Positive electrode active substance, positive electrode material, positive electrode, and non-aqueous electrolyte secondary battery

  • US 9,537,148 B2
  • Filed: 02/27/2014
  • Issued: 01/03/2017
  • Est. Priority Date: 02/28/2013
  • Status: Active Grant
First Claim
Patent Images

1. A positive electrode active substance for a non-aqueous electrolyte secondary battery comprising a composite oxide containing lithium and nickel,wherein the positive electrode active substance has a structure of secondary particles formed by aggregation of primary particles, the average particle diameter of primary particles (D1) is 0.9 μ

  • m or less, the average particle diameter of the primary particles (D1) and the standard deviation (σ

    ) of the average particle diameter of the primary particles (D1) meet the relationship of D1/σ

    2

    24, and the tap density of the positive electrode active substance is 2.3g/cm3 or more.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×