Positive electrode material, electrochemical apparatus, and electronic device

Abstract

A positive electrode material includes first monocrystalline particles, and the first monocrystalline particle has a first length-diameter ratio L1, where L1 satisfies 2≤L1≤5. The positive electrode material includes the first monocrystalline particle having the first length-diameter ratio L1, and a high length-diameter ratio of the first monocrystalline particle is conducive to reducing active crystal planes which cause side reactions on a surface of the positive electrode material, and suppressing structural phase change and interface side reactions of the positive electrode material, which leads to improved cycling performance and storage performance of the electrochemical apparatus at high voltage and high temperature.

Dependencies are inferred from the claim text.