery comprising the same, the negative electrode comprising: a first negative electrode including a lithium metal negative electrode; and a second negative electrode which is disposed on the first negative electrode and includes a coating layer including a carbon-based material. By using the negative electrode for a lithium metal battery, a lithium metal battery can have an improved charge and discharge efficiency and life time.

公开(公告)号：US20190112453A1

公开(公告)日：2019-04-18

申请号：US16099821

申请日：2017-05-11

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinkyu KIM ,  Jungmin SONG ,  Sangkyun IM

IPC: C08K9/06 ,  C08K5/544 ,  C08K5/02 ,  C08K5/41 ,  C08K5/315 ,  C09C1/40 ,  H01M10/052 ,  H01M4/62 ,  H01M4/134 ,  H01M4/38

Abstract: Provided are a protective negative electrode for a lithium metal battery, which includes a lithium metal negative electrode, and a protective film disposed on the lithium metal negative electrode and including a filler bound with a siloxane functional group and a polymer; and a lithium metal battery including the same.

公开(公告)号：US20240105943A1

公开(公告)日：2024-03-28

申请号：US18013289

申请日：2022-08-09

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhoon YANG ,  Byeonggyu CHO ,  Jinkyu KIM ,  Yunchae JUNG ,  Sangil HAN

IPC: H01M4/587 ,  H01M4/133 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/587 ,  H01M4/133 ,  H01M4/622 ,  H01M10/0562 ,  H01M2004/027

Abstract: Provided are a negative electrode layer for an all-solid secondary battery, and an all-solid secondary battery including the same, the negative electrode layer comprising a negative electrode current collector and a first negative electrode active material layer including a carbon-based material, wherein the carbon-based material includes a mixture of amorphous carbon black and crystalline carbon black, and satisfies that the D peak to G peak intensity ratio of the amorphous carbon black, obtained by Raman analysis, is 1.5 or more, and the D peak to G peak intensity ratio of the crystalline carbon black, obtained by Raman analysis, is greater than 0.5 and less than 1.5.

公开(公告)号：US20230223591A1

公开(公告)日：2023-07-13

申请号：US18013287

申请日：2021-06-22

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yunchae JUNG ,  Jinkyu KIM ,  Jinhoon YANG ,  Byeonggyu CHO ,  Hongjeong KIM ,  Sangil HAN

IPC: H01M10/0562 ,  H01M4/04 ,  H01M4/62 ,  H01M4/36 ,  H01M4/583 ,  H01M4/38

CPC classification number: H01M10/0562 ,  H01M4/0404 ,  H01M4/622 ,  H01M4/364 ,  H01M4/583 ,  H01M4/38 ,  H01M4/366 ,  H01M4/382 ,  H01M2004/027

Abstract: The present invention relates to an all-solid-state battery including: an electrode assembly including a negative electrode, a positive electrode, and a solid electrolyte between the negative electrode and the positive electrode; and a case for accommodating the electrode assembly, wherein the negative electrode includes a negative electrode current collector and a negative electrode active material layer including a negative electrode active material and a binder, the negative electrode active material includes a carbon-based material and metal particles, the binder includes a first polymer of a butadiene rubber, and a second polymer selected from carboxy alkyl cellulose (wherein alkyl is a C1 to C6 alkyl), a salt thereof, and a combination thereof, and the first polymer and the second polymer are included in a weight ratio of 1:1 to 6:1.

公开(公告)号：US20220199995A1

公开(公告)日：2022-06-23

申请号：US17554635

申请日：2021-12-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinkyu KIM ,  Jinhoon YANG ,  Byeonggyu CHO ,  Yunchae JUNG ,  Yoonchang KIM ,  Sangil HAN

IPC: H01M4/587 ,  H01M10/0562

Abstract: An anode material, an anode layer including the same, an all-solid secondary battery including the anode layer, and a method of manufacturing the all-solid secondary battery, the anode material including a metal-carbon composite, wherein the metal-carbon composite includes a carbon material; and metal particles, and the metal particles are dispersed and complexed in the carbon material, between particles of the carbon material, on a surface of the carbon material, or in two or more locations thereof