Non-metallic materials are not affected.
There are two main principles of wireless charging, one is electromagnetic induction, the other is magnetic resonance. The use of electromagnetic induction charging, you need to install a coil in the mobile phone and the charging platform, when the power is powered on, the coil in the charging platform will generate alternating current, when the mobile phone and it close to the electromagnetic induction, the coil will begin to work, the electromagnetic energy into direct current, to complete the charging of the mobile phone. This charging method requires that the phone and the charging platform must be in contact, otherwise the charging cannot be completed. Electromagnetic resonance also requires the interaction of the mobile phone and the charging platform to achieve energy conversion, but this technology does not require the contact of the mobile phone and the charging platform, only the LC resonance frequency of the two needs to be consistent, so that even if separated by a certain distance, wireless charging can also be carried out.
For a plastic mobile phone case with a thickness of about 1mm, it will not affect the charging induction. For the mobile phone case with metal or other conductive materials, it will affect wireless charging. Because wireless charging will detect whether there is a metal foreign body at the transmitting and receiving ends, if there is, it cannot be charged. For some special materials, you can seek advice from relevant professionals.
Non-metallic phone cases will not affect wireless charging. In simple terms, standard wireless charging transmits power through electromagnetic fields, and metal will cause certain interference to the transmission process.
These negative effects may cause the device to fail to charge properly, or overheat damage, etc., which is why most new phones use glass panels.