公开(公告)号：US20240294394A1

公开(公告)日：2024-09-05

申请号：US18031191

申请日：2021-09-29

申请人： L&F CO., LTD.

发明人： Sun Hong PARK ,  Won Gyeong KANG ,  Sung Kyun CHANG ,  Doe Hyoung KIM

IPC分类号： C01G53/00 ,  H01M10/052

CPC分类号： C01G53/006 ,  H01M10/052 ,  C01P2002/74

摘要： Disclosed is a composite transition metal precursor for a cathode active material containing Ni and at least one transition metal, wherein a molar amount of Ni is 60% or more based on a total amount of transition metal and a ratio (I101/I001) of an intensity of a (101) plane to an intensity of a (001) plane ranges from 0.7 to 1.1 in XRD analysis.

公开(公告)号：US20240038973A1

公开(公告)日：2024-02-01

申请号：US17764626

申请日：2021-10-22

申请人： L&F CO., LTD.

发明人： Hyun Gyu HAN ,  Han Ah KIM ,  Gi Hwan CHANG ,  Jeong A GU ,  Sung Kyun CHANG ,  Doe Hyoung KIM

IPC分类号： H01M4/38 ,  H01M4/525 ,  H01M4/505 ,  H01M4/46 ,  H01M10/052

CPC分类号： H01M4/382 ,  H01M4/525 ,  H01M4/505 ,  H01M4/463 ,  H01M10/052 ,  H01M2004/028

摘要： Disclosed, as a particle for cathode active materials, is a novel one-body particle for cathode active materials, including a core of lithium transition metal oxide containing Ni and a surface-layer portion formed on at least a part of the core, wherein the surface-layer portion contains both Co and a structure-stabilizing element, the core is present as a non-aggregated primary particle, and the structure-stabilizing element has a bond dissociation energy (BDE) with oxygen (O) greater than a bond dissociation energy (BDE) of Co and oxygen (O).

公开(公告)号：US20230110681A1

公开(公告)日：2023-04-13

申请号：US17912823

申请日：2021-03-11

申请人： L&F CO., LTD.

发明人： Jun Ho SHIN ,  Sung Kyun CHANG ,  Seung Hwan KIM ,  Jong Wan KIM ,  Ji Woo OH ,  Doe Hyoung KIM

IPC分类号： F27B7/28 ,  C04B35/56 ,  C23C4/129 ,  C23C4/06 ,  C23C4/10

摘要： Disclosed is a coating material for coating a surface of a kiln for preparing an active material, the coating material being represented by the following Formula 1: NiaXz  (1) wherein an equation of a+z=1 is satisfied, with the proviso that 0.2≤a

公开(公告)号：US20220376239A1

公开(公告)日：2022-11-24

申请号：US17606819

申请日：2019-09-25

申请人： L&F CO., LTD.

发明人： Sung Kyun CHANG ,  Sang Hoon JEON ,  Sunhong PARK ,  Doe Hyoung KIM

IPC分类号： H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M10/0525

摘要： Disclosed are novel precursor particles for preparing a cathode active material including transition metal precursor particles containing one or more transition metals, and one or more of an alkali metal and an alkaline earth metal, wherein the alkali metal and the alkaline earth metal are contained in one or more of inner and outer parts of the transition metal precursor particles, and a novel precursor powder including the novel precursor particles.

公开(公告)号：US11495791B2

公开(公告)日：2022-11-08

申请号：US16620042

申请日：2017-11-27

申请人： L&F CO., LTD.

发明人： Ji Hyun Shin ,  Sun Hye Lim ,  Joo Hyeong Woo ,  Su An Choi ,  Sang Hoon Jeon ,  Ji Sun An

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M10/04 ,  H01M10/0525

摘要： The present invention relates to a cathode active material, and a lithium secondary battery comprising the same, the present invention provides a cathode active material, represented by the following Chemical Formula 1, wherein I003/I104 ratio is 1.6 or more, and R-factor value represented by the following Formula 1 is 0.40 to 0.44, and c-axis lattice constant (c) and a-axis lattice constant (a) satisfy 3(a)+5.555≤(c)≤3(a)+5.580: R-factor=(I102+I006)/(I101)  Formula 1 wherein I003, I006, I101, I102, and I104 are the intensity of diffraction peaks on the (003), (006), (101), (102), and (104) planes by X-ray diffraction analysis using CuKα-rays, Liα[(NixCoy)1-βAβ]Oz  Chemical Formula 1 in the Chemical Formula 1, 0.95≤α≤1.1, 0.75≤x≤0.95, 0.03≤y≤0.25, 0

公开(公告)号：US10938031B2

公开(公告)日：2021-03-02

申请号：US16083795

申请日：2016-11-28

申请人： L&F CO., LTD.

发明人： Su An Choi ,  Ho Jun Jeong ,  Sang Hoon Jeon ,  Ji Woon Yang ,  Jun Ho Shin ,  Jin Seong Jeong ,  Ji Sun An

IPC分类号： H01M4/13 ,  H01M4/50 ,  H01M4/52 ,  C01G51/00 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/36 ,  H01M4/58 ,  H01M4/02

摘要： The present invention relates to a metal oxide powder, a method of preparing the same, and a lithium secondary battery using the same, which comprises: a metal oxide powder is represented by Formula (1), Lix(M1-m-zAmDz)Ot  Formula (1) in the above Formula (1), 0.85≤x≤1.2, 0≤m≤0.01, 0 3.5.

