公开(公告)号：US11735741B2

公开(公告)日：2023-08-22

申请号：US17930715

申请日：2022-09-08

申请人： SAMSUNG SDI CO., LTD.

发明人： Inoh Cha ,  Deok-Hyun Kim ,  Jinhee Lee

IPC分类号： H01M4/66 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/661 ,  H01M4/366 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cm2 to 30 mg/cm2, a loading level of the first active material layer is 4 mg/cm2 to 25 mg/cm2, a loading level of the second active material layer is 4 mg/cm2 to 25 mg/cm2, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.

公开(公告)号：US09601754B2

公开(公告)日：2017-03-21

申请号：US14333433

申请日：2014-07-16

申请人： Samsung SDI Co., Ltd.

发明人： Yu-Jeong Cho ,  Hyun-Ki Park ,  Sang-Hyuck Ahn ,  Deok-Hyun Kim ,  Xianhui Meng ,  Su-Kyung Lee ,  Yeon-Gap Kim ,  Young-Jin Choi

IPC分类号： H01M4/13 ,  H01M4/36 ,  H01M4/48 ,  H01M4/134 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485

CPC分类号： H01M4/134 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  Y02E60/122

摘要： Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material including SiOx particles, where 0

公开(公告)号：US20140038040A1

公开(公告)日：2014-02-06

申请号：US13956230

申请日：2013-07-31

申请人： Samsung SDI Co. Ltd.

发明人： Sang-Eun Park ,  Young-Ugk Kim ,  Jae-Myung Kim ,  Deok-Hyun Kim ,  Yeon-Gap Kim ,  Kyu-Nam Joo

IPC分类号： H01M4/36 ,  H01M4/04

CPC分类号： H01M4/362 ,  H01M4/04 ,  H01M4/131 ,  H01M4/134 ,  H01M4/364 ,  H01M4/48 ,  H01M4/483 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y10T29/49108

摘要： In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed.

摘要翻译： 在一方面，公开了一种用于包括表面改性氧化硅颗粒的可再充电锂电池的负极活性材料。

公开(公告)号：US11728488B2

公开(公告)日：2023-08-15

申请号：US17930714

申请日：2022-09-08

申请人： SAMSUNG SDI CO., LTD.

发明人： Inoh Cha ,  Deok-Hyun Kim ,  Jinhee Lee

IPC分类号： H01M4/66 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/661 ,  H01M4/366 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cm2 to 30 mg/cm2, a loading level of the first active material layer is 4 mg/cm2 to 25 mg/cm2, a loading level of the second active material layer is 4 mg/cm2 to 25 mg/cm2, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.

公开(公告)号：US11646422B2

公开(公告)日：2023-05-09

申请号：US17930676

申请日：2022-09-08

申请人： SAMSUNG SDI CO., LTD.

发明人： Inoh Cha ,  Deok-Hyun Kim ,  Jinhee Lee

IPC分类号： H01M4/36 ,  H01M4/66 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/661 ,  H01M4/366 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising the same. The negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cm2 to 30 mg/cm2, a loading level of the first active material layer is 4 mg/cm2 to 25 mg/cm2, a loading level of the second active material layer is 4 mg/cm2 to 25 mg/cm2, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.

公开(公告)号：US20140162129A1

公开(公告)日：2014-06-12

申请号：US13831443

申请日：2013-03-14

申请人： SAMSUNG SDI CO., LTD.

发明人： Deok-Hyun Kim ,  Jae-Myung Kim ,  Kyu-Nam Joo ,  Soon-Sung Suh ,  Yeon-Gap Kim

IPC分类号： H01M4/36

CPC分类号： H01M4/364 ,  C01B33/18 ,  H01M4/0419 ,  H01M4/13 ,  H01M4/139 ,  H01M4/386 ,  H01M4/483 ,  H01M4/62 ,  H01M4/625 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122

摘要： In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.

摘要翻译： 在一方面，提供负极活性物质及其制备方法以及具有负极的负极活性物质的锂二次电池。 负极活性物质可以包括无定形氧化硅，结晶硅，碳，金属硅化物，球形颗粒和晶须。

公开(公告)号：US11444283B2

公开(公告)日：2022-09-13

申请号：US16753319

申请日：2018-08-27

申请人： Samsung SDI Co., Ltd.

发明人： Inoh Cha ,  Deok-Hyun Kim ,  Jinhee Lee

IPC分类号： H01M4/66 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

摘要： The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising the same. The negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cm2 to 30 mg/cm2, a loading level of the first active material layer is 4 mg/cm2 to 25 mg/cm2, a loading level of the second active material layer is 4 mg/cm2 to 25 mg/cm2, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.

公开(公告)号：US10096820B2

公开(公告)日：2018-10-09

申请号：US13956230

申请日：2013-07-31

申请人： Samsung SDI Co., Ltd.

发明人： Sang-Eun Park ,  Young-Ugk Kim ,  Jae-Myung Kim ,  Deok-Hyun Kim ,  Yeon-Gap Kim ,  Kyu-Nam Joo

IPC分类号： H01M4/134 ,  H01M4/04 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/131 ,  H01M4/62 ,  H01M4/02

摘要： In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed.

公开(公告)号：US20150056510A1

公开(公告)日：2015-02-26

申请号：US14333433

申请日：2014-07-16

申请人： Samsung SDI Co., Ltd.

发明人： Yu-Jeong Cho ,  Hyun-Ki Park ,  Sang-Hyuck Ahn ,  Deok-Hyun Kim ,  Xianhui Meng ,  Su-Kyung Lee ,  Yeon-Gap Kim ,  Young-Jin Choi

IPC分类号： H01M4/134 ,  H01M4/48 ,  H01M4/04 ,  H01M4/587 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38

CPC分类号： H01M4/134 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  Y02E60/122

摘要： Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material including SiOx particles, where 0

摘要翻译： 公开了一种用于可再充电锂电池的负极活性材料，其包括其中0

公开(公告)号：US10566605B2

公开(公告)日：2020-02-18

申请号：US14804192

申请日：2015-07-20

申请人： SAMSUNG SDI CO., LTD.

发明人： Hyun-Ki Park ,  Jae-Myung Kim ,  Deok-Hyun Kim

IPC分类号： H01M4/13 ,  H01M4/62 ,  H01M4/134 ,  H01M4/587 ,  H01M4/133 ,  H01M10/052 ,  H01M4/02 ,  H01M4/38

摘要： Provided are an electrode for a rechargeable lithium battery including a current collector and an active material layer positioned on the current collector, the active material layer includes an electrode active material; binder; a composite material including an acrylonitrile-based resin and a carbon-based material positioned on the surface of the acrylonitrile-based resin; and a pore, and a rechargeable lithium battery including the same.