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：US20200220217A1

公开(公告)日：2020-07-09

申请号：US16682804

申请日：2019-11-13

Applicant: Samsung SDI Co., Ltd.

Inventor： Wonseok CHO ,  Pavel SHATUNOV ,  Olga TSAY ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  C07F7/10

Abstract: Disclosed herein is an additive for a lithium secondary battery, the additive including a compound represented by Formula 1. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive represented by Formula 1. A lithium secondary battery includes: a cathode; an anode; and the electrolyte including the additive represented by Formula 1.

公开(公告)号：US20250055143A1

公开(公告)日：2025-02-13

申请号：US18638438

申请日：2024-04-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Duckjae YOU ,  Hosung YANG ,  Changwon PARK ,  Jiye WOO ,  Seongho JEON

IPC: H01M50/494 ,  H01M10/052 ,  H01M50/42 ,  H01M50/426 ,  H01M50/431 ,  H01M50/443

Abstract: An electrode assembly and a rechargeable lithium battery including the same are provided. The electrode assembly includes a current collector; an electrode active material layer on the current collector; and a coating layer combined with the electrode active material layer. The coating layer includes polymer nanofibers each including a structural unit derived from a fluorine-based polymer and a structural unit derived from a nitrile-based polymer; and inorganic particles. The coating layer has a puncture strength of about 15 to about 100 gram force (gf) and a tensile strength of about 120 to about 1,000 kilogram force per square centimeter (kgf/cm2).

公开(公告)号：US20230122468A1

公开(公告)日：2023-04-20

申请号：US17963010

申请日：2022-10-10

Applicant: Samsung SDI Co., Ltd.

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

IPC: H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/587 ,  H01M4/38 ,  H01M4/36

Abstract: Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative electrode including a current collector, a negative active material layer on the current collector, including a silicon-based negative active material, and an adhesive layer on the negative active material layer, wherein the adhesive layer has a thickness of about 5 μm or less, the adhesive layer has an area of about 50 area % based on the total area of the negative active material layer, and the adhesive layer is positioned in a dot pattern.

公开(公告)号：US20200381781A1

公开(公告)日：2020-12-03

申请号：US16887035

申请日：2020-05-29

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Myungheui WOO ,  Pavel SHATUNOV ,  Olga TSAY ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Jeongmin SHIN ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/583

Abstract: An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive including a compound represented by Formula 1 below:

公开(公告)号：US20200266490A1

公开(公告)日：2020-08-20

申请号：US16597613

申请日：2019-10-09

Applicant: Samsung SDI Co., Ltd.

Inventor： Wonseok CHO ,  Pavel SHATUNOV ,  Olga TSAY ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Jeongmin SHIN ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/131

Abstract: A lithium secondary battery includes: a cathode, an anode; and an electrolyte between the cathode and the anode, wherein the cathode includes a cathode active material represented by Formula 1 below, and the electrolyte includes a lithium salt, a non-aqueous solvent, and a compound represented by Formula 2, where x, y, z, M, A, L1, a1, and R1 to R4 are defined as described in the disclosure.

公开(公告)号：US20220352502A1

公开(公告)日：2022-11-03

申请号：US17692704

申请日：2022-03-11

Applicant: Samsung SDI Co., Ltd.

Inventor： San MOON ,  Duckjae YOU ,  Jihyun JANG ,  Seongho JEON

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M4/58 ,  H01M10/0525

Abstract: Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode for a rechargeable lithium battery includes a current collector, a first positive electrode active material layer on the current collector and including a first positive electrode active material, and a second positive electrode active material layer on the first positive electrode active material layer and including a second positive electrode active material, wherein the first positive electrode active material layer includes ceramic particles, a particle diameter of each of the ceramic particles is in a range from about 10 nm to about 500 nm, and the ceramic particles are included only in the first positive electrode active material layer.

公开(公告)号：US20200343589A1

公开(公告)日：2020-10-29

申请号：US16857307

申请日：2020-04-24

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Harim LEE ,  Younghye KANG ,  Aeran KIM ,  Hyejin PARK ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Olga TSAY ,  Hyunbong CHOI ,  Pavel SHATUNOV

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  C07F7/10

Abstract: An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive comprising a compound represented by Formula 1 below:

公开(公告)号：US20200220215A1

公开(公告)日：2020-07-09

申请号：US16592667

申请日：2019-10-03

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyejin PARK ,  Younghye KANG ,  Aeran KIM ,  Myungheui WOO ,  Duckjae YOU ,  Taejin LEE ,  Harim LEE ,  Jinhyeok LIM ,  Wonseok CHO ,  Hyunbong CHOI

IPC: H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  C07F7/18

Abstract: An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where R1 to R4 are as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte.

公开(公告)号：US20230352749A1

公开(公告)日：2023-11-02

申请号：US18003688

申请日：2022-05-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Duckjae YOU ,  San MOON ,  Jihyun JANG ,  Seongho JEON

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/525

CPC classification number: H01M10/4235 ,  H01M4/131 ,  H01M4/525 ,  H01M2004/028

Abstract: Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, the positive electrode including a current collector and a positive electrode active material layer on the current collector, wherein the positive electrode active material layer includes a positive electrode active material and an aromatic monovalent carboxylic acid.