公开(公告)号：US10608251B2

公开(公告)日：2020-03-31

申请号：US15037003

申请日：2015-02-26

Applicant: LG Chem, Ltd.

Inventor： Jin Hyung Lim ,  Ho Suk Shin ,  Dong Hun Lee ,  Hyun Jin Oh ,  Joo Hong Jin ,  Wang Mo Jung

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/58 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/50 ,  H01M4/52 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

Abstract: The present disclosure relates to a positive electrode active material which reduces lithium by-products and improves structural stability and includes a lithium-nickel based transition metal composite oxide in which an alkaline earth metal having oxidation number of +2 is doped and a phosphate coated layer formed on the outer surface of the composite oxide. Accordingly, a second battery including the positive electrode active material has excellent capacity characteristics, and also improves structural stability during charging/discharging and prevents swelling, thereby being capable of exhibiting excellent life characteristics. Therefore, the present invention may be easily applied to industry in need thereof, and particularly to electric vehicles industry requiring high capacity and long-term life characteristics.

公开(公告)号：US20160002063A1

公开(公告)日：2016-01-07

申请号：US14441580

申请日：2014-02-11

Applicant: LG CHEM, LTD.

Inventor： Jinhyung Lim ,  Sung-Kyun Chang ,  Won Seok Chang ,  Sin Young Park ,  Ho Suk Shin ,  Hyun Jin Oh ,  Jung Min Han ,  In Sung Uhm ,  Wang Mo Jung ,  Dong Hun Lee

IPC: C01G53/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

CPC classification number: C01G53/04 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/11 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

Abstract: Disclosed are a transition metal precursor for preparation of a lithium transition metal oxide, in which a ratio of tap density of the precursor to average particle diameter D50 of the precursor satisfies the condition represented by Equation 1 below, and a lithium transition metal oxide prepared using the same. 0

Abstract translation: 公开了一种用于制备锂过渡金属氧化物的过渡金属前体，其中前体的振实密度与前体的平均粒径D50的比率满足下面的等式1所示的条件，以及锂过渡金属氧化物，其使用 一样。 0

公开(公告)号：US10056605B2

公开(公告)日：2018-08-21

申请号：US14437079

申请日：2014-10-29

Applicant: LG Chem, Ltd.

Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

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

CPC classification number: H01M4/366 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/028

Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

公开(公告)号：US20160293951A1

公开(公告)日：2016-10-06

申请号：US15037003

申请日：2015-02-26

Applicant: LG CHEM, LTD.

Inventor： Jin Hyung Lim ,  Ho Suk Shin ,  Dong Hun Lee ,  Hyun Jin Oh ,  Joo Hong Jin ,  Wang Mo Jung

IPC: H01M4/525 ,  H01M4/1315 ,  H01M4/131 ,  H01M4/136 ,  H01M4/04 ,  H01M4/505 ,  H01M4/50 ,  H01M4/58 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/52

CPC classification number: H01M4/525 ,  H01M4/0471 ,  H01M4/0497 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/366 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present disclosure relates to a positive electrode active material which reduces lithium by-products and improves structural stability and includes a lithium-nickel based transition metal composite oxide in which an alkaline earth metal having oxidation number of +2 is doped and a phosphate coated layer formed on the outer surface of the composite oxide. Accordingly, a second battery including the positive electrode active material has excellent capacity characteristics, and also improves structural stability during charging/discharging and prevents swelling, thereby being capable of exhibiting excellent life characteristics. Therefore, the present invention may be easily applied to industry in need thereof, and particularly to electric vehicles industry requiring high capacity and long-term life characteristics.

Abstract translation: 本公开内容涉及减少锂副产物并提高结构稳定性的正极活性材料，并且包括其中掺杂了氧化数为+2的碱土金属和磷酸盐涂层的锂镍基过渡金属复合氧化物 形成在复合氧化物的外表面上。 因此，包括正极活性物质的第二电池具有优异的容量特性，并且还提高了充电/放电期间的结构稳定性，并且防止了膨胀，从而能够表现出优异的寿命特性。 因此，本发明可以容易地应用于需要的工业，特别是需要高容量和长期使用寿命的电动汽车工业。

公开(公告)号：US11577969B2

公开(公告)日：2023-02-14

申请号：US14441580

申请日：2014-02-11

Applicant: LG Chem, Ltd.

Inventor： Jinhyung Lim ,  Sung-Kyun Chang ,  Won Seok Chang ,  Sin Young Park ,  Ho Suk Shin ,  Hyun Jin Oh ,  Jung Min Han ,  In Sung Uhm ,  Wang Mo Jung ,  Dong Hun Lee

IPC: C01G53/04 ,  C01G53/00 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02

Abstract: Disclosed are a transition metal precursor for preparation of a lithium transition metal oxide, in which a ratio of tap density of the precursor to average particle diameter D50 of the precursor satisfies the condition represented by Equation 1 below, and a lithium transition metal oxide prepared using the same. 0

公开(公告)号：US20220135428A1

公开(公告)日：2022-05-05

申请号：US17578881

申请日：2022-01-19

Applicant: LG Chem, Ltd.

Inventor： Jinhyung Lim ,  Sung-Kyun Chang ,  Won Seok Chang ,  Sin Young Park ,  Ho Suk Shin ,  Hyun Jin Oh ,  Jung Min Han ,  In Sung Uhm ,  Wang Mo Jung ,  Dong Hun Lee

IPC: C01G53/04 ,  C01G53/00 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/505 ,  H01M4/525

Abstract: Disclosed are a lithium transition metal oxide and a lithium secondary battery, in which a ratio of average particle diameter D50 of the lithium transition metal oxide to average particle diameter D50 of a transition metal precursor for preparation of the lithium transition metal oxide satisfies the condition represented by Equation 3 below: 0

公开(公告)号：US10529985B2

公开(公告)日：2020-01-07

申请号：US16058594

申请日：2018-08-08

Applicant: LG Chem, Ltd.

Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

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

Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

公开(公告)号：US20180351169A1

公开(公告)日：2018-12-06

申请号：US16058594

申请日：2018-08-08

Applicant: LG Chem, Ltd.

Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

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

Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

公开(公告)号：US20160013476A1

公开(公告)日：2016-01-14

申请号：US14437079

申请日：2014-10-29

Applicant: LG CHEM, LTD.

Inventor： Hyun Jin Oh ,  Ho Suk Shin ,  Jin Hyung Lim ,  Dong Hun Lee ,  Joo Hong Jin ,  Wang Mo Jung

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/04 ,  H01M4/485 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/505

CPC classification number: H01M4/366 ,  C01P2006/40 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/028

Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby.A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound.Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.

Abstract translation: 提供一种正极活性物质的制备方法，其包括通过干式混合锂过渡金属氧化物和含硼化合物并进行热处理而用锂硼氧化物涂覆锂过渡金属氧化物的表面，并进行热处理 由此准备。 根据本发明实施方案的制备阴极活性材料的方法可以通过在含硼化合物的熔点附近进行热处理，容易地将存在于锂过渡金属氧化物中的锂杂质转化为结构稳定的锂硼氧化物 。 此外，即使在低热处理温度下也可以形成涂覆层，其中锂硼氧化物以与含硼化合物的使用量成比例的量均匀地涂覆。