The roadmap defines 3 milestone batteries. The first is released, it's a benchtop device that you can relatively easily build on your own. It has an electrode side of 2 x 2cm2. It does not store any significant amount of energy. The second one is being developed right now, it has a cell the size of a small 3d printer bed (20x20cm) and will also not store practical amounts of energy. It will hopefully prove though that they are on the right track and that they can scale it up. The third battery only will store significant amounts of energy but in only due end of the year (probably later).

Current Vanadium systems cost approx. 300-600$/kWh according to some random website I found. The goal of this project is to spread the knowledge about Redox Flow Batteries and in the medium term only make them commercially viable.

The aniolyth and catholyth are based on the Zink-Iodine system in an aqueous solution. There are a bunch of other systems though, each with their trade offs. The anode and cathode are both graphite felt in the case of the dev kit.

10mo ago

DIY experimental Redox Flow Battery kit

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callcc @lemmy.world 10mo ago

Happy to hear! That must be the Lithium mafia! Just kidding. I have no clue why people downvote this. Maybe because it's a crosspost? I must admit I didn't read the community rules.

10mo ago

DIY experimental Redox Flow Battery kit

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callcc @lemmy.world 10mo ago

I'm building one and am super excited. Unfortunately I need to waid for some more parts to start experimenting.

10mo ago

DIY experimental Redox Flow Battery kit

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callcc @lemmy.world 10mo ago

You need Polypropylen filament for printing, graphite felt as electrode, grafoil gasket material as bipolar plate, brass plate as current collector (cut by cnc), silicone gasket material and a measurment device like a potentiostat.

If you're really interested, living somewhere in the EU, I could send you some stuff. I also have the chemicals in big quantities.

11mo ago

Where to get good real leather shoes?

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callcc @lemmy.world 11mo ago

Panama Jack I think.

11mo ago

iMessage has trouble with a simple layout

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callcc @lemmy.world 11mo ago

Probably it's new AI based layout engine.

11mo ago

VERY simple web-based reliable file browser/hosting

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callcc @lemmy.world 11mo ago

Don't recommend using FTP. It's a shitty old protocol that needs to die. Just use nginx or apache with directory listing enabled.

11mo ago

Okay why is your distro the best?

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callcc @lemmy.world 11mo ago

Since I'm old and need to deal with administrating a bunch of machines for work, I settled on the most dull and unsurprising distros of all: debian. Sure, when I was younger and eager to learn and with much time on my hands, I used gentoo (basically what is now arch) and all the others too.

11mo ago

YSK that apart from not having a car and voting, the single greatest thing you can do for the climate is simply eating less red meat.

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callcc @lemmy.world 11mo ago

If you don't consent to being born into this world right now, would that not mean that you should just kill yourself? I off course don't mean to say that you should, but I'm curious why you have a drive to live, and thereby consuming precious resources that could benefit less defeatist people. Or would you have chosen differently if you had been asked when you were born.

I understand that we seem to be in a global situation where imminent doom is unavoidable but maybe you should ask older people or read up, because I think these things happen on a regular basis.

And no, I don't want to downplay the consequences of the multiple clusterfuck of global catastrophes we're heading into (since a long time). Maybe I'm just a hopeless optimist :).