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DIY Batteries by Nicholas Wibbleson - Tue, 10 Jan 2017 11:48:31 EST ID:32cXOz64 No.78461 Ignore Report Quick Reply
File: 1484066911864.png -(1801389B / 1.72MB, 863x1343) Thumbnail displayed, click image for full size. 1801389
sup /chem/,

Looking for some decent DIY battery ideas. Doesn't have to be too compact, but I would like for it to fit on a desk perhaps and be able to shit out roughly 1.5-3.5V and maybe max ~25mA.

I've tried my had at a few types (pic related: quick dirty Earth battery with copper and zinc cathode/anodes) including earth (using several combos of cath/anodes), zinc-air, Al-air, and am setting up to create a MnO2+Alum/graphite cell just to test.

Question: What are some decent DIY battery builds? I'm not asking for any steps, simply just metal combos and whatever medium suites said combo. The charge density isn't all that important as it's to be expected to need to be recharged/reloaded. I'm certain with another cathode/anode in the Earth Battery pictured and a simple joule thief, I could squeeze out around 1.5V (haven't checked the amps yet). The idea here is just to get more ideas for DIY batteries and perhaps ideas for better performance. I'm aware of galvanic series and electrical potential, so I believe this thread is best suited for discussion and possibly personal experience.

Cheers
>>
trypto - Wed, 11 Jan 2017 21:28:31 EST ID:ltcKYWSL No.78463 Ignore Report Quick Reply
I think some type of lead-acid battery would be best. I don't have any experience with it, but it sounds like a cool project.


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