Nickel-cobalt-manganese complex hydroxide particles and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte secondary battery

Nickel-cobalt-manganese complex hydroxide particles and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte secondary battery

  • CN 102,725,232 A
  • Filed: 12/02/2010
  • Published: 10/10/2012
  • Est. Priority Date: 12/02/2009
  • Status: Active Application
First Claim
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1. the method for manufacture of a nickel cobalt manganese composite hydroxide particle is to react through crystallization to make by general formula Ni xCo yMn zM t(OH) 2+ α

  • The method of manufacture of the nickel cobalt manganese composite hydroxide of expression, in the said general formula, 0.3≤

    x≤

    0.7;

    0.1≤

    y≤

    0.4,0.1≤

    z≤

    0.5,0≤

    t≤

    0.02;

    X+y+z+t=1,0≤

    α



    0.5, M is more than one the element that is selected among Ti, V, Cr, Al, Mg, Zr, Nb, Mo, Hf, Ta, the W;

    It is characterized in that Said method of manufacture is made up of nucleus formation operation and particle growth operation,Said nucleus formation operation is that to make with 25 ℃

    of liquid temperature be that pH value that benchmark is measured becomes 12.0~

    14.0 mode and controls nucleus formation and carry out caryogenic operation with the aqueous solution, and said nucleus formation comprises the metallic compound and the ammonium ion supply body of nickeliferous, cobalt and manganese with the aqueous solution;

    Said particle growth operation is that to make with 25 ℃

    of liquid temperature be that pH value that benchmark is measured becomes 10.5~

    12.0 mode and controls the particle growth that contains the nuclear that forms in this nucleus formation operation and use the aqueous solution, so that the operation of said nucleus growth.

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