公开(公告)号：US09601770B2

公开(公告)日：2017-03-21

申请号：US14504526

申请日：2014-10-02

Applicant: LG Chem, Ltd.

Inventor： Byung Chun Park ,  Sun Sik Shin ,  Sang Min Park ,  Ho Suk Shin ,  Hye Lim Jeon ,  Bo Ram Lee

IPC: H01M4/28 ,  H01M4/505 ,  H01M4/131 ,  H01M4/36 ,  C01G45/00 ,  C01G53/00 ,  H01M4/525 ,  C01G45/02

CPC classification number: H01M4/505 ,  C01G45/00 ,  C01G45/02 ,  C01G53/006 ,  C01G53/44 ,  C01P2004/03 ,  H01M4/131 ,  H01M4/362 ,  H01M4/525

Abstract: Disclosed are a transition metal precursor for preparation of a lithium composite transition metal oxide, the transition metal precursor including a composite transition metal compound represented by Formula 1 below and a hydrocarbon compound, and a method of preparing the same: MnaMb(OH1-x)2  (1) wherein M is at least two selected from the group consisting of Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr, and second period transition metals; 0.4≦a≦1; 0≦b≦0.6; a+b≦1; and 0≦x≦0.5, in which the transition metal precursor includes a particular composite transition metal compound and a hydrocarbon compound, and thus, when a lithium composite transition metal oxide is prepared using the same, carbon may be present in lithium transition metal oxide particles and/or on surfaces thereof, whereby a secondary battery including the lithium composite transition metal oxide exhibits excellent rate characteristics and long lifespan.

公开(公告)号：US20160164087A1

公开(公告)日：2016-06-09

申请号：US14906488

申请日：2014-08-18

Applicant: LG CHEM, LTD.

Inventor： Sang Min Park ,  Sun Sik Shin ,  Byung Chun Park ,  Hye Lim Jeon ,  Bo Ram Lee

IPC: H01M4/505 ,  H01M10/052 ,  C01G53/00

CPC classification number: H01M4/505 ,  C01G45/006 ,  C01G45/1228 ,  C01G45/1257 ,  C01G51/006 ,  C01G51/50 ,  C01G51/56 ,  C01G53/006 ,  C01G53/50 ,  C01G53/56 ,  C01P2004/03 ,  C01P2006/40 ,  H01M10/052 ,  H01M2004/028 ,  Y02T10/7011

Abstract: Disclosed are a precursor for preparation of a lithium composite transition metal oxide, a method for preparing the same and a lithium composite transition metal oxide obtained from the same. More particularly, the transition metal precursor which has a composition represented by Formula 1 below and is prepared in an aqueous transition metal solution, mixed with a transition metal-containing salt, including an alkaline material, the method for preparing the same and the lithium composite transition metal oxide obtained from the same are disclosed. MnaMb(OH1-x)2-yAy   (1) wherein M is at least one selected form the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected form the group consisting of anions of PO4, BO3, CO3, F and NO3, and 0.5≦a≦1.0; 0≦b≦0.5; a+b=1; 0

Abstract translation: 公开了锂复合过渡金属氧化物的制备前体，其制备方法以及由其制备的锂复合过渡金属氧化物。 更具体地说，具有下述式1所示的组成的过渡金属前体，其与含有过渡金属的盐（包括碱性物质）混合的过渡金属水溶液，其制备方法和锂复合物 公开了从其获得的过渡金属氧化物。 MnaMb（OH1-x）2-yAy（1）其中M是选自Ni，Ti，Co，Al，Cu，Fe，Mg，B，Cr，Zr，Zn和II族过渡金属中的至少一种 ; A是至少一种选自PO4，BO3，CO3，F和NO3的阴离子的组，以及0.5和nlE; a＆nlE; 1.0; 0＆nlE; b＆nlE; 0.5; a + b = 1; 0

公开(公告)号：US20150056508A1

公开(公告)日：2015-02-26

申请号：US14533528

申请日：2014-11-05

Applicant: LG Chem, Ltd.

Inventor： Sun Sik Shin ,  Hye Lim Jeon ,  Bo Ram Lee ,  Hong Kyu Park

IPC: H01M4/131 ,  H01M4/58 ,  H01M4/36

CPC classification number: H01M4/131 ,  C01G23/005 ,  C01G45/1257 ,  C01G51/50 ,  C01P2004/03 ,  C01P2004/82 ,  C01P2004/84 ,  H01M4/364 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/052

Abstract: Disclosed is a cathode active material in which lithium cobalt oxide particles and manganese (Mn) or titanium (Ti)-containing lithium transition metal oxide particles co-exist and a method of preparing the same.

Abstract translation: 公开了一种其中钴酸锂颗粒和含锰（Mn）或含钛（Ti）的锂过渡金属氧化物颗粒共存的阴极活性材料及其制备方法。

公开(公告)号：US11870070B2

公开(公告)日：2024-01-09

申请号：US16771139

申请日：2019-01-23

Applicant: LG Chem, Ltd.

Inventor： So Ra Baek ,  Min Suk Kang ,  Sang Wook Lee ,  Wang Mo Jung ,  Dong Hun Lee ,  Hye Lim Jeon ,  Eun Sol Lho

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/13915 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/62 ,  C01G53/00 ,  C01B35/12 ,  H01M4/02

CPC classification number: H01M4/525 ,  C01B35/121 ,  C01G53/50 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/366 ,  H01M4/505 ,  H01M4/628 ,  H01M10/0525 ,  C01P2004/80 ,  C01P2006/40 ,  C01P2006/80 ,  H01M2004/028 ,  Y02E60/10

Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1.

