NEGATIVE ELECTRODE PLATE, METHOD FOR PREPARING NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY

Abstract

This application provides a negative electrode plate, a method for preparing a negative electrode plate, and a lithium-ion battery. The negative electrode plate includes: a negative current collecting layer; and a lithiated binding layer, attached to an inner surface of the negative current collecting layer, where a lithiation degree of a side of the lithiated binding layer away from the inner surface is greater than a lithiation degree of a side of the lithiated binding layer close to the inner surface. According to the technical solutions in this application, the lithiated binding layer in the negative electrode plate has a conductive gradient and a binding gradient, which resolves the problem of detachment in a negative electrode plate with a conventional binder, increases a rate of battery kinetics, and increases initial coulombic efficiency of a lithium-ion battery, increasing capacity of the lithium-ion battery.

CPC Classifications