公开(公告)号：US20240030425A1

公开(公告)日：2024-01-25

申请号：US18265587

申请日：2021-12-17

Applicant: UMICORE

Inventor： Shinichi KUMAKURA ,  TaeHyeon YANG

IPC: H01M4/505 ,  H01M4/525 ,  H01M4/36 ,  C01G53/00 ,  C01G41/00

CPC classification number: H01M4/505 ,  H01M4/525 ,  H01M4/366 ,  C01G53/44 ,  C01G41/00 ,  H01M2004/028

Abstract: Method for manufacturing positive electrode active material for batteries comprising Li, O and M, wherein M consists of: —Co between 5 and 35 mol %; —Mn less than 35 mol %; —A less than 10 mol %, A being an element from: B, Mg, Al, Nb, Ti, W, Y, Ca, S, P, Zr, Sn, Si and W, and—The balance Ni, Which comprises: Step 1: preparing a liquid slurry of a lithium mixed metal oxide powder, Step 2: mixing the powder before or after or during step 1 with a cation selected from: Ala3+, La3+, Co2+, Co3+, Mn2+, Mn3+, Mn4+, Mn6+, Zn2+, Cu+, Cu2+, B3+, Mg2+, and with an anion having a general formula A′yOz′−x′, wherein A′ is: B, Al, Sn, Si, P, W, wherein 0.5≤x≤4, 0.5≤y′≤2 and 1≤z′≤≤12; Step 3: drying said slurry; Step 4: heating the slurry resulting from steps 1 and 2 or the dried slurry from step 3.

公开(公告)号：US20240300824A1

公开(公告)日：2024-09-12

申请号：US18277543

申请日：2022-02-24

Applicant: UMICORE

Inventor： Jens Martin PAULSEN ,  Shinichi KUMAKURA ,  TaeHyeon YANG ,  HyeJeong YANG ,  JiHoon KANG ,  JinDoo OH ,  JooEun HYOUNG

IPC: C01G53/00

CPC classification number: C01G53/50 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/40 ,  C01P2006/80

Abstract: Positive electrode active material for solid-state batteries, comprising Li, M′, and oxygen, wherein M′ comprises:



Ni in a content x between 70.0 mol % and 95.0 mol %,
Co in a content y between 0.0 mol % and 40.0 mol %,
Mn in a content z between 0.0 mol % and 40.0 mol %,
dopants in a content a between 0.0 mol % and 2.0 mol %,
Zr in a content b between 0.1 mol % and 5.0 mol %,
wherein x+y+z+a+b is 100.0 mol %,

wherein











Zr
A

=

b

(

x
+
y
+
z
+
b

)



,




wherein the positive electrode active material has a Zr content ZrB is expressed as molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr all as measured by XPS analysis,

wherein ZrB/ZrA>50.0,

the positive electrode active material comprising secondary particles having a plurality of primary particles,

said primary particles having an average diameter of at least 250 nm.