LiaM1bOc  [Formula 1]



wherein, M1 is at least one selected from the group consisting of boron (B), aluminum (Al), silicon (Si), titanium (Ti), and phosphorus (P), and 1≤a≤4, 1≤b≤8, and 1≤c≤20.

公开(公告)号：US10964943B2

公开(公告)日：2021-03-30

申请号：US16241419

申请日：2019-01-07

Applicant: LG Chem, Ltd.

Inventor： Sun Sik Shin ,  Hye Lim Jeon ,  Myung Ki Lee ,  Geun Gi Min ,  Wang Mo Jung

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/052 ,  C01G51/00 ,  C01G53/00 ,  H01M4/02

Abstract: Disclosed is a lithium-cobalt based complex oxide represented by Formula 1 below including lithium, cobalt and manganese wherein the lithium-cobalt based complex oxide maintains a crystal structure of a single O3 phase at a state of charge (SOC) of 50% or more based on a theoretical amount: LixCo1-y-zMnyAzO2  (1) wherein 0.95≤x≤1.15, 0

公开(公告)号：US20210013511A1

公开(公告)日：2021-01-14

申请号：US17042518

申请日：2019-04-05

Applicant: LG Chem, Ltd.

Inventor： Seul Ki Kim ,  Hye Lim Jeon ,  Tae Gon Kim ,  Wang Mo Jung ,  Sang Wook Lee

IPC: H01M4/525 ,  H01M4/133 ,  H01M4/04 ,  H01M4/1393

Abstract: A positive electrode active material includes a core and a coating layer disposed on the core, wherein the core includes Li1+xMO2+y, wherein M is at least one element selected from the group consisting of nickel (Ni), cobalt (Co), and copper (Cu), and 1≤x≤5 and 0≤y≤2, and the coating layer includes carbon-based particles, wherein the carbon-based particle includes a structure in which a plurality of graphene sheets are connected, the carbon-based particle has an oxygen content of 1 wt % or more in the carbon-based particle, and the carbon-based particle has a D/G peak ratio of 1.55 or less during Raman spectrum measurement. A method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.

公开(公告)号：US20200266433A1

公开(公告)日：2020-08-20

申请号：US16647935

申请日：2018-09-19

Applicant: LG Chem, Ltd.

Inventor： Dong Hun Lee ,  Hye Lim Jeon ,  Sang Wook Lee ,  Eun Sol Lho ,  Wang Mo Jung ,  Min Suk Kang ,  So Ra Baek ,  Ji Young Park

IPC: H01M4/485 ,  H01M4/58 ,  H01M10/0525

Abstract: Provided are various embodiments of a positive electrode for a secondary battery, which in one embodiment includes a first positive electrode material mixture layer formed on a positive electrode collector, and a second positive electrode material mixture layer formed on the first positive electrode material mixture layer, wherein the first positive electrode material mixture layer has an operating voltage of 4.25 V to 6.0 V and includes an active material for overcharge which generates lithium and gas during charge; a method of preparing such a positive electrode for a secondary battery; and a lithium secondary battery including such a positive electrode.

公开(公告)号：US10573880B2

公开(公告)日：2020-02-25

申请号：US14533528

申请日：2014-11-05

Applicant: LG Chem, Ltd.

Inventor： Sun Sik Shin ,  Hye Lim Jeon ,  Bo Ram Lee ,  Hong Kyu Park

IPC: H01M4/131 ,  H01M4/36 ,  H01M4/58

Abstract: Disclosed is a cathode active material in which lithium cobalt oxide particles and manganese (Mn) or titanium (Ti)-containing lithium transition metal oxide particles co-exist and a method of preparing the same.

公开(公告)号：US20180248183A1

公开(公告)日：2018-08-30

申请号：US15964305

申请日：2018-04-27

Applicant: LG Chem, Ltd.

Inventor： Bo Ram Lee ,  Hye Lim Jeon ,  Sun Sik Shin ,  Sangwook Lee ,  Wang Mo Jung

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/525 ,  H01M4/485 ,  H01M4/1391 ,  H01M4/1315 ,  H01M4/131 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: Provided is a cathode active material including a complex coating layer, which includes M below, formed on a surface of the cathode active material through reaction of a lithium transition metal oxide represented by Formula 1 below with a coating precursor: LixMO2  (1) wherein M is represented by MnaM′1-b, M′ is at least one selected from the group consisting of Al, Mg, Ni, Co, Cr, V, Fe, Cu, Zn, Ti and B, 0.95≤x≤1.5, and 0.5≤a≤1. The lithium secondary battery including the cathode active material exhibits improved lifespan and rate characteristics due to superior stability.

公开(公告)号：US10014521B2

公开(公告)日：2018-07-03

申请号：US14597428

申请日：2015-01-15

Applicant: LG Chem, Ltd.

Inventor： Bo Ram Lee ,  Hye Lim Jeon ,  Sun Sik Shin ,  Sangwook Lee ,  Wang Mo Jung

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/04 ,  H01M4/1315 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: Provided is a cathode active material including a complex coating layer, which includes M below, formed on a surface of the cathode active material through reaction of a lithium transition metal oxide represented by Formula 1 below with a coating precursor: LixMO2  (1) wherein M is represented by MnaM′1-b, M′ is at least one selected from the group consisting of Al, Mg, Ni, Co, Cr, V, Fe, Cu, Zn, Ti and B, 0.95≤x≤51.5, and 0.5≤a≤1. The lithium secondary battery including the cathode active material exhibits improved lifespan and rate characteristics due to superior stability.