公开(公告)号：US20190006679A1

公开(公告)日：2019-01-03

申请号：US16023238

申请日：2018-06-29

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changui JEONG ,  Jiyeon KWAK ,  Youngugk KIM ,  Uisong DO ,  Sangeun PARK ,  Yuntaek OH ,  Yongchan YOU ,  Inoh CHA ,  Heeseon CHOI

IPC: H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0587

Abstract: An anode includes a composite anode active material including a core and a coating layer on the core, the core including a metal alloyable with lithium. The coating layer includes a first polymer having a first functional group and a binder including a second polymer having a second functional group. The first polymer and the second polymer are cross-linked with each other via ester bonding between the first functional group and the second functional group.

公开(公告)号：US20160156028A1

公开(公告)日：2016-06-02

申请号：US14739124

申请日：2015-06-15

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyunjoo JE ,  Jihyun KIM ,  Changwook KIM ,  Yongchan YOU

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/505 ,  H01M4/525 ,  H01M4/136 ,  H01M4/131

Abstract: Provided are a positive active material, lithium batteries including the positive active material, and a method of preparing the positive active material. The positive electrode active material, includes a core including a compound capable of reversibly performing intercalation or deintercalation of lithium ions; and a coating layer including an inorganic material adhered to at least a portion of a surface of the core, the inorganic material having an apatite structure.

Abstract translation: 提供正极活性物质，包括正极活性物质的锂电池和制备正极活性物质的方法。 正极活性物质包括含有能够可逆地进行锂离子的插入或脱嵌的化合物的核心; 以及包含粘附到芯的表面的至少一部分的无机材料的涂层，所述无机材料具有磷灰石结构。

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：US20200373616A1

公开(公告)日：2020-11-26

申请号：US16638522

申请日：2018-08-01

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seonju CHOI ,  Kyoung Soo KIM ,  Yunhee KIM ,  Yongchan YOU ,  Erang CHO

IPC: H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0568

Abstract: A lithium secondary battery is disclosed. The lithium secondary battery according to an embodiment comprises: an anode; a cathode comprising a cathode active material; and a nonaqueous electrolyte, wherein the nonaqueous electrolyte comprises a nonaqueous organic solvent, a lithium salt, a first additive comprising at least one of compounds represented by chemical formulae 1-4, and a second additive comprising at least one of compounds represented by chemical formulae 5 to 6, and the cathode active material can comprise a compound containing 60 mol % or greater of Ni.

公开(公告)号：US20190312305A1

公开(公告)日：2019-10-10

申请号：US16315034

申请日：2017-07-12

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Myunghwan JEONG ,  Kyoungsoo KIM ,  Yongchan YOU ,  Manseok HAN ,  Taejeong KIM ,  Erang CHO

IPC: H01M10/0565 ,  H01M10/052 ,  H01M10/04 ,  C08L71/10 ,  C08G65/40 ,  C08G65/48

Abstract: Provided are a polymer represented by Formula 1, an electrolyte including the same, and a lithium battery including the polymer.

公开(公告)号：US20180026262A1

公开(公告)日：2018-01-25

申请号：US15621521

申请日：2017-06-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changui JEONG ,  Jiyeon KWAK ,  Yeongap KIM ,  Youngugk KIM ,  Uisong DO ,  Sangeun PARK ,  Yuntaek OH ,  Yongchan YOU ,  Inoh CHA ,  Heeseon CHOI

IPC: H01M4/36 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/587 ,  H01M4/525 ,  H01M10/0569 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/364 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2300/004

Abstract: A negative active material includes a silicon-based material core and a pitch coating layer on a surface of the silicon-based material core. The pitch coating layer includes a mesophase pitch.