How do Lithium-ion Batteries Work?

Great video! Batteries have always been a mystery to me and this video helped out!

As an Electronics Engineer, i greatly commend this channel for making outstanding videos on electronics,, You deserve millions of subscribers... Great work

Wow, I worked in a development lab making automotive Lithium Ion batteries for 10 years. We coated the carbon onto the large aluminum and copper “sheets”. We cut them to the proper size, wound the layers together (including the separator), put them into the final package and filled it with electrolyte, tested them and many times integrated them in to larger battery systems. It was fun. The chemistry always seemed to be a black art that only the Phd chemical engineers understood! This was good video.

This is literally exactly how I pictured the perfect tech videos to learn about stuff. Great colorful visuals, and simple but detailed explanations 😍 (I'm working on a few far out energy storage things to be made at scale, right now, but so far I dont have anything worth sharing to the general public at the moment but stay tuned if you want to hear about some exciting news)

Please keep making videos bro. You just give complete knowledge that no other channel on YouTube offers.

Question: "I learned that the Anode is + and the Cathode is -. Why do you say the reverse?" Answer: Well, in electronic devices, by definition: the anode is where electrons leave the component. In a diode or LED, the anode, the anode is the + terminal, the cathode is - and current goes from + to -, and electrons go from - to +. However now, think of the battery that is powering that LED. When operating, electrons come out of the negative side, and by the definition that makes this the anode. Thus, for batteries the anode is - and the cathode is +. But, chemistry uses a different definition of 'the cathode is where species are reduced, and the anode is where species are oxidized'. And for a battery function vs recharging the anode and cathodes switch sides, but + and - designations stay the same. TLDR: Anode and cathode are defined by more than just Anode is + and cathode is -. Discuss your answers to the 3 questions here: 1) Why Lithium? 2)How can we improve upon the Li-ion battery? 3) What are some far-out dreams for the next evolution in energy storage?

Everything is so thorough, with the spatial animations tying it all together😍 This really helps me understand concepts that are usually very difficult!

Great video! One note. Li-ion batteries can be safely discharged under 30%. The device will turn off at terminal voltage (around 3v) and reduce the rate at which lithium leaves the carbon. After a while in this state the battery protection FET will kick in (in the 2.5V range) and leave only self discharge. In other words: don’t worry! Drain to zero but don’t leave it there for too long (months). Also, don’t charge it to full and leave it in a hot environment (say over 35C) for and extended amount of time because that is bad. Charging at cold is worse but the device (software or hardware) should prevent that.

This channel really deserves more subscribers given the quality of your content!

Best explanation ever, you know why? You explained even the chemical reaction with half's reactions also.That i was searching for.Thank you for the video and info's.

These are unbelievably good and clear animations and explanations. Thank you and great work! You've earned a sub and you deserve many more.

This is why I enjoy these videos. I had a misconception of the positive end being green and pushing electrons to components, I was so wrong! I learned that the negative goes to the phone and comes back to positive (cathode and anode) all the information was really cool and well presented. Animations make it easy to visualize and understand. Keep up the amazing work!

I learn so much about general science/technology information on top of how it is applied to specific applications, love the content.

I finally well learned how a li-ion battery works! I really appreciate you work, thank you so much!

This is one of the best or probably the best illustration video I have seen describing how Lithium Ion batteries work in phones and devices. Excellent!

No detailed yet to-the-point video at the same time, can be possible than this one! Thanx a lot for such a lovely content..! The channels like this, are the jewels of YouTube...!

I will never look at charging my smartphone the same again. P.S. Your video was awesome and so incredibly easy to understand. Looking forward to seeing everything else you have.

Great animations and info! they look more amazing every video!

So much information wrapped up in just 9:30 min, definitely had to read many text book pages to gather such piece of knowledge, this channel is really worth subscribing!

Beautifully explained each and everything! Very helpful. Thank you so much 🙌