Negative pole piece, battery and electric equipment

The invention relates to a negative pole piece, a battery and electric equipment, and belongs to the technical field of secondary batteries. The negative pole piece comprises a negative current collector and a negative active material layer arranged on at least one side of the negative current collector; the negative electrode active material layer comprises a first negative electrode active material and a second negative electrode active material, and the first negative electrode active material is an active material capable of intercalating and deintercalating lithium; the second negative electrode active material is an active material capable of providing ions and electrons; the ions provided by the second negative electrode active material comprise potassium ions or/and sodium ions. Ions and electrons in a battery system can be supplemented, and the lithium supplementing effect is realized, so that the cycle performance of the battery is improved.