Can a dry cell be made rechargeable?

  • Thread starter Thread starter Doriangrey
  • Start date Start date
  • Tags Tags
    Zinc
AI Thread Summary
Dry cells are typically not rechargeable due to the reaction between zinc and ammonia, which forms complex compounds that cannot be revived. The discussion explores the possibility of using zinc and zinc oxide as electrodes in an acidic medium to create a rechargeable cell. However, the feasibility of this idea is questioned, highlighting the need for any new battery chemistry to outperform existing technologies. Safety precautions for experimentation are emphasized, including the use of protective gear and equipment. Ultimately, the consensus is that dry cells cannot be made rechargeable.
Doriangrey
Messages
5
Reaction score
1
Thread moved from the technical forums to the schoolwork forums
TL;DR Summary: Dry cells are usually not rechargeable but I had a few ideas.

Basically dry cells are not rechargeable as zinc reacts with ammonia to form complex compounds which can't be revived. Consequently the quantity of reactants reduce thus hindering it from recharging.
So in a dry cell, Zinc and Manganese oxide/graphite are taken as electrodes. What if we took Zinc and Zinc oxide as electrodes? They could be kept in an acidic medium, and as both are of same degree of reactivity, could the cell now be recharged?
 
Physics news on Phys.org
"If we had some eggs, we could have some ham and eggs, if we had some ham...."
 
  • Like
Likes russ_watters, Vanadium 50 and topsquark
What would be the point? You are essentially proposing a new kind of battery chemistry - why do you think this has been overlooked by what is a multi-billion dollar business?
 
Vanadium 50 said:
What would be the point? You are essentially proposing a new kind of battery chemistry - why do you think this has been overlooked by what is a multi-billion dollar business?
I have to make an investigatory project and thought of constructing a cell which is rechargeable is all. So the only thing that matters to me is if it works or not
 
So what do you need from us? If you need to do the experiment for school, you should do the experiment.
 
Doriangrey said:
I have to make an investigatory project and thought of constructing a cell which is rechargeable is all. So the only thing that matters to me is if it works or not
"Works?" Or works for how many/few charging cycles? Deep cycles? High current?
 
  • Like
Likes Vanadium 50
Vanadium 50 said:
So what do you need from us? If you need to do the experiment for school, you should do the experiment.
In a fume hood, while wearing safety glasses and a thick apron, with a fire extinguisher and safety shower nearby...

1689005020693.png

https://nadisolab.com/product/laboratory-safety-shower/
 
  • Like
Likes hutchphd, Vanadium 50 and Bystander
  • #10
They all work very well. Each has its particular weakness. It would be important for any newcomer to outperform the existing technoloogy. By what margin does the proposed @chemisttree battery accomplish this? This is a theory question for the OP.
 
  • #11
Doriangrey said:
TL;DR Summary: Dry cells are usually not rechargeable but I had a few ideas.

Basically dry cells are not rechargeable as zinc reacts with ammonia to form complex compounds which can't be revived. Consequently the quantity of reactants reduce thus hindering it from recharging.
So in a dry cell, Zinc and Manganese oxide/graphite are taken as electrodes. What if we took Zinc and Zinc oxide as electrodes? They could be kept in an acidic medium, and as both are of same degree of reactivity, could the cell now be recharged?
No, dry cells cannot be made rechargeable.
 

Similar threads

Back
Top