公开(公告)号：EP4456197A1

公开(公告)日：2024-10-30

申请号：EP22911777.5

申请日：2022-12-15

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： EUN, Tai Hee ,  MOON, Ji Woong ,  PARK, Yooncheol ,  YUN, Jeongsik ,  NAM, Sang Cheol

IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/62 ,  H01M4/131 ,  H01M10/0562 ,  H01M10/052 ,  H01M4/02

摘要： It is related to a positive active material for all-solid battery, a method of preparing the same, a positive electrode including the same, and an all-solid secondary battery including the same, comprising: a secondary particle formed by agglomeration of a primary particle of the positive active material with a layered crystal structure, wherein, the secondary particle has a plurality of internal pores, and the plurality of internal pores accounts for 5 to 15 volume% of the total volume of the secondary particle.

公开(公告)号：EP4456189A1

公开(公告)日：2024-10-30

申请号：EP22911788.2

申请日：2022-12-16

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  Posco Future M Co., Ltd

发明人： NAM, Sang Cheol ,  YU, Byong Yong ,  HONG, Kijoo ,  PARK, Jong Il ,  LEE, Sang Hyuk ,  CHOI, Kwon Young

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M10/052 ,  H01M4/02

摘要： The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a positive electrode including the same, and a lithium secondary battery including the same. A positive active material for lithium secondary batteries according to an exemplary embodiment include:
a first metal oxide, which includes nickel, cobalt and manganese, is in single particle form; and a second metal oxide that contains nickel, cobalt, and manganese and is in the form of a secondary particle containing a plurality of primary particles and has an average particle diameter D50 larger than that of the first metal oxide; wherein, a nickel content of the second metal oxide is 0.8 mol or more, based on 1 mole of the total of nickel, cobalt and manganese in the second metal oxide, and a nickel content of the first metal oxide is 0.03 mole to 0.17 mole more than the nickel content of the second metal oxide.

公开(公告)号：EP4456188A1

公开(公告)日：2024-10-30

申请号：EP22911780.9

申请日：2022-12-16

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  Posco Future M Co., Ltd

发明人： YU, Byong Yong ,  HONG, Kijoo ,  SONG, Jung Hoon ,  LEE, Sanghyuk ,  CHOI, Kwon Young ,  HAN, Chang Joo ,  NAM, Sang Cheol

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  H01M10/052 ,  C01G53/00 ,  H01M4/02

摘要： The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same. The positive active material for a lithium secondary battery according to an exemplary embodiment includes first lithium metal oxide that contains nickel, cobalt, manganese, and doping elements, is in the form of single particles, and has a unit cell volume of 101.50 Å or more.

公开(公告)号：EP4450155A1

公开(公告)日：2024-10-23

申请号：EP22907949.6

申请日：2022-12-15

申请人： POSCO Co., Ltd ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： HAN, Gi-Chun ,  KIM, Sang Won ,  KIM, Seung Goo ,  LEE, Seung Seok ,  KO, Young-Seon ,  SON, Young Geun ,  JEUNG, Kee Uek

IPC分类号： B01J20/02 ,  B01J20/04 ,  B01J20/08 ,  B01J20/10 ,  C02F1/28 ,  B01J20/28 ,  B01J20/30

摘要： The present exemplary embodiments relate to a sodium ion adsorbent, a method of manufacturing the same, and a method for removing sodium ions.
According to an exemplary embodiment, a sodium ion adsorbent for removing sodium ions may include a compound represented by Chemical Formula 1 below. [Chemical Formula 1] H x M 1-x AlSi 2 O 6 , in Chemical Formula 1, M is one or more elements selected from Na, K, Cs, and Rb, and 0

公开(公告)号：EP4266424A1

公开(公告)日：2023-10-25

申请号：EP21911454.3

申请日：2021-12-20

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  POSCO Chemical Co., Ltd

发明人： SONG, Jung Hoon ,  NAM, Sang Cheol ,  LEE, Sanghyuk ,  CHOI, Kwon Young ,  PARK, Inchul ,  KWON, Ohmin

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

摘要： The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt and manganese, and five types of doping elements doped on the metal oxide particles is provided.

公开(公告)号：EP4266422A1

公开(公告)日：2023-10-25

申请号：EP21911356.0

申请日：2021-12-13

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  POSCO Chemical Co., Ltd

发明人： SONG, Jung Hoon ,  NAM, Sang Cheol ,  LEE, Sanghyuk ,  CHOI, Kwon Young ,  PARK, Inchul ,  KWON, Ohmin

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

摘要： The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt, manganese and aluminum, and three types of doping elements doped on the metal oxide particle is provided.

