Anode, cathode, and electrolyte. In this video, we break down exactly how a lithium-ion battery works and compare the process to that of a lead acid battery. To learn more about our LiFePO4 batteries, visit dragonflyenergy.com/
Simplest explanations are the best, and this is the best explanation of how a Lithium ion battery works I've seen, and totally different from most explanations on the web that avoid anything close to a chemical reaction occurring. As a teacher I also include that during discharge lithium is oxidized and Iron is reduced, and I show the two half reactions. I also point out that as wittingham and Padhi pointed out in the 1970's, the real challenge is that the best designs essentially intercalate lithium on both sides without significantly altering the structure of the anode and cathode materials...which may help explain why silicon anodes with their huge swelling rates have been so challenging
It's because of a different urge to give up electrons as a metal and get solved. The chemical balance of the reaction Me -> Me+ + e- is different for every metal. That's one reason for choosing lithium. Lithium has a high urge to give away its electrons and become an Ion
I'm still confused about the reaction during charging. As I understand the reaction in the cathode is always reduction and the reaction in the anode is always oxidation, but your diagram shows the opposite. The reaction during charging in the cathode is oxidation (loss of electron) and the reaction in the anode is reduction (gain of electron). Can you please explain what is the reason? Thanks
@riosaputra2979 ChatGPT agrees with you, and so do I. He explained it wrong. That's the explanation. Reduction is the reducing of ions on the cathode side. electrons flow from the anode through the wire to power a device, back into the wire into the cathode (black terminal), the electrons then neutralize the ions that are on the cathode side, which in turn just become normal lithium atoms (no longer ionized), the lithium atoms get absorbed into the anode graphite. voltage is a function of an electric field which is a consequence of polarity. polarity is caused from differences in electric charge (positive side of battery / negative side of battery), this voltage is what causes the electrons to leave the anode in the first place, therefore, the anode side MUST have that extra electron in a neutral lithium atom to lose.
What you are saying is not correct! Only when charging a battery, the cathode is negative. The definitions of cathode and anode in an electrochemical cell are: at the cathode, chemical reduction takes place, at the anode chemical oxidation.
Recycling is a commodity business. Only the most valuable material is removed to be recycled, and the rest goes to landfill, in the oceans, or deported to countries with no regulations or laws on waste management.
