Nonaqueous electrolyte secondary battery, Li-Ni composite oxide particle powder, and method for producing same

Nonaqueous electrolyte secondary battery, Li-Ni composite oxide particle powder, and method for producing same

  • CN 104,810,517 B
  • Filed: 03/05/2008
  • Issued: 09/29/2020
  • Est. Priority Date: 03/05/2007
  • Status: Active Grant
First Claim
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1. A Li-Ni composite oxide particle powder for a nonaqueous electrolyte secondary battery, characterized in that:

  • the constitution of the secondary particle as a core is Lix1Ni1-y1-z1-w1Coy1Mnz1Mw1O2-v1Kv1Wherein x1 is more than 1.0 and less than or equal to 1.3, y1 is more than or equal to 0.1 and less than or equal to 0.3, z1 is more than or equal to 0.0 and less than or equal to 0.3, w1 is more than or equal to 0 and less than 0.1, v1 is more than 0 and less than or equal to 0.05, M is at least one metal selected from Al and Fe, K is F-

    PO43-At least one kind of anion selected from (a) a,the secondary particles have a structure in which the number of moles of metal (x1-1) is covered or present on the particle surface1-y2-z2-w2Coy2Mnz2Mw2O2-v2Kv2The composite oxide of (1), wherein 0. ltoreq. y 2. ltoreq.0.33, 0. ltoreq. z 2. ltoreq.0.5, 0. ltoreq. w 2. ltoreq.0.1, 0. ltoreq. v 2. ltoreq.0.05, and 0.5. ltoreq. (1-y2-z2-w2)/(y2+ z2+ w2), 0.3. ltoreq. z1+ z2 and 0. ltoreq. z2-z 1. ltoreq.0.5, M is at least one metal selected from Al, Fe, Mg, Zr, and Ti, and K is F32 + z2, and K is more than or equal to 0.5-

    PO43-At least one anion selected from (a).

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