METHOD FOR PRODUCING COMPOSITE, AND NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY
    1.
    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。

    Carbonate Precursors for High Lithium and Manganese Containing Cathode Materials
    4.
    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.

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