Abstract: A conformal printing device for curved-surface circuits is provided. The device includes a device body that includes a stand and a support plate movable relative to the stand. The device further includes a print-head module mounted on the support plate and a motion module mounted on the device body. The print-head module includes a piezoelectric nozzle and an airflow assisting structure for applying an assisted airflow to guide charged jet ejected from the nozzle to be precisely printed onto a curved-surface base material below the nozzle. The motion module enables a tangent of a surface, on which a printing position of the curved-surface base material to be printed is located, to be always perpendicular to a jet ejected by the nozzle, ensures that the print-head module moves following the curved-surface shape, and implements conformal printing circuits on any complex curved surfaces.

Abstract: Disclosed in the present application are a cavity-customized carbon-silicon composite material, and a preparation method therefor and the use thereof. The cavity-customized carbon-silicon composite material comprises a core structure and a third-phase carbon coating layer wrapping around the core structure, wherein the core structure is a structure formed after pore-forming agent particles are removed from first intermediate product particles; the core structure has a customized cavity formed after the pore-forming agent particles are removed; the first intermediate product particles are compound particles formed by silicon particles, the pore-forming agent particles, first-phase carbon and second-phase carbon; the first-phase carbon is a carbon nanomaterial with a network structure; the second-phase carbon is a carbon substance derived from an organic compound; and the third-phase carbon is a carbon substance converted from tar and/or asphalt.

Abstract: A conformal printing device for curved-surface circuits is provided. The device includes a device body that includes a stand and a support plate movable relative to the stand. The device further includes a print-head module mounted on the support plate and a motion module mounted on the device body. The print-head module includes a piezoelectric nozzle and an airflow assisting structure for applying an assisted airflow to guide charged jet ejected from the nozzle to be precisely printed onto a curved-surface base material below the nozzle. The motion module enables a tangent of a surface, on which a printing position of the curved-surface base material to be printed is located, to be always perpendicular to a jet ejected by the nozzle, ensures that the print-head module moves following the curved-surface shape, and implements conformal printing circuits on any complex curved surfaces.