公开(公告)号：US20180076454A1

公开(公告)日：2018-03-15

申请号：US15702048

申请日：2017-09-12

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Junseok PARK ,  Seonyoung KWON ,  Jihyun KIM ,  Jinhwa KIM ,  Dohyung PARK ,  Daehoe LEE

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

CPC classification number: H01M4/525 ,  H01M4/0497 ,  H01M4/52 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: A cobalt oxide for a lithium secondary battery, a method of preparing the cobalt oxide; a lithium cobalt oxide for a lithium secondary battery formed from the cobalt oxide; and a lithium secondary battery having a positive electrode including the lithium cobalt oxide, the cobalt oxide having a tap density of about 2.8 g/cc to about 3.0 g/cc, and an intensity ratio of about 0.8 to about 1.2 of a second peak at 2θ of about 31.3±1° to a first peak at 2θ of about 19±1° in X-ray diffraction spectra, as analyzed by X-ray diffraction.

公开(公告)号：US20160322633A1

公开(公告)日：2016-11-03

申请号：US15139814

申请日：2016-04-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jihyun KIM ,  Seonyoung KWON ,  Junseok PARK ,  Dohyung PARK

IPC: H01M4/485 ,  C01G51/00 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/04

CPC classification number: C01G51/42 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525

Abstract: A cobalt oxide for a lithium secondary battery, a lithium cobalt oxide, an associated method, and a lithium secondary battery, wherein the cobalt oxide composition includes particles having a particle strength of about 25 MPa to about 50 MPa, has a particle diameter D10 of about 14 μm to about 18 μm, and has a particle diameter difference between a particle diameter D90 and the particle diameter D10 of less than about 15 μm.

Abstract translation: 锂二次电池用氧化钴，锂钴氧化物，相关方法和锂二次电池，其中所述氧化钴组合物包含粒子强度为约25MPa〜约50MPa的粒子，其粒径D10为 约14μm至约18μm，并且具有小于约15μm的粒径D90与粒径D10之间的粒径差。

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：US20160064730A1

公开(公告)日：2016-03-03

申请号：US14688277

申请日：2015-04-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Haneol PARK ,  Seonyoung KWON ,  Minhan KIM ,  Jihyun KIM ,  Joong-Ho MOON ,  Kyounghyun KIM ,  Dohyung PARK ,  Jongseo CHOI

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

CPC classification number: H01M4/366 ,  C01B25/45 ,  C01G31/006 ,  C01G53/50 ,  C01P2004/03 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525

Abstract: A composite positive electrode active material includes a lithium transition metal oxide represented by at least one of LiNixCoyMnzO2 (Formula 1) and aLi2MnO3.(1−a)LiMO2 (Formula 2). In Formula 1, and a vanadium-based compound including a polyanion. In Formula 1, 0

Abstract translation: 复合正极活性物质包括由LiNixCoyMnzO2（式1）和LiMnO3中的至少一种表示的锂过渡金属氧化物（1-a）LiMO 2（式2）。 在式1中，和含有聚阴离子的钒基化合物。 在式1中，0

公开(公告)号：US20180102537A1

公开(公告)日：2018-04-12

申请号：US15722953

申请日：2017-10-02

Applicant: Samsung SDI Co., Ltd.

Inventor： Jihyun KIM ,  Changwook KIM ,  Sooyoun PARK ,  Kyouyoon SHEEM ,  Hyunjoo JE

IPC: H01M4/485 ,  H01M4/38 ,  H01M4/134

CPC classification number: H01M4/485 ,  C01G23/047 ,  C01G51/42 ,  C01P2002/50 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  H01M2/263 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/62 ,  H01M4/623 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The positive active material includes a lithium intercalation compound and a Si-containing TiO2 present on the surface of the compound. When TiO2 is present on the surface of the lithium intercalation compound, the rate characteristics and low temperature characteristics of batteries including the lithium intercalation compound may be improved. Further, when Si-containing TiO2 is present on the surface of the lithium intercalation compound, the cycle-life characteristic and high temperature storage characteristics of batteries including the lithium intercalation compound may be further improved, compared to batteries having only TiO2. As such, the positive active material including Si-containing TiO2 provides a rechargeable lithium battery having excellent rate capability, low temperature characteristics, cycle-life characteristics and high temperature storage characteristics.

公开(公告)号：US20210135217A1

公开(公告)日：2021-05-06

申请号：US17144381

申请日：2021-01-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Junseok PARK ,  Seonyoung KWON ,  Jihyun KIM ,  Jinhwa KIM ,  Dohyung PARK ,  Daehoe LEE

IPC: H01M4/525 ,  H01M10/052 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/52

Abstract: A cobalt oxide for a lithium secondary battery, a method of preparing the cobalt oxide; a lithium cobalt oxide for a lithium secondary battery formed from the cobalt oxide; and a lithium secondary battery having a positive electrode including the lithium cobalt oxide, the cobalt oxide having a tap density of about 2.8 g/cc to about 3.0 g/cc, and an intensity ratio of about 0.8 to about 1.2 of a second peak at 2θ of about 31.3±1° to a first peak at 2θ of about 19±1° in X-ray diffraction spectra, as analyzed by X-ray diffraction.

公开(公告)号：US20170155105A1

公开(公告)日：2017-06-01

申请号：US15360794

申请日：2016-11-23

Applicant: Samsung SDI Co., Ltd.

Inventor： Jihyun KIM ,  Hyunki JUNG ,  Hyorim BAK ,  Jungho HA

IPC: H01M2/12 ,  H01M2/02

CPC classification number: H01M2/0413 ,  H01M2/1241 ,  H01M2/345 ,  H01M2200/20

Abstract: A secondary battery which can improve safety is provided. The secondary battery includes an electrode assembly, a can accommodating the electrode assembly and a cap assembly coupled to a top portion of the can, wherein the cap assembly comprises a cap-up, a safety vent installed under the cap-up, a cap-down installed under the safety vent, an insulator interposed between the safety vent and the cap-down, and a sub-plate positioned on a bottom surface of the cap-down, and an insulation layer is formed on a top surface of the cap-down.