100 Hz Pulse Charging?

[Bill Price]

Saw this the other day and thought it was interesting!

BESSY II: How pulsed charging enhances the service time of batteries

 

[Genie]

I didn’t see where they named the wavelength other than High Frequency but that band runs 3-30MHz,
there may be radio interference issues to solve along the way.

 

[Bill Price]

I didn’t see where they named the wavelength other than High Frequency but that band runs 3-30MHz,
there may be radio interference issues to solve along the way.

FYI it's 100 Hz.

 

[DrChaos]

This could be possible in practice but it would need a redesign of the on-board charging electronics. First, at a minimum, the max current deliverable would have to be doubled (to keep same power at half duty cycle) and add fast switching capability. There would probably also have to be some significant capacitors so that the current required from the wall is not increased beyond limits or putting high power 100 Hz back onto the line. Conceptually this is like a 7400 watt audio amplifier.

Will the electronics grow sufficiently less reliable that you'll have to replace those expensively more than the battery cells? You really don't want those big electrolytic capacitors which are conventionally needed in audio applications.