Carbonate Precursors for High Lithium and Manganese Containing Cathode Materials
    2.
    发明申请
    Carbonate Precursors for High Lithium and Manganese Containing Cathode Materials 有权
    含锂阴极材料的高锰酸盐前体碳酸盐前体

    公开(公告)号:US20160218361A1

    公开(公告)日:2016-07-28

    申请号:US14915281

    申请日:2014-08-21

    Abstract: A carbonate precursor compound of a lithium manganese based oxide powder for a positive electrode of a rechargeable battery, the oxide having the general formula Li1+vM1−vO2, wherein −0.03≦v≦0.25, wherein M is a composition comprising at least 50 mol % of manganese, and wherein the carbonate precursor compound has a secondary particle size D50 expressed in μm, and a tap density TD expressed in g/cm3, with either ≦TD≦(2.78*D50)/(D50+7.23) and the compound having a particle size distribution having a span S≦1.8 with S=(D90−D10)/D50; or 1≦TD≦(2.78*D50)/(D50+7.50).

    Abstract translation: 用于可再充电电池正极的锰酸锂氧化物粉末的碳酸酯前体化合物,具有通式Li1 + vM1-vO2的氧化物,其中-0.03≤v≤0.25,其中M是包含至少50mol %的锰,其中碳酸酯前体化合物具有以μm表示的二次粒径D 50和以g / cm 3表示的振实密度TD,其中≤TD≤(2.78×D50)/(D50 + 7.23)和化合物 具有S =(D90-D10)/ D50的跨度S≤1.8的粒度分布; 或1≤TD≤(2.78×D50)/(D50 + 7.50)。

    METHOD FOR PREPARING A PRECURSOR MATERIAL FOR A LI-CONTAINING CATHODE ACTIVE MATERIAL

    公开(公告)号:US20250002369A1

    公开(公告)日:2025-01-02

    申请号:US18703517

    申请日:2022-10-20

    Applicant: Umicore

    Abstract: Method for preparing a precursor material for a Li-containing cathode active material for a battery, wherein the method comprises a spray pyrolysis step in which a metal oxide is produced by decomposition in a heated chamber of droplets of an aqueous solution, wherein either the metal oxide is a mixed metal oxide comprising the element Ni and one or both of the elements Co and Mn and the aqueous solution is a mixed solution of salts of Ni and of Co and/or Mn or the metal oxide is a Ni oxide and the aqueous solution is a solution of a salt of Ni, characterised in that the method comprises a spray drying step in which an aqueous slurry comprising said metal oxide is spray dried to form said precursor material.

    METHOD FOR PRODUCING COMPOSITE, AND NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY
    9.
    发明申请
    METHOD FOR PRODUCING COMPOSITE, AND NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY 审中-公开
    用于生产复合材料的方法和用于锂离子电池的负极电极材料

    公开(公告)号:US20160181602A1

    公开(公告)日:2016-06-23

    申请号:US14909755

    申请日:2014-08-04

    Abstract: A production method for a composite of fine particles (A) and carbon particles (B), including the steps of: mixing fine particles (A) formed of a substance comprising at least one kind of Si, Sn, Al, Ge and In; and molten pitch, to obtain a mixture (1); pulverizing the mixture (1) to obtain a pulverized product (2a); dry-mixing the pulverized product (2a) and carbon particles (B) to obtain a mixture (3a); and firing the mixture (3a), followed by pulverization; or including the steps of: adding carbon particles (B) to the mixture (1), followed by dry mixing and pulverizing, to obtain a pulverized product (2b); and firing the pulverized product (2b), followed by pulverization.

    Abstract translation: 一种微粒(A)和碳粒(B)的复合体的制造方法,其特征在于,包括:由包含Si,Sn,Al,Ge和In中的至少一种的物质形成的微粒(A) 和熔融沥青,得到混合物(1); 粉碎混合物(1)以获得粉碎产物(2a); 将粉碎物(2a)和碳粒子(B)干混,得到混合物(3a); 并烧制混合物(3a),然后粉碎; 或者包括以下步骤:向混合物(1)中加入碳颗粒(B),然后干混和粉碎,得到粉碎产物(2b); 烧成粉碎物(2b),进行粉碎。

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