li-imide's time in the sun was short. :p

Maybe the same anode is applicable there.

(Anodes are where current flows into a battery, while cathodes are where current flows out.)

What?

I'm pretty sure both the anode and the cathode see current both ways, because you have to complete the circuit for electricity to flow.

which in turn allows lithium ions to diffuse in and out of the battery more quickly

...I'm pretty sure the lithium ions never leave the battery either.

This is a horribly written article.

@Eikka - Basically correct.
Lithium ions don't leave the battery. In normal operation lithium ions migrate from the anode to the cathode, creating a positive voltage there. Electrons are prevented from migrating with the ions, so the electrons flow from the anode into the rest of the circuit, and electrons flow back into the cathode to to neutralize the ions.
Electrons are negative and by convention current is positive so 'current' flows the opposite way. Thus during normal operation current flows only one way, into the anode (opposite from the electron flow.
However during charging of the battery the process is reversed, so if charging is included then yes, both electrodes see the current both ways.

These claims are frequently made to lure investors. I'll believe it when I see it!