Sustainable Multivalent Batteries - Prof. Palacín Peiro | Battery Podcast

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Current #battery #cell #chemistries mostly rely on #lithium. They frequenty consist of #nickel and/or #cobalt as well. Eventhough these three #materials are not considered #rare-#earth #elements, the amount of accessible #raw material deposits are limited. Plus, as #production volumes of lithium-ion #batteries increase (and #prices are shocking producers!), #battery #researchers are seeking for #alternative innovative materials. These materials must indisputably improve sustainability standards with respect to #mining, #transport, #processing and #recycling. This is where "#multivalent #batteries" come into play!
Multivalent batteries are #electrochemical #storage #technologies that employ "multivalent ions", e.g., Mg2+, Ca2+, Zn2+, Al3+ as the active #charge carrier in the #battery #electrolytes as well as in the battery #anodes & #cathodes. Materials such as #magnesium, #calcium, #zinc or #aluminum are much more #abundant compared to materials inside a traditional lithium-ion battery.
Our #podcast guest is emphasizing another aspect: #Multivalent #batteries THEORETICALLY even provide greater #energy #density and #storage #capacity! This is due to their greater valency. Our guest expert, Prof. Dr. M. #Rosa #Palacín Peiro is a Spanish battery researcher at the "Institute of Materials Science" of Barcelona. She is a member of the "ALISTORE ERI" Network of Excellence, the President of the "International Battery Association" (IBA) and a member of the Governing Board for Batteries Europe (#European #Commission). She explains why multivalent batteries will be driven by the speed of research, sustainability, supply chain and price!
#Multivalent #Charge #Carriers - Download a chapter on multivalent batteries for the Encyclopedia of Electrochemistry: hiu-batteries....
Headlines on multivalent battery cell chemistries:
1) www.engineerin...
2) www.newscienti...
3) www.deccanhera...
4) www.intelligen...
www.hiu-batter...
www.celest.de/en/

[@ghougland]

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

[@batteryresearcher]

Excellent overview on multivalent batteries! 👍

[@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.

[@davidwilkie9551]

Very interesting

[@tigabuyemane6360]

it is very impressive approach. but i need stability issues of this multivalence battery if you can explain it in other part of you

[@imrankhan-lx2xk]

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

[@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. ❤

[@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.