The present disclosure provides an insulated wire and a preparation method therefor, a winding wire and an electrical device, relating to the technical field of electrochemical elements. The insulated wire includes a conductive wire and an insulating layer coated on the conductive wire, where the insulating layer includes polyetheretherketone and thermoplastic polyimide, and a mass percentage of the polyetheretherketone in the insulating layer is not more than 20%; and the conductive wire is in direct contact with the insulating layer; and after extrusion and cooling for 24 h, under a condition that the insulated wire is ring cut and stretched by 15%, a length of the insulating layer losing adhesion is not greater than 1.9 mm.

The present disclosure provides an insulated wire and a preparation method therefor, a winding wire and an electrical device, relating to the technical field of electrochemical elements. The insulated wire includes a conductive wire and an insulating layer coated on the conductive wire, where the insulating layer includes polyetheretherketone and thermoplastic polyimide, and a mass percentage of the polyetheretherketone in the insulating layer is not more than 20%; and the conductive wire is in direct contact with the insulating layer; and after extrusion and cooling for 24 h, under a condition that the insulated wire is ring cut and stretched by 15%, a length of the insulating layer losing adhesion is not greater than 1.9 mm.

Provided is an insulated electric wire comprising a conductor and a coating layer formed on a periphery of the conductor, wherein the coating layer comprises a fluororesin layer containing a melt-fabricable fluororesin and a PAEK resin layer containing a polyaryl ether ketone (PAEK) resin that is formed on a periphery of the fluororesin layer, and wherein a thickness of the coating layer is 40 to 300 m.

Provided is an insulated electric wire comprising a conductor and a coating layer formed on a periphery of the conductor, wherein the coating layer comprises a fluororesin layer containing a melt-fabricable fluororesin and a PAEK resin layer containing a polyaryl ether ketone (PAEK) resin that is formed on a periphery of the fluororesin layer, and wherein a thickness of the coating layer is 40 to 300 m.

An insulated wire and a preparation method thereof, a coil, and an electronic/electrical device are provided. The insulated wire includes a conductor and a bonding layer, and a PEEK resin sequentially arranged on the outer side of the conductor. The structure of the bonding layer includes a polymerization unit and a polymerization unit, and the polymerization unit accounts for 5-15%.

An insulated wire and a preparation method thereof, a coil, and an electronic/electrical device are provided. The insulated wire includes a conductor and a bonding layer, and a PEEK resin sequentially arranged on the outer side of the conductor. The structure of the bonding layer includes a polymerization unit and a polymerization unit, and the polymerization unit accounts for 5-15%.

An insulated wire and a preparation method thereof, a coil, and an electronic/electrical device are provided. The insulated wire includes a conductor and a bonding layer, and a PEEK resin sequentially arranged on the outer side of the conductor. The structure of the bonding layer includes a polymerization unit and a polymerization unit, and the polymerization unit accounts for 5-15%.

An insulated wire and a preparation method thereof, a coil, and an electronic/electrical device are provided. The insulated wire includes a conductor and a bonding layer, and a PEEK resin sequentially arranged on the outer side of the conductor. The structure of the bonding layer includes a polymerization unit and a polymerization unit, and the polymerization unit accounts for 5-15%.