公开(公告)号：US20240039041A1

公开(公告)日：2024-02-01

申请号：US18227582

申请日：2023-07-28

Applicant: SAMSUNG SDI CO., LTD. ,  HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Pilsang YUN ,  Hyunbeom KIM ,  Suk-Gi HONG ,  Myeongju HA ,  Hwichul YANG

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/008

Abstract: A solid electrolyte includes sulfide-based solid electrolyte particles and lithium-metal-oxide on the surface of the particles, wherein in an X-ray diffraction analysis of the solid electrolyte, a full width at half maximum of a main peak is less than or equal to about 0.160.

公开(公告)号：US20220328809A1

公开(公告)日：2022-10-13

申请号：US17708303

申请日：2022-03-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Byungjin CHOI ,  Suk-Gi HONG ,  Youngsoo KIM ,  Donghee YEON ,  Pilsang YUN ,  Sangil HAN

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0585 ,  H01M10/0562 ,  H01M4/38 ,  H01M4/40 ,  C01G53/00 ,  C01G23/04

Abstract: A composite cathode active material, a preparation method thereof, a cathode layer for an all-solid-state battery, and an all-solid-state battery including the cathode layer, the composite cathode active material for the all-solid-state battery including a secondary particle including a plurality of primary particles; and a buffer layer on a surface of the secondary particle, wherein the secondary particle includes a nickel lithium transition metal oxide represented by Formula 1, and the buffer layer includes a metal oxide represented by Formula 2, LiaNi1-bMbO2  Formula 1 LixAy-1Ey2Oz  Formula 2

公开(公告)号：US20190326596A1

公开(公告)日：2019-10-24

申请号：US16462912

申请日：2017-12-04

Applicant: Samsung SDI Co., Ltd.

Inventor： Pilsang YUN ,  Jongmin KIM ,  Hyunbeom KIM ,  Wooyoung YANG ,  Jangsuk HYUN

IPC: H01M4/525 ,  C01G53/04 ,  H01M4/505 ,  H01M10/052

Abstract: Provided are a nickel-based active material precursor for a lithium secondary battery including a porous core and a shell on the porous core, the shell having a radial arrangement structure with a higher density than that of the porous core, wherein the nickel-based active material precursor have a size of 9 μm to 14 μm, and the porous core has a volume of about 5% by volume to about 20% by volume based on the total volume of the nickel-based active material precursor; a method of preparing the nickel-based active material precursor; a nickel-based active material produced from the nickel-based active material; and a lithium secondary battery including a cathode containing the nickel-based active material.

公开(公告)号：US20250132379A1

公开(公告)日：2025-04-24

申请号：US18676695

申请日：2024-05-29

Applicant: SAMSUNG SDI CO., LTD. ,  HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Suk-Gi HONG ,  Myeongiu HA ,  Hwichul YANG ,  Pilsang YUN ,  Hyunbeom KIM ,  Young Gyoon RYU ,  Kyusung PARK ,  Yongjun JANG ,  Sunho CHOI ,  Sungman CHO ,  Seonghyeon CHOI ,  Yonggu KIM ,  Saheum KIM

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/04 ,  H01M4/62

Abstract: A solid electrolyte, a positive electrode, and an all-solid-state rechargeable battery, the solid electrolyte includes solid ion conductor particles; and a coating layer on a surface of the solid ion conductor particles, wherein the coating layer includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, Li3+aM1bX16+c  [Chemical Formula 1] LiX2.  [Chemical Formula 2]

公开(公告)号：US20240128500A1

公开(公告)日：2024-04-18

申请号：US18378907

申请日：2023-10-11

Applicant: SAMSUNG SDI CO., LTD. ,  HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Suk-Gi HONG ,  Myeongju HA ,  Hwichul YANG ,  Pilsang YUN ,  Hyungbeom KIM ,  Young Gyoon RYU ,  Kyusung PARK ,  Saheum KIM ,  Yongjun JANG ,  Yonggu KIM ,  Sungman CHO ,  Sunho CHOI ,  Seonghyeon CHOI

IPC: H01M10/0562 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/008 ,  H01M2300/0094

Abstract: A solid electrolyte, including sulfide-based solid electrolyte particles and a coating layer disposed on the surface of the sulfide-based solid electrolyte particles and including a metal alkoxide.

