Making a vanadium redox flow battery

The students in the Energy Storage Centre for Doctoral Training at the University of Southampton were challenged to make a battery and test it. Here's what they did.
Background music courtesy of Incompetech.com.

[@Buzzhumma]

I am going to study vanadium because of this video 🤗🤗

[@ferhatpertekli1800]

Hello, I'm working about designing vanadium reflow batteries . How can I get this solidworks drawning or this drawing dimensions

[@mattharvey8712]

Wow........a short store long ......long storie short......i love what u all are doing n ........voltage..?.......?......that cell look like a heart.......i heard if u change temperature. .....u get more power........? Is that a polypropylene membrane??? Cheers

[@reactionchamber]

could u please tell me, where did u buy this special flow half cell for ur stack?! cant find any online...

[@charlesvanderhoog7056]

Error at 1:00. it should read - e (minus) instead of +e.

[@MTICorp]

good video-- thank you

[@MaxAigner]

how much are the material costs of the battery and how much kWh does it storage?
I am not sure if I skipped this information in the video but it would be quite interesting probably for a lot of people, I guess. (?) :)

[@Belfastisshit]

The battery in this video probably stores somewhere around 5W but it's hard to tell

[@hardchemist]

​@@Belfastisshit Presuming you meant 5Wh that's generous. It's not like they used incandescent lights to discharge the flow battery.

[@garethbaus5471]

The costs wouldn't scale linearly with the storage since you can litterally increase the capacity simply by increasing the size of the tanks without needing to scale the rest of the battery with it.

[@vyassinghal1949]

Hello ESA ..can you please tell me more about the half cell which you have used in the project. As i am not able to get that component

[@edoardoagostini1800]

Hello there, congratulation for the project.
The membrane that separate the different electrolites what it is???

[@rapsforlife3819]

He said nafion membrane

[@petevenuti7355]

What alternative proton exchange membranes are there?

[@ClericChris]

What was the CAS of the Vanadium Oxide?

[@oderickshimikuluilunga3627]

Hey guys. I am a student in Chemical Engineering at the University of Pretoria in South Africa. I happen to be working on a project which deals with a vanadium redox flow battery. I am having trouble with my electrolyte solution. I would like to know if it is possible for you to shed some light on the electrolyte with regards to the methods you used and the concentrations of the compounds. My problem so far has been the low solubility of Vanadium pentoxide. I tried to dissolve it in 3M sulfuric acid but I'm getting a suspension, rather than a solution. Any tips would be highly appreciated. Regards. :-)

[@energystoragecdt2829]

+Oderick Shimikulu Ilunga “We were only using low concentrations of vanadium e.g. 100mM V2O5 in 2M H2SO4 since we wanted fast charge and discharge to allow quick and clear colour changes in the electrolyte - our cell was designed for demonstration to the general public - so I’m afraid we don’t have much experience in dealing with high concentrations. Even at these low concentrations we generally needed to mix solutions for up to an hour to let the V2O5 fully dissolve. This paper (www.sciencedirect.com/science/article/pii/S0378775308024762), which looks at some high concentration vanadium electrolytes, might be of some use to you.”

[@firedemotions]

Sir, I am doing the same research, can we exchange emails?
Regards.

[@parthbhide7120]

As am I. Any insight you have with respect to this issue would be greatly appreciated.

[@lanelebaron]

If I want to build one for myself what info/direction can you give me to build one?

[@beatflozepp]

Me too, how much it cost to build one of those batteries? I want to use seawater as an electrolyte. I don't know if this would be a good idea

[@cayrex]

@@beatflozepp emmm,.... you can not use seawater as an electrolyte, because is vanadium based. You need vanadium oxide solution electrolyte

[@beatflozepp]

@@cayrex Thank you.

[@kam7000]

@@cayrex You can use an iron based redox flow along with salt water to produce similar effects. Vanadium isn't the only material with chemcial electro reactions. This also includes magnesium & more

[@cayrex]

@@kam7000 For sure,... you have many different chemistries and milions ways to make a cell. But vanadium is the most popular flow battery type which you can find on the market. The next flow batteries which you can also find on the market are all iron redox, zinc cerium, zinc bromine,.... and in the end you have many flow batteries which are in development.

[@petevenuti7355]

What does "mass transport limit" mean?

[@dilekyalcn893]

Hi, may you give one of your e-mails,please? I would like to ask some questions that's why i study v-rfbs,too. I am a MSc student and am going to make v-rfb cells and test. Please :)

[@reactionchamber]

Where did u buy the half cells and the carbon foam?

[@Morain42]

Do you use the same volume in each reservoir, or is one double the other?

[@roboburr]

how long does a charged battery of this kind last ?

[@Da-ko3ye]

I read it lives indefinitely because the liquid never spoils, easy to maintain. Image every houses having its own vanadium battery in its basement... Please Energy Storage CDT make an even more easy-to-follow tutorial video to allow everyone to build its own battery, you could change the world

[@absolute___zero]

@@Da-ko3ye it is not a battery it is Seventh Wonder.

[@huat99me]

hope your idea to our products

[@shantahsieh4833]

Really enjoyed your video. Let's check Avasva plans also

[@charlescedricryder]

bunch of swats. I hope you all got firsts and good jobs.