My comments on the video :
a lot of exageration.
@4:33 : "CdTe solar cells won't scale" Exagerated. You need approx. 50x more Si. than Te to make the same amount of solar output in a PV cell. So the cost of a trace material like Te is not that critical. As with Lithium mining, supply slowly scales with demand.
@5:55 "platinum is OK for the jewlery market, but not for widespread use in automobiles" : LOL. That's completely wrong. Nearly half of the Pt mined today is eaten up by the automobile industry, to make catalythic converters ! His point on cost of FCEV still is valid, but exaggerated.
For once I agree with f4eru.
Without taking the quantities into account using 'cheap materials' is a totally meaningless claim. The specific energy (energy stored per kg) of the sodium-sulfur battery is more than twice of that of a Li-ion battery. That (roughly) means that a sodium-sulfur battery needs mining, transporting and processing twice the amount of materials.
Who else feels like saying loudly,,
When i can go on your webstore and order 10 liquid metal batteries then we will talk, not before.
Friend isn’t that what this website and form is all about? Discussing electronics, the design of electronic circuits, and future products? Only point in discussing a finished is product is doing a tear down. But let’s see if the professor gets a product before ripping it apart. He is a chemist, and if you learned anything about chemistry and half-cell potentials in freshman chemistry you would quickly realize this guy is on to something that’s far more realistic than free energy.
Who else feels like saying loudly,,
When i can go on your webstore and order 10 liquid metal batteries then we will talk, not before.
Friend isn’t that what this website and form is all about? Discussing electronics, the design of electronic circuits, and future products? Only point in discussing a finished is product is doing a tear down. But let’s see if the professor gets a product before ripping it apart. He is a chemist, and if you learned anything about chemistry and half-cell potentials in freshman chemistry you would quickly realize this guy is on to something that’s far more realistic than free energy.
Chemists have cried wolf too many times regarding new battery tech.
No cracking or other disintegration of cells since they are liquid? Really?
The case is made of steel, or stainless steel, so it doesn't melt.
The blue-ish/gray-ish thing is an insulator too. And steel isn't a good conductor has lots of resistivity that adds to the i2r losses.
The blue-ish/gray-ish thing is an insulator too. And steel isn't a good conductor has lots of resistivity that adds to the i2r losses.
that is the conductive molten salt
it is kind of irony I think, to make a better cell, it needs lower internal resistance, but the edges also self discharge faster
Maybe but there is a lot of steel in the outer casing so the total resistance shouldn't be that high.
"easy to come by" can be quite misleading.
https://en.wikipedia.org/wiki/Prices_of_elements_and_their_compounds
I hope nobody will protest the use of wiki prices?
if I/we assume economically abundant = under $10/kg, list of economically abundant under $10 elements
Zn, Si, Sa, O2, N2, Mn, Pb, La, Fe, H2, Cu, Ce, Cl, Cd, As, Ar, Sb, Al (the 2 most expensive of the $10 bracket are H2 (liquid) and Cu).
sulphur ($500), sodium ($250), at $250 (+/- $50) also sits our famous friend lithium and tellurium.
I thought that carbon should be really cheap, but carbon is $24/kg, similar as Sn.
The case is made of steel, or stainless steel, so it doesn't melt.
The issues to solve are probably more those of amalgaming, contamination, and secondary unwanted reactions among all the materials present.
Im not sadoway sir , that drawing is everywhere everytime you search "molten salts"
Metallic sodium is priced at about 15 to 20 cents/lb in quantity. Reagent grade (ACS) sodium in January 1990 cost about $35/lb. On a volume basis, it is the cheapest of all metals.
Cost per kilogram is one metric for battery materials, but for the primary reactants it seems that cost per mole would be more pertinent. The point is how many electrons per dollar are contributed, not how many per kilogram. I put together a short table of the top performers from this point of view. It is sorted by the cost/mole metric and clearly shows differences from a cost per kilogram metric.
The prices you find are for salts or oxides. Obviously Sodium Chloride is dirt cheap, as are other forms. An industrial scale user of sodium would set up the refinery on site and include that as cost of manufacture
Metallic sodium is priced at about 15 to 20 cents/lb in quantity. Reagent grade (ACS) sodium in January 1990 cost about $35/lb. On a volume basis, it is the cheapest of all metals.
The prices you find are for salts or oxides. Obviously Sodium Chloride is dirt cheap, as are other forms. An industrial scale user of sodium would set up the refinery on site and include that as cost of manufactureYes. Successful chemical industries find ways to use all the byproducts so it's hard to get an accurate cost estimate. If you were to produce sodium from NaCl you would e.g. have to add the cost of dissociation and subtract the profits from selling the chlorine gas (or you would use the chlorine as a reagent in some other process). There are many different raw materials and processes that you could get metallic sodium from which would yield different byproducts that could be used to produce a number of other chemicals. The industries using it probably won't divulge what it costs them either for business reasons. I.e. it would be very hard to figure out the real cost. But I'm pretty certain that metallic sodium will be very cheap.
This website even says it's the cheapest of all metals:QuoteMetallic sodium is priced at about 15 to 20 cents/lb in quantity. Reagent grade (ACS) sodium in January 1990 cost about $35/lb. On a volume basis, it is the cheapest of all metals.https://www.radiochemistry.org/periodictable/elements/11.html
Well if you want to go that direction, hydrogen is technically a metal and by volume is by far the cheapest. Having a low density may or may not be the proper pricing metric.
Brain didn't register the on "volume part"! Hydrogen would be cheaper in gas phase at least.
I was just saying sodium is cheap, and as the guy said, battery tech based on it will likely scale well because both Na and S is abundant here on earth.
Found attached graphs from iea, shows share of storage technologies except pumped hydro (which is about 10x the others combined). But new battery installations mainly use lithium-ion technology.