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Author Topic: Recharge by changing electrolyte - Electrolyte flow battery.  (Read 4004 times)

Offline Paul-R

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Recharge by changing electrolyte - Electrolyte flow battery.
« on: April 22, 2017, 12:57:40 PM »
 New battery -recharge it by changing the electrolyte.   Electrolyte Flow Battery or Flow cell battery.
 
 A flow battery is a rechargeable fuel cell in which an electrolyte containing one or more dissolved electroactive elements flows through an electrochemical cell that reversibly converts chemical energy directly to electricity (electroactive elements are "elements in solution that can take part in an electrode reaction ...
 
 i.e. to recharge the battery, you drain the liquid and fill with another.
 
 https://en.wikipedia.org/wiki/Flow_battery
 
 Flow Batteries | Energy Storage Association
 
 New type of ?flow battery? can store 10 times the energy of the next best device | Science | AAAS
 
 https://cleantechnica.com/2015/06/21...kdown-looming/
 
 
 
 The question is: Can we get it together to build one for ourselves?

Offline dieter

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Re: Recharge by changing electrolyte - Electrolyte flow battery.
« Reply #1 on: April 22, 2017, 01:57:29 PM »
Interesting, thanks.

Offline profitis

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Re: Recharge by changing electrolyte - Electrolyte flow battery.
« Reply #2 on: July 07, 2017, 01:34:08 PM »
"The question is: Can we get it together to build one
for ourselves?"

Take a solution of Na2SO3 + NaOH + formaldehyde, shove two electrodes inner it.one electrode a piece blackened nickel and the other electrode a piece blackened silver.hold the silver close to the surface of electrolyte so it can access air.the only thing u ever haveto replace is the electrolyte after a long while

Offline Paul-R

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Re: Recharge by changing electrolyte - Electrolyte flow battery.
« Reply #3 on: July 08, 2017, 05:19:26 PM »
"The question is: Can we get it together to build one
for ourselves?"

Take a solution of Na2SO3 + NaOH + formaldehyde, shove two electrodes inner it.one electrode a piece blackened nickel and the other electrode a piece blackened silver.hold the silver close to the surface of electrolyte so it can access air.the only thing u ever haveto replace is the electrolyte after a long while
Interesting - What is the output?

Offline Gotwe

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Re: Recharge by changing electrolyte - Electrolyte flow battery.
« Reply #4 on: July 08, 2017, 05:37:06 PM »
Is there a way of recycling the used electrolyte?

Offline profitis

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Re: Recharge by changing electrolyte - Electrolyte flow battery.
« Reply #5 on: July 08, 2017, 10:45:17 PM »
The output can be pretty strong if you use rongalite c in solution or any highly reducable species compatible with alkaline environment and you have to play with those electrodes depthwise until you get to the max.rongalite c solution won't be easily recycled after air oxidation so must be disposed and replaced.rongalite is a potent h2 donor