公开(公告)号：EP4266407A1

公开(公告)日：2023-10-25

申请号：EP21911357.8

申请日：2021-12-13

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY ,  POSCO Chemical Co., Ltd

发明人： NAM, Sang Cheol ,  CHOI, Kwon Young ,  SONG, Jung Hoon ,  LEE, Sanghyuk

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  C01G53/00 ,  H01M10/052

摘要： The present exemplary embodiments provide a positive electrode active material, a manufacturing method thereof, and a lithium secondary battery including the same. The positive electrode active material according to an exemplary embodiment is a metal oxide particle including a center and a surface portion positioned on the surface of the center, but the metal oxide particle is composed of a single particle, and the surface portion includes a film in which no peak is observed during XRD measurement.

公开(公告)号：EP4266406A1

公开(公告)日：2023-10-25

申请号：EP21907177.6

申请日：2021-12-17

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： CHO, Moonkyu ,  KIM, Yong Jung ,  WOO, Jung Gyu ,  YOU, Seung Jae ,  PARK, Sun Jong ,  KANG, Eun-Tae

IPC分类号： H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M4/38 ,  H01M10/052

摘要： The present disclosure includes a negative active material manufacturing method for lithium secondary battery, comprising:
grinding the metal-based material into metal-based material nanoparticles through a grinding process; obtaining spherical particles by spheronizing the pulverized metal-based material nanoparticle, a conductive material, and a conductive additive together; obtaining a composite by complexing the spherical particles with an amorphous carbon-based precursor material; and carbonizing the composite; the conductive additive is a carbon nanotube; a content of the carbon nanotube is 0.2 to 2.3 wt% compared to the metal-based material nanoparticle in the composite, a negative active material according to the method, and a secondary battery including the same.

公开(公告)号：EP3901088A1

公开(公告)日：2021-10-27

申请号：EP19900603.2

申请日：2019-12-06

申请人： POSCO ,  Research Institute of Industrial Science & Technology

发明人： AN, Jung-Chul ,  PARK, Sei Min ,  LEE, Gang Ho ,  CHO, Moonkyu ,  KIM, Byoung Ju ,  YOON, Jong Hoon ,  JO, Hyun-Chul

IPC分类号： C01B32/205 ,  C01B32/21 ,  H01M4/587 ,  H01M10/0525

摘要： The present invention relates to a negative electrode active material of a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery using the same.
An embodiment of the present invention provides a negative electrode active material for a lithium secondary battery, including a graphite material including secondary particles, wherein the secondary particles are an assembly of a plurality of primary particles, the primary particles include green coke, and a ratio ((D90-D10)/D50) of a difference between a particle diameter D90 and a particle diameter D10 with respect to a particle diameter D50 of the secondary particles is 1.0 to 1.32.
An embodiment of the present invention provides a method for manufacturing a negative electrode active material for a lithium secondary battery, including: manufacturing primary particles by using a carbon raw material including green coke; manufacturing secondary particles by mixing the primary particles and a binder; carbonizing the secondary particles; and manufacturing a graphite material by graphitizing the carbonized secondary particles, wherein a particle diameter D50 of the primary particles is 5.5 to 10.0 µm.

公开(公告)号：EP3896760A1

公开(公告)日：2021-10-20

申请号：EP18943305.5

申请日：2018-12-13

申请人： POSCO ,  Research Institute of Industrial Science & Technology ,  POSCO Chemical Co., Ltd

发明人： NAM, Sang Cheol ,  KIM, Jae Han ,  KIM, Jeong Han ,  SONG, Jung Hoon

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052

摘要： The present disclosure relates to a positive electrode active material for lithium secondary battery comprising a first compound represented by Chemical Formula 1, and a second compound represented by Chemical Formula 2, wherein, a content of the first compound is 65 wt% or more based on 100 wt% of the positive electrode active material, and a lithium secondary battery comprising the same.

        [Chemical Formula 1]     Lia1 Nib1Coc1 Mn d1 M1 e1 M2 f1 O 2-f1

        [Chemical Formula 2]     Li a2 Ni b2 CO c2 Mn d2 M3 e2 M4 f2 O 2-f2

wherein, each composition and molar ratio of Chemical Formulas 1 and 2 are as defined in the specification.