公开(公告)号：US10673071B2

公开(公告)日：2020-06-02

申请号：US16083765

申请日：2017-03-02

申请人： L&F CO., LTD.

发明人： Su An Choi ,  Sang Hoon Jeon ,  Su Youn Kwon ,  Mi Hye Yun ,  Yu Jin Sohn ,  Ji Sun An ,  Bong Jun Jeong

IPC分类号： H01M4/505 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/62 ,  H01M4/36 ,  H01M4/525 ,  H01M4/02

摘要： In an embodiment of the present invention, a positive active material for a lithium secondary battery is represented by Formula 1, and includes a core including a compound having a core portion and a surface portion, and the compound has a lower L3/L2 intensity ratio of Ni in the surface portion than an L3/L2 intensity ratio of Ni in the core portion. Li[LizA(1-z-a)Da]EbO2-b  [Formula 1] (In the above formula (1), A is NiαCoβMnγ, D is at least one element selected from the group consisting of Na, K, Mg, Ca, Sr, Ni, Co, Ti, Al, B, Si, Sn, Mn, Cr, Fe, V, Zr, Nb, and Mo, E is at least one element selected from the group consisting of P, F, and S, −0.05≤z≤0.1, 0≤a≤0.05, 0≤b≤0.05, 0.3≤α≤0.9, 0.05≤β≤0.4, and 0.05≤γ≤0.4.)(The L3/L2 intensity ratio of Ni is the oxidation number of Ni measured by electronic energy loss spectroscopy (EELS).).

公开(公告)号：US09917297B2

公开(公告)日：2018-03-13

申请号：US15144988

申请日：2016-05-03

申请人： L&F Co., Ltd.

发明人： Su An Choi ,  Sang-Hoon Jeon

IPC分类号： H01M4/131 ,  H01M8/04 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  C01D15/02 ,  H01M4/04 ,  H01M4/58 ,  H01M4/1391 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/131 ,  C01D15/02 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M8/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

摘要： Disclosed are a method for preparing a positive electrode active material for a lithium secondary battery and a positive electrode active material for a lithium secondary battery, the method including: preparing a mixture of a precursor represented by Chemical Formula 1 below, a lithium composite oxide represented by Chemical Formula 2 below and capable of intercalating/deintercalating lithium ions, and a lithium feed material; and firing the prepared mixture: A(OH)2-a   [Chemical Formula 1] Li[LizA(1-z-a)Da]EbO2-b   [Chemical Formula 2]

公开(公告)号：US20160276658A1

公开(公告)日：2016-09-22

申请号：US15171074

申请日：2016-06-02

申请人： L&F CO., LTD.

发明人： Su An Choi ,  Sang Hoon Jeon ,  Jin Gon Hong ,  Da Young Kim ,  Bong Jun Jeong

IPC分类号： H01M4/36 ,  H01M4/58 ,  H01M4/50 ,  H01M4/505 ,  H01M4/04 ,  H01M4/525 ,  H01M4/48 ,  H01M4/485 ,  H01M4/131 ,  H01M4/136 ,  H01M10/0525 ,  H01M4/52

CPC分类号： H01M4/366 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/136 ,  H01M4/364 ,  H01M4/483 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/582 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/028

摘要： There are provided a cathode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery containing the same. The cathode active material for a lithium secondary battery includes: a compound reversibly intercalating and deintercalating lithium; and a coating layer positioned on at least a portion of a surface of the compound, wherein the coating layer is a composite coating layer containing Li3PO4 and LiF, and further containing a lithium metal compound, a metal oxide, a metal fluoride compound, and/or a combination thereof.

摘要翻译： 提供了一种用于锂二次电池的正极活性材料，其制备方法和含有它的锂二次电池。 锂二次电池用正极活性物质包括：可逆地嵌入和脱嵌锂的化合物; 以及位于所述化合物的表面的至少一部分上的涂层，其中所述涂层是含有Li 3 PO 4和LiF的复合涂层，并且还含有锂金属化合物，金属氧化物，金属氟化物和/ 或其组合。

公开(公告)号：US20240327242A1

公开(公告)日：2024-10-03

申请号：US18578092

申请日：2022-07-18

申请人： L&F CO., LTD.

发明人： Sung Kyun CHANG ,  Sun Hong PARK ,  Hyun Do JEONG

IPC分类号： C01G53/00 ,  H01M4/525

CPC分类号： C01G53/50 ,  C01G53/40 ,  H01M4/525 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/52 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40

摘要： Disclosed is a transition metal-containing precursor for preparing a cathode active material for a lithium secondary battery, wherein the transition metal-containing precursor includes a first precursor and a second precursor having an average particle diameter (D50) smaller than that of the first precursor, and has a ratio of a BET of the first precursor to a BET of the second precursor (BET of first precursor/BET of second precursor) of 0.3 to 3.5.