The nickle cobalt lithium manganate ternary anode material of lithium battery and preparation method of a kind of abnormity distribution

The nickle cobalt lithium manganate ternary anode material of lithium battery and preparation method of a kind of abnormity distribution

  • CN 106,898,747 A
  • Filed: 03/16/2017
  • Published: 06/27/2017
  • Est. Priority Date: 03/16/2017
  • Status: Active Application
First Claim
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1. it is a kind of abnormity distribution nickle cobalt lithium manganate ternary anode material of lithium battery preparation method, it is characterized in that using thread oxygenChange nickel, spherical manganese oxide, sheet cobalt oxide is assembled as raw material, comprised the following steps:



  • 1)

    Thread nickel oxide, spherical manganese oxide, sheet cobalt oxide being taken respectively, being activated using HF acid solutions, soak time is10-30 minutes, dry, respectively obtain the thread NiO fine powder of activation, the spherical manganese oxide micro mist of activation, activating sheet cobalt oxide micro-Powder;



    2)

    Manganous hydroxide lithium colloidal sol is prepared respectively, and nickel hydroxide lithium colloidal sol, each 2 groups of cobalt hydroxide lithium colloidal sol is standby;



    3)

    By step(

    1)

    The thread NiO fine powder of activation and step for obtaining(

    2)

    The manganous hydroxide lithium colloidal sol and hydroxide of preparationCobalt lithium colloidal sol mixes, and obtains compound colloidal sol 1;

    By step(

    1)

    The spherical manganese oxide micro mist of activation and step for obtaining(

    2)

    PrepareNickel hydroxide lithium colloidal sol and cobalt hydroxide lithium colloidal sol mix, and obtain compound colloidal sol 2;

    By step(

    1)

    The activating sheet oxygen for obtainingChange cobalt micro mist and step(

    2)

    Manganous hydroxide lithium colloidal sol and nickel hydroxide lithium the colloidal sol mixing of preparation, obtain compound colloidal sol 3;

    PointDo not stir, colloidal sol is wrapped in micro mist surface;



    4)

    To step(

    3)

    The compound colloidal sol 1,2,3 for obtaining carries out spray drying treatment respectively, further by dry powderBy high temperature sintering, thread nickelic Precursor Powder, spherical manganese Precursor Powder high and sheet cobalt precursor powder high are obtained respectively;



    5)

    By step(

    4)

    Thread nickelic Precursor Powder, spherical manganese Precursor Powder high and sheet the cobalt precursor powder mixing high for obtainingUniformly, it is laid in 300-320 DEG C of grinding tool, the tin liquor of melting is slowly coated on mixed-powder surface, and keep grinding toolTemperature, metallic tin uniformly coats the mixing material, by the tin assembly and connection for melting, forms the nickle cobalt lithium manganate of abnormity distributionTernary anode material of lithium battery.

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