Abstract: Disclosed in the present text are a magnetic shielding structure for wireless charging and a manufacturing method therefor, which belong to the technical field of wireless charging. The magnetic shielding structure comprises: a plurality of nanocrystalline units and a heat conduction unit, wherein the heat conduction unit is arranged between the nanocrystalline units, and is used for connecting the nanocrystalline units and conducting heat; and each nanocrystalline unit comprises a multilayer nanocrystalline material. Provided in the application are a magnetic shielding structure and a manufacturing method therefor, which magnetic shielding structure has a relatively small eddy-current loss, a good heat dissipation performance and insulation performance, high flexibility and reliability, and a small volume and a light weight, and is suitable for high-power wireless charging.

Abstract: Disclosed are a modified nanocrystalline strip, a preparation method therefor, and an application thereof. The preparation method comprises: performing rolling treatment on a nanocrystalline strip with a double-sided adhesive adhered on one side to obtain a micro-crushed nanocrystalline strip; performing acid etching surface treatment on the obtained micro-crushed nanocrystalline strip; performing alkaline washing surface treatment on the nanocrystalline strip subjected to acid etching surface treatment; sequentially washing with water and washing with alcohol the nanocrystalline strip obtained by the alkaline washing surface treatment, and then drying same; and performing micro-oxidation treatment on the dried nanocrystalline strip to obtain a modified nanocrystalline strip.