If the internal resistance of the battery really is low enough for this to work then the discharge speed could also be a huge advantage for other applications.
At the same time I see a huge safety issue: If I drop my phone in the water I don't want it to be able to transmit power that quickly.
At the same time I see a huge safety issue: If I drop my phone in the water I don't want it to be able to transmit power that quickly.