公开(公告)号：US20250054967A1

公开(公告)日：2025-02-13

申请号：US18719283

申请日：2022-12-16

Applicant: Umicore

Inventor： Shinichi KUMAKURA ,  Veerle GOOSSENS ,  TaeHyeon YANG

IPC: H01M4/525 ,  C01G53/00 ,  H01M10/0562

Abstract: A positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Mn in a content y, Co in a content z, D in a content a, Zr in a content b, wherein 55.0 mol %≤x≤95.0 mol %, 0.0 mol %≤y≤40.0 mol %, 0.0 mol %≤z≤40.0 mol %, 0.0 mol %≤a≤2.0 mol %, and 0.01 mol %≤b≤5.0 mol %. D is at least one element other than Li, Ni, Mn, Co, and O. The positive electrode active material has a Zr content ZrX and a carbon content C. ZrX is expressed as a molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr. C is expressed in wt. % by total weight of the positive electrode active material. The ratio of ZrX to C is between 52−0.413·x and 42−0.413·x.

公开(公告)号：US20240063433A1

公开(公告)日：2024-02-22

申请号：US18268293

申请日：2021-12-23

Applicant: UMICORE

Inventor： Shinichi KUMAKURA ,  Masataka KUBO

IPC: H01M10/0565 ,  H01M10/0525

CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M2300/0082

Abstract: A polymer electrolyte suitable for use in lithium-ion secondary batteries is obtained by reaction between: at least one polyether polymer [polymer (P)], said polymer (P) comprising: at least 70.0% by moles of oxyethylene units; from 0.0 to 10.0% by moles of oxypropylene units; and from 1.00 to 4.0% by moles of recurring units derived from at least one monomer and at least one polysiloxane compound. Said at least one polysiloxane compound is grafted to said at least one polymer (P) through reaction of at least a fraction of the —CH═CH2 moiety of monomer (M) with the H—Si moiety of the polysiloxane compound.

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：US20180166686A1

公开(公告)日：2018-06-14

申请号：US15575462

申请日：2016-05-20

Applicant: Umicore ,  Tokyo University of Science Foundation

Inventor： Shinichi KUMAKURA ,  Shinichi KOMABA ,  Kei KUBOTA ,  Yoshiyuki TAHARA

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/054 ,  H01M10/058 ,  C01G45/12 ,  C01G53/00

Abstract: A sodium transition metal based cathode material for a rechargeable sodium battery, having a P2 orthorhombic layered bronze crystal structure with space group Cmcm, and having a composition NaxMyMn1-yLiy′AzO2 with 0.60 0.