Selfmade powerful DIY Nickel Zinc Accumulator

[profitis]

it will be anode 2Zn=2Zn2+ + 4e- 0.7v and cathode PbO2 + SO4-- + 4H+ +4e- =PbSO4 + 2H2O 1.6v. Total voltage should be round 2v depending on acidity(ammonium sulfate is slightly acid).alum may be better(slightly more acid).dont use sulfuric acid as it will eat zinc plate too fast.prep your cathode by passing current btween a lead plate and a carbon rod in sulfuric acid solution beforehand, then rinse.carbon must be connected to the negative terminal of your power source and give up hydrogen bubbles.

[hartiberlin]

Well I am going away from Nickel Zinc batteries to Do It Yourself...

It is just too complicated and I will better work now on the Graphite-Zincoxide rechargeable batteries,
see the example here:

https://www.youtube.com/watch?v=39rxgQ-7VOo

and the theory, sorry only in German language:

https://www.youtube.com/watch?v=pX20Mvdebak

Regards, Stefan.

[hartiberlin]

By the way, 3 days ago I almost burned up my kitchen when I tried to open up a still pretty much charged NiMH Double A
battery !

I did not know, that the Hydride metal stuff in the NiMH negative electrode can SELF-IGNITE when coming in contact with air
and thus I was lucky, that I did this experiment at my sink and not in my living room or balcony...

SO NEVER OPEN UP A CHARGED UP NIMH BATTERY CELL !

Have a look here and please SHARE this knowledge with your Facebook friends and spread it widely to not
cause any fires and damages !

P.S: I just wanted to extract the Nickel metal electrode from this NiMH cell, but it just heated up when
I tried to unwrapp the cell and self ignited the diaphragma paper and just burned up pretty hot.

ALso my kitchen was full of smoke, so I probably breathed a lot of bad fumes...

So be very carefull with handling fully charged up NiMH batteries !

https://www.youtube.com/watch?v=NV_CBLxIczc


Stay safe !

Regards, Stefan.

[profitis]

yes the charged anode combusts on exposure to air,same as li-ion.today i was also experimenting with cells and created a unique battery system that takes in oxygen at the cathode and spits out oxygen at the anode.electrolyte remains unchanged.im monitoring power levels carefuly,so far 100microamp at 0.2volt/1mm2 area electrodes which is very promising because 1mm2 is tiny.i have to source larger material now.