3 ms·
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 t
by topspin 5y ago
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 https://en.wikipedia.org/wiki/Aluminium-ion_battery
- Arnavion 5y agohttps://en.wikipedia.org/w/index.php?title=Aluminium-ion_battery&action=historysubmit&type=revision&diff=1025327818&oldid=1025298250 https://en.wikipedia.org/w/index.php?title=Aluminium-ion_bat... They probably forgot to also change the second sentence.
- tape_measure 5y agoThe terms anode and cathode are reversed. Mnemonic device: Anode - ants - bad - negative Cathode - cats - good - positive
- topspin 5y agoThis is the opposite of what I understand: anode positive, cathode negative. Google (and multiple other sources) confirm my understanding: an·ode /ˈanōd/ the positively charged electrode by which the electrons leave a device. cath·ode /ˈkaTHˌōd/ the negatively charged electrode by which electrons enter an electrical device.
- ultimape 5y agoleft hand side of the road, or right hand side of the road?
- OnlyOneCannolo 5y agoIt depends on whether you're talking about electron flow or conventional current, because they're opposite each other. The original mnemonic is incomplete because it doesn't specify to which it refers.