公开(公告)号：US20210066712A1

公开(公告)日：2021-03-04

申请号：US16960791

申请日：2019-03-06

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Ki KIM ,  Soonrewl LEE ,  Young-Hun LEE ,  Jiyeon JANG ,  Ickkyu CHOI ,  Mingzi HONG ,  Soonkie HONG

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/04 ,  H01M10/0525

Abstract: The present invention relates to a positive electrode active material for a rechargeable lithium battery and a rechargeable lithium battery including same, wherein the positive electrode active material comprises a core and a surface layer formed on the surface of the core, the core comprising a first crystalline structure, the surface layer comprising a first crystalline structure and a second crystalline structure different from the first crystalline structure, the first crystalline structure being present more than the second crystalline structure in the surface layer.

公开(公告)号：US20190157671A1

公开(公告)日：2019-05-23

申请号：US16194006

申请日：2018-11-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Hun LEE ,  Hyunjei CHUNG ,  Yongmok CHO ,  Yoonyoung CHOI ,  Ickkyu CHOI

IPC: H01M4/525 ,  H01M10/0525

Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The positive active material for a rechargeable lithium battery may include a compound represented by Chemical Formula 1: Li1+x1Co1-x2-x3-x4M1x2M2x3M3x4O2.   Chemical Formula 1 In Chemical Formula 1, 0 0.01; M1 may be selected from Mg, Na, Ca, and a combination thereof; M2 may be selected from Al, B, Fe, and a combination thereof; and M3 may be selected from Ti, Zr, V, Cr, Mo, W, Mn, Ni, Cu, Ag, Zn, Si, Sn, N, P, S, F, Cl, and a combination thereof.

公开(公告)号：US20150228976A1

公开(公告)日：2015-08-13

申请号：US14593525

申请日：2015-01-09

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Ki KIM ,  Na-Ri PARK ,  Young-Hun LEE ,  Soon-Rewl LEE ,  Ick-Kyu CHOI ,  Yong-Chul PARK

IPC: H01M4/485 ,  H01M10/052 ,  H01M4/38

CPC classification number: H01M4/485 ,  C01G51/42 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/61 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/30

Abstract: Disclosed are a positive active material for a rechargeable lithium battery including a compound represented LixCo1−yTiyO2, wherein 1

Abstract translation: 公开了一种用于可再充电锂电池的正极活性材料，其包括表示为LixCo1-yTiyO2的化合物，其中1

公开(公告)号：US20220367860A1

公开(公告)日：2022-11-17

申请号：US17815427

申请日：2022-07-27

Applicant: Samsung SDI Co., Ltd.

Inventor： Yongmok CHO ,  Young-Hun LEE ,  Hyunjei CHUNG

IPC: H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/48

Abstract: A positive active material for a rechargeable lithium battery includes: a core having a layered structure; and a surface layer on at least one portion of the surface of the core and including an oxide, wherein the oxide includes at least one first element and at least one second element each selected from Ti, Zr, F, Mg, Al, P, and a combination thereof, the first element and the second element being different from one another, the first element included in the positive active material in an amount of about 0.01 mol % to about 0.2 mol % based on a total weight of the positive active material, and the second element included in the positive active material in an amount of about 0.02 mol % to about 0.5 mol % based on a total weight of the positive active material. A rechargeable lithium battery includes the positive active material.

公开(公告)号：US20190214639A1

公开(公告)日：2019-07-11

申请号：US16243594

申请日：2019-01-09

Applicant: Samsung SDI Co., Ltd.

Inventor： Yongmok CHO ,  Young-Hun LEE ,  Hyunjei CHUNG

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

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive active material for a rechargeable lithium battery includes: a core having a layered structure; and a surface layer on at least one portion of the surface of the core and including an oxide, wherein the oxide includes at least one first element and at least one second element each selected from Ti, Zr, F, Mg, Al, P, and a combination thereof, the first element and the second element being different from one another, the first element included in the positive active material in an amount of about 0.01 mol % to about 0.2 mol % based on a total weight of the positive active material, and the second element included in the positive active material in an amount of about 0.02 mol % to about 0.5 mol % based on a total weight of the positive active material. A rechargeable lithium battery includes the positive active material.

