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    BATTERY
    63.
    发明申请
    BATTERY 审中-公开

    公开(公告)号：US20200321609A1

    公开(公告)日：2020-10-08

    申请号：US16753429

    申请日：2018-09-12

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Stijn PUT ,  Daniël NELIS ,  Jean-Sébastien BRIDEL ,  Jeong-Rae KIM

    IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/0567 ,  H01M4/62 ,  H01M4/134 ,  H01M4/587

    Abstract: A lithium ion battery comprising a negative electrode and an electrolyte, whereby the negative electrode comprises composite particles, whereby the composite particles comprise silicon-based domains, whereby the composite particles comprise a matrix material in which the silicon-based domains are embedded, whereby the composite particles and the electrolyte have an interface, whereby at this interface there is a SEI layer, characterized in that the SEI layer comprises one or more compounds having carbon-carbon chemical bonds and the SEI layer comprises one or more compounds having carbon-oxygen chemical bonds, whereby a ratio, defined as the area of a first peak divided by the area of a second peak, is at least 1.30, whereby the first peak and second peak are peaks in an X-ray photoelectron spectroscopy measurement of the SEI, whereby the first peak represents C—C chemical bonds and whereby the second peak represents C—O chemical bonds.

    Precursor and method for preparing Ni based Li transition metal oxide cathodes for rechargeable batteries
    64.
    发明授权
    Precursor and method for preparing Ni based Li transition metal oxide cathodes for rechargeable batteries 有权

    公开(公告)号：US10756344B2

    公开(公告)日：2020-08-25

    申请号：US15757016

    申请日：2016-08-25

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Jens Paulsen ,  JiHye Kim ,  Jin-Doo Oh ,  Jing Zhang

    IPC: H01M4/525 ,  C01G53/00 ,  H01M4/131 ,  H01M4/02 ,  H01M4/505 ,  C01G51/00

    Abstract: A crystalline precursor compound is described for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1−a ((Niz(Ni1/2 Mn1/2)y Cox)1−k Ak)1+a O2, wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.55, A is a dopant, 0≤k≤0.1, and 0.04≤a≤0.50, wherein the precursor has a crystalline size L expressed in nm, with 77−(67*z)≤L≤97−(67*z). Also a method is described for manufacturing a positive electrode material having a general formula Li1−a′ ((Niz (Ni1/2 Mn1/2)y Cox)1−k Ak)1−a′ O2, wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.55, A is a dopant, 0≤k≤0.1, and 0.01≤a′≤0.10 by sintering the crystalline precursor compound in an oxidizing atmosphere at a temperature T between 800 and 1000° C., for a time t between 6 and 36 hrs.

    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY
    65.
    发明申请
    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY 审中-公开

    公开(公告)号：US20200024153A1

    公开(公告)日：2020-01-23

    申请号：US16488717

    申请日：2018-02-07

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Dae-Hyun KIM ,  Jens PAULSEN ,  JinDoo OH ,  Maxime BLANGERO

    IPC: C01G51/00 ,  H01M4/52 ,  H01M4/525

    Abstract: A method for manufacturing a cobalt based hydroxide carbonate compound having a malachite-rosasite mineral structure, comprising the steps of: —providing an first aqueous solution comprising a source of Co, —providing a second aqueous solution comprising Na2CO3, —mixing both solutions in a precipitation reactor at a temperature above 70° C., thereby precipitating a cobalt based hydroxide carbonate compound whilst evacuating from the reactor any CO2 formed by the precipitation reaction, wherein the residence time of the compound in the reactor is between 1 and 4 hours, and—recovering the cobalt based hydroxide carbonate compound. The cobalt based hydroxide carbonate compound is used as a precursor of a lithium cobalt based oxide usable as an active positive electrode material in lithium ion batteries.

    PRECURSOR AND METHOD FOR PREPARING Ni BASED CATHODE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    66.
    发明申请
    PRECURSOR AND METHOD FOR PREPARING Ni BASED CATHODE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：US20200006762A1

    公开(公告)日：2020-01-02

    申请号：US16487525

    申请日：2018-02-14

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Areum PARK ,  JiHye KIM ,  Song-Yi HAN ,  Jens Martin PAULSEN ,  Kyung-Tae LEE ,  Randy De Palma

    IPC: H01M4/505 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/525

    Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1−a((Niz(Ni1/2 Mn1/2)yCox)1−k Ak)1+aO2, wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.03≤a≤0.35, wherein the precursor has a crystalline size L expressed in nm, with 15≤L≤36. Also a method is described for manufacturing a positive electrode material having a general formula Li1+a′M′1−a−O2, with M′=(Niz(Ni1/2 Mn1/2)yCOx)1−k Ak, wherein x+y+z=1. 0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.01≤a′≤0.10, by sintering the lithium deficient precursor powder mixed with either one of LiOH, LiOH.H2O, in an oxidizing atmosphere at a temperature between 800 and 1000° C., for a time between 6 and 36 hrs.

    Low porosity electrodes for rechargeable batteries
    67.
    发明授权
    Low porosity electrodes for rechargeable batteries 有权

    公开(公告)号：US10193151B2

    公开(公告)日：2019-01-29

    申请号：US14650979

    申请日：2013-11-27

    Applicant: UMICORE ,  UMICORE KOREA LTD.

    Inventor： Jens Paulsen ,  HyeYun Yang

    IPC: H01M4/525 ,  H01M4/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505

    Abstract: A positive electrode for a rechargeable battery comprising at least 95% active cathode material with an electrode loading of at least 6 mg/cm2, and preferably at least 10 mg/cm2, and an electrode porosity of less than 2%, and preferably less than 1%. The active cathode material may comprise a bimodal composition wherein at least 70% consists of a first lithium cobalt based oxide powder having an average particle size (D50) of at least 25 μm and a BET value

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