公开(公告)号：US20150034865A1

公开(公告)日：2015-02-05

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: H01M4/505 ,  C01G53/00 ,  H01M4/525

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

Abstract translation: 公开了用于制备锂复合过渡金属氧化物的过渡金属前体，所述过渡金属前体包括由下式1表示的复合过渡金属化合物和烃化合物及其制备方法：MnaMb（OH1-x） 2（1）其中M为选自Ni，Co，Mn，Al，Cu，Fe，Mg，B，Cr和第二周期过渡金属中的至少两种; 0.4＆nlE; a＆nlE; 1; 0＆nlE; b＆nlE; 0.6; a + b＆nlE; 1; 0

公开(公告)号：US20200091511A1

公开(公告)日：2020-03-19

申请号：US15746910

申请日：2017-03-22

Applicant: LG Chem, Ltd.

Inventor： Sung Bin Park ,  Dong Hun Lee ,  Hye Lim Jeon ,  Wang Mo Jung ,  Seong Hoon Kang

IPC: H01M4/40 ,  H01M4/131 ,  H01M10/0525

Abstract: The present invention provides a negative electrode active material for a secondary battery, the negative electrode active material including a core that includes a lithium titanium oxide and a surface treatment layer located on a surface of the core, wherein the surface treatment layer includes a boron-containing lithium oxide at an amount that allows a boron content to have a molar ratio of 0.002 to 0.02 with respect to 1 mole of the lithium titanium oxide, and when 2 g of the negative electrode active material is titrated at pH 5 or lower using 0.1 M HCl, a titrated amount is 0.9 to 1.5 ml, and a secondary battery including the same. The negative electrode active material exhibits an excellent capacity recovery rate and an output characteristic when applied to a battery and is capable of reducing gas generation by preventing electrolyte decomposition.

公开(公告)号：US10573888B2

公开(公告)日：2020-02-25

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 ,  H01M4/62 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/1315 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

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：US10516186B2

公开(公告)日：2019-12-24

申请号：US15740531

申请日：2016-11-24

Applicant: LG CHEM, LTD.

Inventor： Sung Bin Park ,  Hye Lim Jeon ,  Woo Yeon Kong ,  Wang Mo Jung ,  Seong Hoon Kang

IPC: H01M4/13 ,  H01M10/052 ,  H01M4/62 ,  H01M4/36 ,  H01M2/16 ,  H01M4/131 ,  H01M4/1391 ,  H01M10/0569 ,  H01M10/0585 ,  H01M4/485 ,  H01M4/02

Abstract: The present invention provides a lithium secondary battery, including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a separator provided between the positive electrode and the negative electrode, wherein the negative electrode active material may include a titanium-based composite, wherein, when the lithium secondary battery is charged to SOC 50 under C-rate conditions of 0.1 to 40 C, the titanium-based composite has a ratio of the peak area of a plane (400) and the peak area of a plane (111) of 0.76 or more in a measured X-ray diffraction spectrum (XRD). Therefore, the present invention may provide a lithium secondary battery having excellent output characteristics and a battery pack in which a BMS prediction algorithm is simplified.

公开(公告)号：US20190252679A1

公开(公告)日：2019-08-15

申请号：US16394624

申请日：2019-04-25

Applicant: LG Chem, Ltd.

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

IPC: H01M4/505 ,  C01G45/00 ,  C01G51/00 ,  C01G53/00 ,  C01G45/12 ,  H01M10/052

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

公开(公告)号：US20190148727A1

公开(公告)日：2019-05-16

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 ,  H01M10/052 ,  C01G51/00 ,  H01M4/505 ,  C01G53/00

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：US20180351171A1

公开(公告)日：2018-12-06

申请号：US15761649

申请日：2017-02-03

Applicant: LG Chem, Ltd.

