Positive electrode sheet, electrochemical device including the positive electrode sheet, and electronic device

Abstract

The present invention discloses a positive electrode sheet, an electrochemical device including the positive electrode sheet, and an electronic device. The positive electrode sheet of the present invention includes a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a ternary positive electrode material containing boron, zirconium and aluminum; the positive electrode sheet satisfies an equation as follows: 11.0≤[F101+(DFW/4.5)]×1.85±ln(M)≤17.0; where F101 is a half-peak breadth of a diffraction peak of the positive electrode active material at a position of 36.6±1° in an XRD spectrum; DFW is a full width at half maximum of particle size volume distribution of the positive electrode active material; and M is a total mass proportion of the trace elements in the positive electrode active material.

Dependencies are inferred from the claim text.