公开(公告)号：US12199271B2

公开(公告)日：2025-01-14

申请号：US18316830

申请日：2023-05-12

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Junghyun Choi ,  Inhyuk Son ,  Mijong Kim ,  Sangkook Mah ,  Jumyeung Lee ,  Minwoo Lim ,  Sungsoo Han

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

Abstract: A porous silicon-containing composite includes: a porous core including a porous silicon composite secondary particle; and a shell on at least one surface of the porous core, the shell including a first graphene, wherein the porous silicon composite secondary particle includes an aggregate of a first primary particle including silicon, a second primary particle including a structure and second graphene on at least one surface of the first primary particle and the second primary particle, and wherein at least one of a shape and a degree of oxidation of the first primary particle and the second primary particle are different. Also an electrode including the porous silicon-containing composite, a lithium battery including the electrode, and a device including the porous silicon-containing composite or the carbon composite.

公开(公告)号：US10974965B2

公开(公告)日：2021-04-13

申请号：US16253639

申请日：2019-01-22

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Jongseok Moon ,  Mijong Kim ,  Sewon Kim ,  Kyueun Shim ,  Sungsoo Han ,  Inhyuk Son ,  Jumyeung Lee ,  Minwoo Lim

IPC: B32B9/00 ,  C01B33/023 ,  H01M4/38 ,  H01M4/48 ,  H01M4/1395 ,  H01M4/62 ,  H01M4/36 ,  H01M4/04 ,  H01M4/587 ,  C01B33/00 ,  C01B32/186 ,  H01L35/14 ,  H01M4/583 ,  H01M4/134 ,  H01M10/0525 ,  C01B32/182 ,  C01B32/20 ,  B82Y40/00 ,  C01B33/113

Abstract: A silicon-containing structure including: a silicon composite including a porous silicon secondary particle and a first carbon flake on a surface of the porous silicon secondary particle; a carbonaceous coating layer on the porous silicon composite, the carbonaceous coating layer comprising a first amorphous carbon; and the silicon composite comprises a second amorphous carbon and has a density that is equal to or less than a density of the carbonaceous coating layer, wherein the porous silicon secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a second carbon flake on a surface of the silicon suboxide.

公开(公告)号：US10541415B2

公开(公告)日：2020-01-21

申请号：US15718386

申请日：2017-09-28

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Jeeeun Yang ,  Seunguk Kwon ,  Kyueun Shim ,  Hyoungwoo Choi ,  Sungsoo Han

IPC: H01M4/62 ,  H01M4/13 ,  H01M4/38 ,  H01M10/052 ,  H01M4/02

Abstract: A negative electrode for a lithium secondary battery includes: a negative active material disposed on a current collector; a negative active material layer including a first binder and a conductive agent; and a protective layer disposed on the negative active material layer, wherein the protective layer is in direct contact with the current collector and includes a nonaqueous or aqueous second binder and an inorganic material, wherein, in the protective layer including the aqueous second binder and the inorganic material, the amount of the inorganic material may be about 65 parts by weight or greater, based on 100 parts by weight of the protective layer, and wherein the protective layer including the nonaqueous second binder and the inorganic material, the amount of the inorganic material may be in a range of about 5 parts to about 25 parts by weight, based on 100 parts by weight of the protective layer.

公开(公告)号：US11695107B2

公开(公告)日：2023-07-04

申请号：US16595751

申请日：2019-10-08

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Junghyun Choi ,  Inhyuk Son ,  Mijong Kim ,  Sangkook Mah ,  Jumyeung Lee ,  Minwoo Lim ,  Sungsoo Han

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: A porous silicon-containing composite includes: a porous core including a porous silicon composite secondary particle; and a shell on at least one surface of the porous core, the shell including a first graphene, wherein the porous silicon composite secondary particle includes an aggregate of a first primary particle including silicon, a second primary particle including a structure and second graphene on at least one surface of the first primary particle and the second primary particle, and wherein at least one of a shape and a degree of oxidation of the first primary particle and the second primary particle are different. Also an electrode including the porous silicon-containing composite, a lithium battery including the electrode, and a device including the porous silicon-containing composite or the carbon composite.

