Perhaps someone can help me with a question. I read this and look for a elementary explanation of the operation of an aluminum-ion battery. Wikipedia yields this[1]:

    "Aluminium-ion batteries are a class of rechargeable battery in which aluminium ions provide energy by flowing from the positive electrode of the battery, the anode, to the negative electrode, the cathode. When recharging, aluminium ions return to the negative electrode, and can exchange three electrons per ion."

This description appears self contradictory. On one hand the battery "provides energy" when ions are "flowing from" the anode to the cathode. When recharging, the opposite of "providing energy," one should then expect to be told that the reverse happens; the ions would return to the anode. Yet the Wikipedia description tells us the opposite when recharging; "aluminium ions return to the negative electrode [cathode]."

Nowhere in this cycle, according to this description, are the ions returned to the anode. What am I missing?

[1] https://en.wikipedia.org/wiki/Aluminium-ion_battery