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A Brief Discussion on the Application of Litz Wire in Electric Vehicle Charging Stations

July 3, 2026

Litz wire is a type of composite wire, made up of multiple insulated single enameled copper wire strands, twisted together and then an outer protective layer of insulating yarn such as polyester (Dacron) or nylon is wrapped around it. The unique composite construction imparts exceptional properties to litz wire enabling it to have high frequency characteristics with good mechanical strength.


Electric Vehicle (EV) Charging Stations Applications Litz wire contributes to EV charging in two key ways: through its presence in high power charging station power modules and through its integral use in wireless charging solutions.Power Modules in Fast Charging Stations Litz wire is applied in the high-frequency transformers and inductors that are core magnetic devices in the power modules of a charging station. Because of its stranded configuration, litz wire greatly reduces “skin effect” and “proximity effect” losses at high frequency, resulting in better conversion efficiency and power density of power modules.


Furthermore, the outer yarn winding improves insulation strength, increases mechanical protection, offers excellent dimensional stability and higher electrical strength which prevent turn-to-turn breakdown and guarantee the electrical safety in the high voltage operation.Wireless EV Charging Systems The transmitter and receiver coils of the wireless charging systems employ Litz wire. Considering the extremely high working frequency of wireless charging (e.g. 85 KHz), the application of a litz type conductor material is compulsory.


Otherwise, the AC resistance of the coils will be skyrocketed, which causes the generation of too much heat and large amount of efficiency loss.So far, litz wire has become the EV charging technology evolution path mainstream materials, higher efficiency, higher power density, higher reliability for the 3E of the endless pursuit of. Ruiyuan production high cost-performance litz wires. We have a variety of models to choose from, exquisite workmanship, low moq and fast delivery Welcome to both new and old customers march in and co-operate with us for enquires!