公开(公告)号：US11264615B2

公开(公告)日：2022-03-01

申请号：US16105045

申请日：2018-08-20

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Woojin Bae ,  Kanghee Lee ,  Heechul Jung ,  Seongho Jeon ,  Sungsoo Han

IPC: H01M2/14 ,  H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M10/0525 ,  C08J3/24 ,  H01M4/587 ,  H01M4/02 ,  H01M10/052

Abstract: A binder includes a cross-linked product of at least a first polymer, a second polymer, and a third polymer, wherein the cross-linked product is cross-linked by at least two ester bonds; the first polymer includes polyimide, polyamic acid, a copolymer thereof, or a combination thereof, wherein the first polymer includes a structural unit including an alkali metal and a structural unit including at least one hydroxyl functional group; the second polymer includes poly(acrylic acid), poly(methacrylic acid), a copolymer thereof, or a combination thereof; and the third polymer includes polyvinyl alcohol, polyacrylamide, polymethacrylamide, a copolymer thereof, or a combination thereof.

公开(公告)号：US10978701B2

公开(公告)日：2021-04-13

申请号：US15816095

申请日：2017-11-17

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Jongseok Moon ,  Mijong Kim ,  Sewon Kim ,  Kyueun Shim ,  Sungsoo Han ,  Inhyuk Son ,  Jumyeung Lee

IPC: H01M4/38 ,  H01M4/1393 ,  H01M4/134 ,  H01M4/1395 ,  H01G11/24 ,  H01M4/36 ,  H01G11/42 ,  H01G11/50 ,  H01G11/38 ,  H01M4/04 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

Abstract: A porous silicon composite including: a porous silicon composite cluster comprising a porous silicon composite secondary particle and a second carbon flake on at least one surface of the porous silicon composite secondary particle; and a carbonaceous layer on the porous silicon composite cluster, the carbonaceous layer comprising amorphous carbon, wherein the porous silicon composite secondary particle comprises an aggregate of two or more silicon primary particles, the two or more silicon primary particles comprise silicon, a silicon suboxide of the formula SiOx, wherein 0

公开(公告)号：US10529983B2

公开(公告)日：2020-01-07

申请号：US15398016

申请日：2017-01-04

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd. ,  Seoul National University R&DB Foundation

Inventor： Kanghee Lee ,  Byoungsun Lee ,  Woongryeol Yu ,  Sungsoo Han ,  Hosung Yang ,  Jihyun Yoon

IPC: H01M4/36 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/15 ,  H01M4/62

Abstract: A composite electrode active material includes: a carbon nanostructure shell; a first core material disposed in a first pore channel of the carbon nanostructure shell; and a second core material disposed in a second pore channel of the carbon nanostructure shell, wherein the first core material includes a first electrode active material and the second core material includes a second electrode active material, and wherein the first electrode active material has a Li+/Li charge/discharge voltage potential which is different from a Li+/Li charge/discharge voltage potential of the second electrode active material.

公开(公告)号：US11005122B2

公开(公告)日：2021-05-11

申请号：US16183853

申请日：2018-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsuk Jung ,  Boksoon Kwon ,  Eunha Lee ,  Seongho Jeon ,  Heechul Jung ,  Sungnim Jo ,  Sungsoo Han

IPC: H01M10/04 ,  H01M2/10

Abstract: Battery housing structures and battery apparatuses including the same are provided. A battery housing structure may include a case including an accommodation region in which a battery unit is accommodated, and an elastic member assembly provided in the case and configured to apply a pressure to the battery unit accommodated in the accommodation region. The elastic member assembly may include at least one first elastic member having an elastic coefficient that increases when a displacement increases and at least one second elastic member having an elastic coefficient that decreases when a displacement increases. The at least one first elastic member and the at least one second elastic member may have different structures or may be arranged in different directions.

公开(公告)号：US10862107B2

公开(公告)日：2020-12-08

申请号：US15397910

申请日：2017-01-04

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Ken Ogata ,  Seongho Jeon ,  Koichi Takei ,  Sungsoo Han

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/13 ,  H01M4/587

Abstract: A composite anode active material includes a composite medium, the composite medium including a first medium block including a metal nanostructure capable of intercalation or deintercalation of lithium and a conductive medium disposed on the metal nanostructure; and a second medium block, disposed adjacent to the first medium block and including a medium which is free of the metal nanostructure.

公开(公告)号：US20200161634A1

公开(公告)日：2020-05-21

申请号：US16557097

申请日：2019-08-30

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Mijong Kim ,  Inhyuk Son ,  Sangkook Mah ,  Jumyeung Lee ,  Minwoo Lim ,  Junghyun Choi ,  Sungsoo Han

IPC: H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/1393

Abstract: An electrode composite conducting agent for a lithium battery includes a carbonaceous conductive material, and the graphene-silica composite, wherein the graphene-silica composite includes a matrix including graphene, and a silicon suboxide of the formula SiOx wherein 0