Battery cell, method for manufacturing the same, battery device, energy storage device, power consumption device

Abstract

The application relates to the technical field of energy storage, and provides a battery monomer, a preparation method of the battery monomer, a battery device, an energy storage device and a power utilization device. The preparation method of the battery monomer comprises the following steps: dispersing black phosphorus powder in a buffer solution, adding an organic nitrogen source and a metal salt into the buffer solution, drying to obtain a coated precursor, and the organic nitrogen source contains oxygen elements; heating the coated precursor to T1 DEG C at a heating rate of 1 DEG C / min to 3 DEG C / min for first heating treatment, and then heating to T2 DEG C at a heating rate of 2 DEG C / min to 8 DEG C / min for second heating treatment to obtain modified phosphorene; obtaining an electric core assembly, the electric core assembly comprises a negative electrode, a diaphragm and a positive electrode which are arranged in a stack mode, and the negative electrode comprises the modified phosphorene; and placing an electrolyte and the electric core assembly in a shell. The battery monomer prepared by using the preparation method has good energy density and cycle performance.

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