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I don't think I will play with this backplated configuration anymore. It is too hard to make because basically any mistake in the entire assembly or any deterioration of the insulating coating means you will get dendrites that will short the battery. It is a very difficult to engineer approach...

I had to restart the test because of a computer issue (computer restarted in the middle of it for updates :( ). After 70 cycles of the new test the CE=95.55% and the EE=66.86%. It seems the battery is perfectly stable, after going through 100 cycles at 2mA and 100+ cycles at 5 mA, the CE and EE...

Thanks for your reply and likes! I'm glad you like to follow my progress. About your "random query", sadly I am unfamiliar with the topic you mention, so I cannot help answer your question.

I am not recirculating, this is not a Zn-Br flow battery (the wikipedia page is mainly about this type), this is a static Zn-Br battery. I use a graphite anode for zinc deposition, TMPhABr as a sequestering agent for bromine which is imbedded in a GFE-1 graphitic carbon felt cathode and an...

I just published a blog post discussing this experiment (https://chemisting.com/2020/09/19/zinc-bromine-batteries-can-we-just-put-solid-tbabr-in-there/)

Thanks for your suggestions! :) I have confirmed the effect of chloride ions to an extent. In some experiments I made, saturating 3M ZnBr2 with NaCl, I was able to increase the efficiency values of the devices (to CE = 94.37%. EE=74.60%), those curves are posted on the thread. The main...

Not that I know of. However they might contain some small amount, I haven't done any extensive analysis of the chelates. Pure Mn-EDTA is 13% Mn by weight, so if it contains any lime, it is likely not much.

I just wrote a post about the these results using TMPhABr (https://chemisting.com/2020/10/02/zinc-bromine-batteries-going-for-high-capacity-with-tmphabr/). I am now going to try to use TMPhABr in a solid layer and a ZnBr2 at 2M saturated with TMPhABr as the electrolyte to attempt to get the...

This is another post I wrote, concerning a test with PEG-200 at 6% and some air bubbles that cause problems with electrode surface area. https://chemisting.com/2020/10/31/zinc-bromine-batteries-peg-200-bubbles-and-over-potential/