公开(公告)号：US20230122856A1

公开(公告)日：2023-04-20

申请号：US17966593

申请日：2022-10-14

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyo-jung SONG ,  Kyoseon KOO ,  Minjae KIM ,  Junghyun NAM ,  Jeunggi MOON ,  Mihwa YANG ,  Duckjae YOU ,  Jinhee LEE

IPC: H01M10/0583 ,  H01M10/0525 ,  H01M50/46

Abstract: An electrode assembly and a rechargeable lithium battery including the same are disclosed herein. The electrode assembly includes an electrode and a separator, wherein the electrode includes a current collector, an electrode active material layer on the current collector, and an adhesive layer on the electrode active material layer; and wherein the separator has a larger surface area than the adhesive layer of the electrode; and a surface of the separator opposing the adhesive layer of the electrode is divided into an adhesive region in contact with the adhesive layer of the electrode and an overhang region not in contact with the adhesive layer of the electrode.

公开(公告)号：US20170263921A1

公开(公告)日：2017-09-14

申请号：US15451984

申请日：2017-03-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeonjoo CHOI ,  Junghyun NAM ,  Bokkyu JEON ,  Hoon SEOK

IPC: H01M4/36 ,  H01M10/052 ,  H01M4/58 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0565

CPC classification number: H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/622 ,  H01M4/624 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0565 ,  H01M2004/028 ,  H01M2300/0082

Abstract: A positive active material composition for a lithium secondary battery includes a positive active material that allows intercalation and deintercalation of lithium ions, a binder, and a conductive agent. The conductive agent includes a first conductive agent having an average particle diameter (D50) ranging from about 20 nanometers (nm) to about 40 nm and a second conductive agent having a D50 ranging from about 1 micrometer (μm) to about 5 μm.

公开(公告)号：US20240162565A1

公开(公告)日：2024-05-16

申请号：US18229587

申请日：2023-08-02

Applicant: SAMSUNG SDI CO., LTD. ,  Industry-Academic Cooperation Foundation, Dankook University

Inventor： Duckjae YOU ,  Kyoseon KOO ,  Junghyun NAM ,  Jeunggi MOON ,  Hyo-jung SONG ,  Mihwa YANG ,  Hosung YANG ,  Jinhee LEE ,  Jinyoung JANG ,  Byoung-Sun LEE ,  Hyeji SHIN ,  Heeyeon KIM

IPC: H01M50/434 ,  H01M4/38 ,  H01M4/485 ,  H01M4/62 ,  H01M50/46

CPC classification number: H01M50/434 ,  H01M4/386 ,  H01M4/485 ,  H01M4/623 ,  H01M50/46 ,  H01M10/052

Abstract: A separator for a rechargeable lithium battery, negative electrode-separator assembly for a rechargeable lithium battery, and rechargeable lithium battery are provided. The separator includes a ceramic layer including ceramic particles and a binder, and a functional layer on the ceramic layer including inorganic particles having a working potential (vs Li/Li+) of greater than or equal to about 1 V and a binder.

公开(公告)号：US20230109733A1

公开(公告)日：2023-04-13

申请号：US17937260

申请日：2022-09-30

Applicant: Samsung SDI Co., Ltd.

Inventor： Jongheon SEOL ,  Minjae KIM ,  Soochan KIM ,  Hyeseung JUNG ,  Chaewoong CHO ,  Minyoung HONG ,  Junghyun NAM ,  Sungsoo HAN

IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/04

Abstract: Disclosed is a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode includes a current collector and a negative active material layer on the current collector and including a negative active material and a conductive material, the negative active material including a silicon-based active material and the conductive material includes carbon nanotube, wherein the negative active material and the conductive material are included in the negative active material layer in order to satisfy a relationship of Equation 1 and Equation 2. 26

公开(公告)号：US20230317960A1

公开(公告)日：2023-10-05

申请号：US18003976

申请日：2021-08-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Mihwa YANG ,  Junghyun NAM ,  Hyo-jung SONG ,  Hyejin YOON ,  Jinhee LEE

IPC: H01M4/62 ,  H01M4/587 ,  H01M10/052 ,  H01M4/133

CPC classification number: H01M4/628 ,  H01M4/587 ,  H01M10/052 ,  H01M4/133 ,  H01M2004/027

Abstract: The present invention relates to an electrode assembly for a lithium secondary battery and a lithium secondary battery including the same, the electrode assembly comprising: a current collector, a negative electrode comprising a negative electrode active material layer located on the current collector and an organic-inorganic composite layer integrated with the negative electrode active material layer, and a positive electrode, wherein the organic-inorganic composite layer comprises an organic layer and an inorganic layer.

