Carbon-based negative electrode current collector with lithium-philic confinement structure and preparation method and application of carbon-based negative electrode current collector

The invention discloses a carbon-based negative electrode current collector with a lithium-philic confinement structure and a preparation method and application thereof, and belongs to the technical field of electrochemical energy. The preparation method of the carbon-based negative electrode current collector comprises the following steps: cleaning the carbon substrate; heating in a water bath in a concentrated acid solution for activation; soaking in a seed crystal source solution containing metal oxide and alkali, taking out, drying, and repeatedly dipping; immersing into a growth solution containing a metal oxide and a crystallization regulator, carrying out hydrothermal reaction to grow the metal oxide on the carbon substrate, taking out, washing and drying; a metal oxide carbon substrate coated with the carbon precursor is obtained; carrying out pyrolysis treatment; and carrying out acid etching on part of the metal oxide to obtain the carbon-based negative electrode current collector with the lithium-l