Positive electrode plate, battery comprising the positive electrode plate, and electrical device

Abstract

A positive electrode plate, characterized in that the positive electrode plate comprises a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector, wherein the positive active material layer contains a positive active material, wherein the positive active material comprises lithium manganese iron phosphate and a ternary cathode material, and the positive electrode plate0.09 <a / b<5,1 erfüllt,wobei a der Masseanteil des Elements Ni in der positiven Aktivmaterialschicht in der Einheit % ist; undb eine längsgerichtete Benetzbarkeit der positiven Elektrodenplatte in der Einheit % ist.