POSITIVE ELECTRODE MATERIALS HAVING A SUPERIOR HARDNESS STRENGTH
    7.
    发明公开
    POSITIVE ELECTRODE MATERIALS HAVING A SUPERIOR HARDNESS STRENGTH 有权
    积极的ELEKTRODENMATERIALIEN MIT HOHERHÄRTEFESTIGKEIT

    公开(公告)号:EP3155680A1

    公开(公告)日:2017-04-19

    申请号:EP15806939.3

    申请日:2015-06-01

    IPC分类号: H01M4/525 C01G53/00 C01D15/00

    摘要: A powderous positive electrode material for a lithium secondary battery, the material having the general formula Li1+x[Ni1−a−b−cMaM′bM″c] 1−xO2−z; M being either one or more elements of the group Mn, Zr and Ti, M′ being either one or more elements of the group Al, B and Co, M″ being a dopant different from M and M′, x, a, b and c being expressed in mol with −0.02≦x≦0.02, 0≦c≦0.05, 0.10≦(a+b)≦0.65 and 0≦z≦0.05; and wherein the powderous material is characterized by having a BET value ≦0.37 m2/g, a Dmax

    摘要翻译: 用于锂二次电池的粉末状正极材料,具有通式Li 1 + x [Ni 1-a-b-c M a M'b M“c] 1-x O 2-z的材料; M是Mn,Zr和Ti组中的一种或多种元素,M'是Al,B和Co组中的一种或多种元素,M“是不同于M和M'的掺杂剂,x,a,b 和c以-0.02≤x≤0.02,0≤c≤0.05,0.10≤(a + b)≤0.65和0≤z≤0.05的摩尔表示; 其特征在于,所述粉末材料的特征在于BET值≤0.37m2 / g,Dmax <50μm,硬度强度指数ΔΓ(P)不大于100%+(1-2a-b)×160% 对于P = 200MPa,其中D 10p = 0的(式I)(I)是无约束粉末的D10值(P = 0MPa),r°(D 10p = 0)是累积体积粒径分布 在D 10p = 0时的无约束粉末,Γp(D 10p = 0)是压制样品的D10p = 0时的累积体积粒径分布,P表示为M Pa。