Preparation method for nickel-cobalt lithium manganate serving as high-performance lithium ion battery positive electrode material

Preparation method for nickel-cobalt lithium manganate serving as high-performance lithium ion battery positive electrode material

  • CN 105,118,986 A
  • Filed: 08/28/2015
  • Published: 12/02/2015
  • Est. Priority Date: 08/28/2015
  • Status: Active Application
First Claim
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1. a preparation method for high performance lithium ion battery anode material nickle cobalt lithium manganate, is characterized in that, comprises the steps:

  • Step (a), the mixed solution of preparation Li source compound, nickel source compound, cobalt source compound and manganese source compound, in wherein said mixed solution, the mol ratio of lithium ion, nickel ion, cobalt ions, manganese ion is (3.05 ~ 3.15);

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    Step (b), by carbon nano-tube ultrasonic disperse in a solvent, forms the dispersion liquid of carbon nano-tube;

    Step (c), under agitation adds described mixed solution in the dispersion liquid of described carbon nano-tube, and heating evaporation solvent, obtain gel presoma;

    Step (d), after the drying of described gel presoma, grinding obtains precursor powder;

    Step (e), heat-treats described precursor powder, and sintering, obtains described nickel-cobalt lithium manganate cathode material LiNi 1/3co 1/3mn 1/3o 2porous nano-sheet.

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