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Design of zinc bromide flow battery (discuss.tchncs.de)

submitted 1 year ago by Rolive@discuss.tchncs.de to c/diy@slrpnk.net

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This type of battery seems quite easy to DIY. Cheap materials, relatively safe, not flammable.

You can either maken individual cells or make a flow battery which is theoretically infinitely scalable. You'd be limited by the size of the electrode in how much power this battery can deliver.

Has anyone here tried to make a flow battery? And did you have any success with powering something large and energy consuming?

I guess it would also be possible to make a battery out of old buckets, carbon fiber mesh and separator material such as glass fiber.

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[–] poVoq@slrpnk.net 6 points 1 year ago

While relatively easy to build, they seem quite complex to manage and have a risk of explosive hydrogen gas production and even toxic bromide gas in rare cases.

Probably not a DIY project that is easy over all.