▎ 摘　　要

NOVELTY - A positive electrode sheet includes positive electrode active material layer containing a positive electrode active material, a conductive agent, a binding agent and a semiconductor material. USE - Positive electrode sheet used for electric core for battery (all claimed). ADVANTAGE - The semiconductor material is doped in the positive electrode material, which can not only prevent lithium precipitation at normal temperature, but also achieve purpose of prolonging high-temperature cycle life and achieving both high and low temperature.