You appear to be saying that you wish to supply your 230v ev charger from an american 110v supply. For whatever purpose you wish to do this simply consider the power requirement. In this case its around 3kw, so you need a transformer that can deliver at least that power output and an inlet from 110v that can deliver enough power to feed it, ie double+ a bit of the 230v output. Meaning if you wish to take out say 10amps at 230v you would have to provide a supply of at least 20amps+ some to allow for losses. Few std US outlets are 20+ amps, and the higher current is also higher voltage over two phases to feed cookers , washing machines etc, so is already at 230v (Probably 220v).
You will struggle to find any piece of kit to do what you want. If you are in the US check what the charge cable supplied is capable of if its supplied to run on 110v then its current may already have been set low enough to use from a 110v domestic supply. In the UK we have transformers to go from 240 to 110v and these weigh about 15+kg and are expensive. Such a tranformer and power capability is a heavy bit of kit.
It would really help us understand, and assist you if you could be a bit more explicit about what you are trying to achieve.
ie You have a Kia Soul, you live in the US, you only have a domestic 110v supply and no aceess to 220v (two phase supply) , or you wish to charge from any 110v socket and dont have the US standard 110v nema etc charge plug/ lead.
A bit more detail would be good.