Flexible wrinkle stretchable metal current collector and preparation method and application thereof

The invention provides a flexible wrinkle stretchable metal current collector and a preparation method and application thereof, and belongs to the technical field of energy storage batteries. The flexible wrinkle stretchable metal current collector comprises a flexible substrate layer, a semi-solidified PDMS layer and a metal layer which are sequentially arranged from bottom to top, the preparation method comprises the steps that a flexible polymer substrate is cut into a disc shape, PDMS glue is spin-coated to one side of the disc-shaped flexible polymer substrate, after drying treatment, a metal particle target material is deposited on the surface of the semi-solidified PDMS layer, and the flexible wrinkle stretchable metal current collector is obtained. And forming a metal layer. According to the flexible wrinkled stretchable metal current collector, the metal layer adheres to the upper surface of the semi-solidified PDMS layer, the ultrathin metal layer adheres to the surface of the soft semi-solidified P