Well my toothbrush sits with an electrified shaft up it's end every night.
So . . . lots of happy transportation in the future. Go science!

TLDR: They have greatly improved the charging capacity through induction by using thinner braided copper wires and silicon carbide to allow far larger transfers of power

Not owning an electric toothbrush, the article title had me confused - it's talking about wireless charging.

>>Until now, inductive charging - where there’s no contact between the device and conductor - has been unable to deliver the high power that electric vehicle batteries need. The method has only worked for small devices, like electric toothbrushes and some mobile phones.

>>But new components have enabled scientists at a Swedish university to show that the recharging of urban ferries and city buses is possible without human or robotic hands.

>>It’s a vital step for the electrification of our transport systems, says the man who has put the pieces together.

>>“You can have a system built into the wharf that charges the ferry at some stops while passengers get on and off,” explains Professor Liu, professor of electric power engineering at Chalmers University of Technology in Gothenburg.

>>“Automatic and completely independent of weather and wind, charging can take place 30-40 times per day.”

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From the article: "...with a higher electrical resistance than an insulator, but less than a conductor,..."

Umm, what?