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公开(公告)号：US20240030408A1
公开(公告)日：2024-01-25
申请号：US18265599
申请日：2021-12-17
Applicant: UMICORE
Inventor： Jens Martin PAULSEN , Shinichi KUMAKURA , Liang ZHU , JiHye KIM , JiHoon KANG , HyeJeong YANG , YuRi LEE
CPC classification number: H01M4/364 , H01M4/525 , H01M4/485 , H01M2004/028
Abstract: A positive electrode active material for solid state rechargeable batteries, whereby the positive electrode active material is a powder which comprises Li, NI, and 0, wherein M′ consists of Co in a content x superior or equal to 2.0 mol % and inferior or equal to 35.0 mol %, Mn in a content y superior or equal to 0 mol % and inferior or equal to 35.0 mol %, A in a content m superior or equal to 0 mol % and inferior or equal to 5 mol %, whereby A comprises at least one element of the group consisting of: Al, Ba, B, Mg, Nb, Sr, Ti, W, S, Ca, Cr, Zn, V, Y, Si, and Zr, Ni in a content of 100-x-y-m mol %, a first compound which comprises Li2WO4 and a second compound which comprises WO3, whereby the powder is a single-crystalline powder, whereby the positive electrode active material comprises Li in a molar ratio of Li/(Co+Mn+Ni+A) of at least 0.9 and at most 1.1, whereby the positive electrode active material has a tap density which is at least 1.0 gr/cm3 and at most 3.0 g/cm3.
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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.
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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.
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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
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.
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