Sustainable Multivalent Batteries - Prof. Palacín Peiro | Battery Podcast

[@ghougland]

Excellent evaluation of the multivalent alternatives that goes way beyond the optimistic hype.

[@ampadysheikslal.9905]

Excellent views as far as an electrochemistry student is concerned. In Aluminium, an incredible chemistry already came from Prof. Donald Sadoway( MIT) (Aluminium- Sulfur) and is scaling up now . Prof. Palacin is great. Very informative.

[@batteryresearcher]

Excellent overview on multivalent batteries! 👍

[@davidwilkie9551]

Very interesting

[@christopherleubner6633]

Use a dual mode battery using Na+ and Mg+2 ions collector anode material would be silicon and carbon on a scaffold of aluminum. For the cathode material use a polymer bonded substrate of iron metafluorophisphate combined with ferrocyanide on an iron manganese alloy substrate. For the electrolyte a polar aprotic organic solvent will do. The batteries would be bulkier than lithium ion but would have a longer life as well as being able to take deep discharges since there would be no dendritic forming metallic components. ❤

[@imrankhan-lx2xk]

instead of dc storage worked on Ac is the best choice at all

[@4Nanook]

multivalent batteries suck because the discharge curve makes control electronics complicated and expensive, and the stated capacity is deceptive because at least half that capacity will be in the lower voltage portion of the discharge curve and thus the real energy density is only about half what the stated voltage and amp-hour rating would suggest.

[@christopherleubner6633]

The batteries would need a compensation circuit, a boost converter built in to work for most uses, similar to the circuit in a 5V USB charging device. The input voltage is 5V output is 5V but the actual battery voltage ranges from 3.4 to 4.2V. Without the low voltage cutout, they can convert 1.2 and up to 5V. These alternative metal ion batteries do not have the overdischarge issue of lithium with the exception of aluminum which is actually a polysulfide -2 ion. Overdischarging creates nonconductive sulfur.