公开(公告)号：US11335907B2

公开(公告)日：2022-05-17

申请号：US17019626

申请日：2020-09-14

申请人： Umicore ,  Umicore Korea Ltd.

发明人： Maxime Blangero ,  Da-In Choi ,  WooRam Cho ,  JiHye Kim

IPC分类号： H01M4/525 ,  H01M4/505 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/1391 ,  H01M10/052 ,  H01M4/131 ,  H01M4/02

摘要： A powderous positive electrode material for a lithium secondary battery has the general formula Li1+x[Ni1−a−b−cMaM′bM″c]1−xO2−z. M is one or more elements of the group Mn, Zr and Ti. M′ is one or more elements of the group Al, B and Co. M″ is a dopant different from M and M′, and x, a, b and c are expressed in mol with −0.02≤x≤0.02, 0≤c≤0.05, 0.10≤(a+b)≤0.65 and 0≤z≤0.05. The material has an unconstrained cumulative volume particle size distribution value (Γ0(D10P=0)), a cumulative volume particle size distribution value after having been pressed at a pressure of 200 MPa (ΓP(D10P=200)) and a cumulative volume particle size distribution value after having been pressed at a pressure of 300 MPa (ΓP(D10P=300)). When ΓP(D10P=200) is compared to Γ0(D10P=0), the relative increase in value is less than 100%. When ΓP(D10P=300) is compared to Γ0(D10P=0), the relative increase in value is less than 120%.

公开(公告)号：US10833328B2

公开(公告)日：2020-11-10

申请号：US15317161

申请日：2015-06-01

申请人： Umicore ,  Umicore Korea Ltd.

发明人： Maxime Blangero ,  Da-In Choi ,  WooRam Cho ,  JiHye Kim

IPC分类号： H01M4/525 ,  H01M4/505 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/1391 ,  H01M10/052 ,  H01M4/131 ,  H01M4/02

摘要： A powderous positive electrode material for a lithium secondary battery, the material having the general formula Li1+x[Ni1−a−b−cMaM′bM″c]1−xO2−z; M being either one or more elements of the group Mn, Zr and Ti, M′ being either one or more elements of the group Al, B and Co, M″ being a dopant different from M and M′, x, a, b and c being expressed in mol with −0.02≤x≤0.02, 0≤c≤0.05, 0.10≤(a+b)≤0.65 and 0≤z≤0.05; and wherein the powderous material is characterized by having a BET value ≤0.37 m2/g, a Dmax

公开(公告)号：US11811061B2

公开(公告)日：2023-11-07

申请号：US17718515

申请日：2022-04-12

申请人： Umicore ,  Umicore Korea Ltd.

发明人： Maxime Blangero ,  Da-In Choi ,  WooRam Cho ,  JiHye Kim

IPC分类号： H01M4/525 ,  H01M4/505 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/1391 ,  H01M10/052 ,  H01M4/131 ,  H01M4/02

CPC分类号： H01M4/525 ,  C01G53/42 ,  C01G53/50 ,  H01M4/505 ,  H01M10/0525 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/1391 ,  H01M10/052 ,  H01M2004/028

摘要： A powderous positive electrode material for a lithium secondary battery has the general formula Li1+x[Ni1−a−b−cMaM′bM″c]1−xO2−z. M is one or more elements of the group Mn, Zr and Ti. M′ is one or more elements of the group Al, B and Co. M″ is a dopant different from M and M′, and x, a, b and c are expressed in mol with −0.02≤x≤0.02, 0≤c≤0.05, 0.10≤(a+b)≤0.65 and 0≤z≤0.05. The material has an unconstrained cumulative volume particle size distribution value (Γ0(D10P=0)), a cumulative volume particle size distribution value after having been pressed at a pressure of 200 MPa (ΓP(D10P=200)) and a cumulative volume particle size distribution value after having been pressed at a pressure of 300 MPa (ΓP(D10P=300)). When ΓP(D10P=200) is compared to Γ0(D10P=0), the relative increase in value is less than 100%. When ΓP(D10P=300) is compared to Γ0(D10P=0), the relative increase in value is less than 120%.