γ is calculated by measuring θi, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field to obtain δ as the only variable of the periodic function, δ each value, corresponding to a γ, the periodic function can be in the range of [-π/2,π/2] to obtain the maximum. The positive electrode material comprises a plurality of lamellar particles, and the positive electrode material satisfies the following relation: 0.70≤ψ≤1.12, where ψ = [2-α*β/0.85+γ]/2;
Where, α = (DV90-DV10)/dv50, dv90, dv10 and dv50 are the particle size distribution parameters of the positive electrode material respectively, β is the average value of the ratio of the long axis length to the short axis length of the spheroid in the particle size distribution range of dv50. n is the number of sheet particles selected for calculating PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field on spheroids within the size distribution range of dv50.
n≥10; θi is the anticlockwise Angle between the length direction of the selected i flake particle and the set horizontal axis. δ is the horizontal axis of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC magnetic rotation set in the range of [-π/2,π/2]. The rotation Angle relative to the set horizontal axis when γ is maximized.
Contact: DELLA
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