公开(公告)号：US20150010819A1

公开(公告)日：2015-01-08

申请号：US14102349

申请日：2013-12-10

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Hun LEE ,  Soon-Rewl LEE ,  Na-Ri PARK ,  Young-Ki KIM ,  Ick-Kyu CHOI ,  Yong-Chul PARK ,  Hong-Kyu CHOI

IPC: H01M4/525 ,  C01D15/02 ,  H01M4/52

CPC classification number: H01M4/525 ,  C01D15/02 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/523 ,  H01M10/0525

Abstract: A cathode active material including at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 2 to about 3 μm, and an average particle diameter of the secondary particle is in a range from about 5 to about 8 μm.

Abstract translation: 公开了一种包含至少两个一次粒子和阴极附聚物的阴极活性材料和含有它们的锂二次电池。 在正极活性物质中，二次粒子包括镍基锂过渡金属氧化物，一次粒子的平均粒径在约2〜约3μm的范围内，二次粒子的平均粒径为 在约5至约8μm的范围内。

公开(公告)号：US20200067090A1

公开(公告)日：2020-02-27

申请号：US16547422

申请日：2019-08-21

Applicant: Samsung SDI Co., Ltd.

Inventor： Soonkie HONG ,  Young-Ki KIM ,  Soonrewl LEE ,  Young-Hun LEE ,  Jiyeon JANG ,  Ickkyu CHOI ,  Mingzi HONG

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/131 ,  C01G51/00

Abstract: A positive active material for use in a positive electrode and a rechargeable lithium battery includes a lithium cobalt oxide including a secondary particle having an average particle diameter of about 15 μm to about 25 μm, wherein the secondary particle includes a plurality of primary particles having an average particle diameter of about 2 μm to about 10 μm, and the positive active material has a pellet density of greater than or equal to about 3.80 g/cm3. A method of manufacturing the positive active material includes heat-treating a cobalt-containing compound at a temperature of greater than or equal to about 900° C. to form a cobalt oxide comprising Co3O4 and CoO, and reacting the cobalt oxide with a lithium compound to prepare the lithium cobalt oxide.

公开(公告)号：US20170358794A1

公开(公告)日：2017-12-14

申请号：US15613716

申请日：2017-06-05

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Young-Hun LEE ,  Ji-Yeon JANG ,  Soon-Kie HONG ,  Young-Ki KIM ,  Soon-Rewl LEE ,  Ick-Kyu CHOI ,  Ji-Hyun KIM ,  Soo-Youn PARK ,  Hyun-Joo JE ,  Chang-Wook KIM ,  Kyu-Suk HAN

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/48 ,  H01M4/525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/366 ,  H01M4/483 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.

公开(公告)号：US20150214543A1

公开(公告)日：2015-07-30

申请号：US14452412

申请日：2014-08-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Young-Ki KIM ,  Young-Hun LEE ,  Ick-Kyu CHOI ,  Yong-Chul PARK ,  Soon-Rewl LEE

IPC: H01M4/36 ,  H01M10/052 ,  H01M4/58 ,  C01D15/02 ,  H01M4/485

Abstract: Provided are a positive active material, a lithium battery including the positive active material, and a method of manufacturing the positive active material. The positive active material includes a lithium molybdate composite having a core-shell structure. The lithium molybdate composite acts as a sacrificial positive electrode in a positive electrode of a battery. The positive active material is able to increase charge capacity of a lithium battery, and accordingly is able to improve lifetime properties of a lithium battery.

Abstract translation: 提供正极活性物质，包括正极活性物质的锂电池和制造正极活性物质的方法。 正极活性物质包括具有核 - 壳结构的钼酸锂复合物。 钼酸锂复合物在电池的正极中用作牺牲正极。 正极活性物质能够增加锂电池的充电容量，因此能够提高锂电池的寿命性能。