Inventor： Hye Lim Jeon ,  Dong Hun Lee ,  Sung Bin Park ,  Wang Mo Jung ,  Seong Hoon Kang

IPC: H01M4/485 ,  H01M10/0525 ,  C01G23/00

CPC classification number: H01M4/485 ,  C01G23/005 ,  C01G23/006 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/40 ,  H01M4/131 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The present invention relates to an active material for a lithium secondary battery, which includes a secondary particle formed by agglomeration of primary particles which include a lithium titanium composite oxide represented by Formula 1 or Formula 2, wherein a pore volume is in a range of 0.001 cm3/g to 0.05 cm3/g, and a method of preparing the same, wherein the active material for a lithium secondary battery according to the present invention may maintain an adequate pore volume even during rolling, because strength of the secondary particle is improved by controlling a particle diameter of the primary particle by introducing a metallic element.

公开(公告)号：US20160181609A1

公开(公告)日：2016-06-23

申请号：US14907742

申请日：2014-08-19

Applicant: LG CHEM, LTD.

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

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

CPC classification number: H01M4/525 ,  C01G51/006 ,  C01G51/50 ,  C01G53/50 ,  C01P2006/40 ,  H01M4/505 ,  H01M10/052 ,  H01M2004/028 ,  Y02T10/7011

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≦y≦0.3 and 0≦z≦0.2; and A is at least one element selected the group consisting of Al, Mg, Ti, Zr, Sr, W, Nb, Mo, Ga, and Ni.

Abstract translation: 本发明公开了一种锂 - 钴系复合氧化物，其特征在于，锂 - 钴系复合氧化物在充电状态（SOC）为50％以上的情况下维持单个O 3相的晶体结构， 基于理论量：LixCo1-y-zMnyAzO2（1）其中0.95＆nlE; x＆nlE; 1.15,0＆amp; nlE; y＆nlE; 0.3和0＆amp; nlE; z＆nlE; 0.2; A是选自Al，Mg，Ti，Zr，Sr，W，Nb，Mo，Ga和Ni中的至少一种元素。

公开(公告)号：US20160141619A1

公开(公告)日：2016-05-19

申请号：US14770170

申请日：2014-04-08

Applicant: LG CHEM, LTD.

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

IPC: H01M4/505 ,  H01M10/0525

CPC classification number: H01M4/505 ,  C01G53/56 ,  C01P2002/32 ,  C01P2006/40 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

Abstract: Disclosed is a lithium manganese (Mn)-based oxide including Mn as an essential transition metal and having a layered crystal structure, in which the amount of Mn is greater than that of other transition metal(s), the lithium manganese-based oxide exhibits flat level section characteristics in which release of oxygen occurs together with lithium deintercalation during first charging in a high voltage range of 4.4 V or higher, and at least one of a transition metal layer including Mn and an oxygen layer is substituted or doped with a pillar element.

Abstract translation: 公开了包含Mn作为必需的过渡金属并且具有层状晶体结构的锰酸锰（Mn）基氧化物，其中Mn的量大于其它过渡金属的量，所述锂锰基氧化物表现出 在4.4V以上的高电压范围中的第一次充电期间，与脱锂一起发生氧的平坦部分特性，以及包括Mn和氧层的过渡金属层中的至少一个被取代或掺杂有柱 元件。

公开(公告)号：US20150132651A1

公开(公告)日：2015-05-14

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 ,  H01M4/485 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/04 ,  H01M4/525 ,  H01M4/1315

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.

Abstract translation: 本发明提供一种正极活性物质，其包括通过下述式1表示的锂过渡金属氧化物与涂料前体：LixMO2（1）的反应形成在正极活性物质的表面上的包含M的复合涂层，其中M 由MnaM'1-b表示，M'为选自Al，Mg，Ni，Co，Cr，V，Fe，Cu，Zn，Ti和B中的至少一种，0.95＆nlE; x＆ 和0.5＆nlE; a＆nlE; 1。 包括正极活性物质的锂二次电池由于优异的稳定性而具有改善的寿命和速率特性。