公开(公告)号：US20230327101A1

公开(公告)日：2023-10-12

申请号：US17989547

申请日：2022-11-17

Applicant: SAMSUNG SDI CO., LTD

Inventor： Pilsang YUN ,  Hyunbeom KIM ,  Hanseul LEE ,  Do-Yu KIM ,  Yongchan YOU

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/131

CPC classification number: H01M4/525 ,  C01G53/42 ,  H01M4/131 ,  H01M2004/028

Abstract: A positive electrode active material for a rechargeable lithium battery, and a rechargeable lithium battery including the same are provided. The positive electrode active material includes a lithium nickel-based composite oxide wherein the positive electrode active material is in a form of secondary particles in which a plurality of primary particles are aggregated and at least a portion of the primary particles are radially arranged, in a cross-section of the secondary particles, a number ratio of the primary particles having a cross-sectional area of less than about 0.1 µm2 is greater than or equal to about 65%, and a full width at half maximum (FWHM) of the peak corresponding to the (003) plane in the X-ray diffraction analysis for the positive electrode active material is less than or equal to about 0.125.

公开(公告)号：US20230307695A1

公开(公告)日：2023-09-28

申请号：US18081543

申请日：2022-12-14

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Pilsang YUN ,  Hyunbeom KIM ,  Do-Yu KIM ,  Yongchan YOU

IPC: H01M10/0525 ,  H01M10/0562 ,  H01M4/525 ,  H01M4/62 ,  H01M4/1391 ,  H01M4/04

CPC classification number: H01M10/0525 ,  H01M10/0562 ,  H01M4/525 ,  H01M4/621 ,  H01M4/1391 ,  H01M4/0471 ,  H01M2300/0068 ,  H01M2004/021

Abstract: A positive electrode for an all-solid-state battery, a method of preparing the same, and an all-solid-state battery including the same are provided. The positive electrode for an all-solid-state battery includes a positive electrode active material including a first positive electrode active material including a lithium nickel-based composite oxide and being in a form of secondary particles in which a plurality of primary particles are aggregated and at least a portion of the primary particles are radially arranged; a second positive electrode active material including a lithium nickel-based composite oxide and being in a form of single particles; a solid electrolyte; a conductive agent; and a binder.

公开(公告)号：US20220328823A1

公开(公告)日：2022-10-13

申请号：US17708267

申请日：2022-03-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Byungjin CHOI ,  Suk-Gi HONG ,  Youngsoo KIM ,  Donghee YEON ,  Pilsang YUN ,  Sangil HAN

IPC: H01M4/525 ,  H01M10/0562 ,  H01M4/38 ,  H01M4/04

Abstract: A composite cathode active material for an all-solid-state battery including a sulfide solid electrolyte, a preparation method thereof, a cathode layer for an all-solid-state battery, and an all-solid-state battery including the cathode layer, the composite cathode active material including a secondary particle including a plurality of primary particles; and a buffer layer on a surface of the secondary particle, wherein the secondary particle includes a nickel lithium transition metal oxide represented by Formula 1 (LiaNi1-bMbO2), the buffer layer includes a first buffer layer adjacent to a surface of the secondary particle and including an oxide represented by Formula 2 (LixAyOz); and a second buffer layer including an oxide represented by Formula 3 (LixEyOz).

公开(公告)号：US20190393502A1

公开(公告)日：2019-12-26

申请号：US16452282

申请日：2019-06-25

Applicant: Samsung SDI Co., Ltd.

Inventor： Pilsang YUN ,  Jangsuk HYUN ,  Wooyoung YANG

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

Abstract: A nickel-based active material precursor for a lithium secondary battery includes: a secondary particle including a plurality of particulate structures, wherein each particulate structure includes a porous core portion and a shell portion, the shell portion including primary particles radially arranged on the porous core portion; and the secondary particle has a plurality of radial centers. When the nickel-based active material precursor is used, a nickel-based positive active material having a short lithium ion diffusion distance, in which intercalation and deintercalation of lithium are facilitated, may be obtained. A lithium secondary battery manufactured using the positive active material may exhibit enhanced lithium availability, and may exhibit enhanced capacity and lifespan due to suppression of crack formation in the active material during charging and discharging.

公开(公告)号：US20230352658A1

公开(公告)日：2023-11-02

申请号：US18150097

申请日：2023-01-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Pilsang YUN ,  Hyunbeom KIM ,  Hanseul LEE ,  Do-Yu KIM

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/525 ,  H01M4/04 ,  H01M50/46 ,  H01M10/0525

CPC classification number: H01M4/364 ,  H01M4/62 ,  H01M4/525 ,  H01M4/0471 ,  H01M50/46 ,  H01M10/0525 ,  H01M2004/028

Abstract: A method of preparing a positive electrode active material for a rechargeable lithium battery is provided to include: mixing a first nickel-based composite hydroxide in a form of a secondary particle in which a plurality of primary particles are aggregated and at least a portion of the primary particles have a radially arranged structure, a second lithium nickel-based composite oxide having a monolith structure, a lithium raw material, and a boron raw material; and performing heat-treatment.