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Can it be used in the rain

NO NO NO. The charge and dis-charge curves are crap, as is the capacity.

Health department will , give them a zero just because of one person

She supposed to have gloves on when touching products

What an awesome channel!! You've got my subscription for learning more on battery technology

Excellent Video

yOUR VIDEOS ARE VERY VERY GOOD.

Very good content. Thx a lot!!

Excellent presentation Dr. Wu

This (paired with the first two videos) is an absolutely incredible introduction. I feel like i understand the heat treatment process 10000x better, wow.

Can you help me understand the time-temperature-transformation diagram and the terms related to it? Please please please

a. It may be seen that the time to peak hardness and the peak hardness itself are a function of the ageing temperature. Why does the curve at 30 °C not obey this general trend ? b. It may be seen that at the temperatures 110 and 130 °C an initial hardness plateau occurs before the peak hardness is reached whereas this is not found at the other temperatures. i. Why is such a plateau found at those two temperatures and not at the higher temperatures? ii. Would you expect such a plateau also at 30 °C, although at longer times? help me with these questions

Very nice

good job to whoever named "cast iron"

Prof : can I get your email please.. I have project in annealing

Sir. indeed an informative video, keep enlighten us. I request you to make some shots of TMT Bars (Primary and Secondary), and causes of failures. Thank you.

This was great, I learned a lot. Thanks Prof. Wu!

Great video....thx!

Thanks Dr. Wu appreciate your video. , however, troubled at the almost religion application of battery technology that has been appropriated in my absence.. Seems no one is willing to invest in the roots of development,, due to the immediate needs of smarter applications needed now.

this really helped...

Can you please share ppt?

Thanks for informing me of other performances. I can add

Nice one

Thanks Billy Wu ....Your videos have been so helpful and gives lucid explanation. Thank you so much. I have one request. If you can make a video on Gibbs Free energy, it would be great.

This is a tough subject, how long did it take you to understand it completely

Na ion battery is best for Stationary Grid scale storage. As Energy density dosent matter in that case, it just need to be cheap.

Hey, I would like to use this as a source for my research paper, is it possible I use this as a citation?

I still have issues with learning this and a lot of material science parts Idk why it feels hard for me to memorize Any advice?

why melting point for eutectic composition is lower than eighter of the elements

Wow

What a bad factory

I build home made batteries. Very difficult to get a cheap chemistry that does self discharge within a few days. I'd welcome any ideas you may have for a home builder. Good video. Take care Bret

How much safer is the LFP battery as some EVs have this type of battery? I have seen LFP penetrative tests on RUclips that seem to be a lot less dramatic.

What's the hold up? Why aren't there already massive capacities of these batteries?

Excellent presentation....very well done. An in-depth investigation of many different materials having potential use for sodium batteries. Did not expect to find this on a RUclips video...thank you!👍

Thank you very much, this helped light years of work, it is so well explained, thank you my friend

I see your accurate ; but it must be pointed out to people - batteries do not need to be abused to catch fire. Recently a ship containing brand new just produced EVs had brand new never abused batteries catch fire burning the entire ship up. It is critical for buyers or potential buyers to realize there is a risk of fire with EV batteries even if you do not abuse them at all. This is due to dendrites; deposits that can build inside the battery which can short basically at random causing a fire; once one battery catches fire it spread to thousands of other batteries and there is really nothing that can stop that fire.

Incredible lecture!

Incredible lecture!

The three videos you have produced about phase diagrams, phases of steel, and this one are extremely well done. They are very easy to understand and I am grateful that you spent the time to put them together. Do you have a video on the bronze (Cu-Sn) phase diagram, or know of one?

wow! this is very simple but impressive explanations of a complex subject about the consequential effect of carbon when added to iron.

I skipped right to the cost segment. What a shame. The price floor set by materials costs appears too damn high. Sodium ion batteries are not going to bring about the extremely cheap storage that we need for multi-day wind energy storage - as wind energy appears to have a lot of day-long periods of little energy production.

Great video! I also did a video about sodium-ion, but less detailed.

Amazing presentation. I love that the entire presentation is super clear, detailed and to the point. Love it.

Great video my friend👍👍

Fantastic video - everything I wanted to know about the options for sodium ion batteries.

Very well done Sir. I found this video by searching for grain structures. For me it is importend to know the relationship between alloys and grains structures versus magnetism. I would like to magnetise a steel alloy to the highest possible magnetic field, and i do not understand which element or phase, or grain structure is responsible for that. Some 100 years ago they used a lot of Tungsten(W) to increase magnetic properties of steel. I don't know if that is the only way. Thanks.

what are the BMS settings and charger settings?

Thanks a lot for this video Professor Wu. I've learnt a lot from you today. I'm wondering why there's no much talk about potassium ion batteries. I thought the much larger ionic radii of potassium compared to sodium and lithium should be compensated by it's reduction potential that's similar to that of lithium. Potassium is also more abundant than lithium. What about possible magnesium ion batteries?