Power Bank wireless QI

Hi Everyone,

I'm novice in this world of electronics;
I'm looking for the best solution to creat a power bank wireless QI;

From what I know, I need:

  • A battery lithium ion polymere
  • a charger controller
  • a coil

is that correct ? if it's correct how powerfull it has to be ?

Furthermore, there is any companies, start-up who could creat it according my design ?
You probably understand, the target is to charge your phone.
One more question, The phone can be charged on the side of the screen ? or only from the back ?

Have great day, and thank you for your help

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