公开(公告)号：US20210057702A1

公开(公告)日：2021-02-25

申请号：US16981261

申请日：2019-03-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Hoon SEOK ,  Junghyun NAM ,  Heeeun YOO ,  Yeonhee YOON ,  Kyuseo LEE ,  Bokkyu JEON ,  Jaehwan HA

IPC: H01M2/16 ,  H01M10/0525

Abstract: The present invention relates to an electrode assembly and a rechargeable battery including same. The electrode assembly may comprise: a negative electrode, a positive electrode, and a separator interposed between the negative electrode and the positive electrode and including a first surface facing the negative electrode and a second surface facing the positive electrode, a first functional layer positioned on the first surface and including a fibrous polymer and a heat resistant polymer, and a second functional layer positioned on the second surface and including an inorganic particle and an organic particle.

公开(公告)号：US20190148764A1

公开(公告)日：2019-05-16

申请号：US16300029

申请日：2016-09-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Hoon SEOK ,  Junghyun NAM ,  Bokkyu JEON ,  Yeonjoo CHOI

IPC: H01M10/056 ,  H01M10/052

Abstract: Disclosed are a composite electrolyte, including: a network web formed of a fiber containing a polymer and inorganic particles, wherein a content of the inorganic particles is 5 wt % or less based on a total weight of the composite electrolyte, a preparing method thereof, and a lithium metal battery including the same.

公开(公告)号：US20230290958A1

公开(公告)日：2023-09-14

申请号：US18014019

申请日：2022-02-21

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhee LEE ,  Junghyun NAM ,  Hyo-jung SONG ,  Mihwa YANG ,  Hyejin YOON

IPC: H01M4/62 ,  H01M10/052

CPC classification number: H01M4/628 ,  H01M10/052

Abstract: The present invention relates to an electrode assembly for a lithium secondary battery, and a lithium secondary battery comprising same, the electrode assembly comprising a current collector, an anode comprising an anode active material layer located on the current collector and a functional layer integrated with the anode active material layer; and a cathode, wherein the functional layer includes at least one inorganic layer and the peel strength of the functional layer is 0.2 N/m or greater.

公开(公告)号：US20190334157A1

公开(公告)日：2019-10-31

申请号：US16324077

申请日：2017-10-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Hoon SEOK ,  Junghyun NAM ,  Heeeun YOO ,  Yeonhee YOON ,  Bokkyu JEON ,  Mokyun JIN

IPC: H01M2/34 ,  H01M10/0525 ,  H01M4/13 ,  H01M4/62

Abstract: The present disclosure relates to an electrode for a lithium secondary battery, the electrode comprising: a current collector layer; a functional layer disposed on the current collector layer; and an active material layer disposed on the functional layer, wherein the functional layer includes a polymer particle having a weight-average molecular weight of 200 to 50,000.

公开(公告)号：US20190319229A1

公开(公告)日：2019-10-17

申请号：US16376959

申请日：2019-04-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Jaehwan HA ,  Kijun KIM ,  Junghyun NAM ,  Hoon SEOK ,  Heeeun YOO ,  Yeonhee YOON ,  Kyuseo LEE ,  Bokkyu JEON

IPC: H01M2/10 ,  H01M10/0587 ,  H01M10/0585

Abstract: An electrode assembly and a rechargeable battery including the same are disclosed. The electrode assembly includes a plurality of unit cells overlapping in a thickness direction of the plurality of unit cells and a functional unit cell disposed with the plurality of unit cells. The functional unit cell includes a positive electrode. The positive electrode includes a positive current collector, a positive active material layer on at least one surface of the positive current collector and including a positive active material having a first reference potential, and a functional layer on the positive active material layer and including an active material having a lower reference potential than the first reference potential.