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2 votes

Differences between galvanic cells and Li-ion?

In a lithium ion battery, no metallic lithium is present physically. Lithium atoms are "dissolved" in a graphite mass, where they are ionized into lithium ions, which gets taken in between ...
Maurice's user avatar
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-1 votes

Differences between galvanic cells and Li-ion?

in a galvanic cell a metal such as zinc spontaneously loses electrons at the anode which are accepted by the cations in the electrolyte, for example Cu2+. This naturally creates a need for anions at ...
brielmannh's user avatar
0 votes

What current and voltage are best for electrolysis rust removal?

I've just set up a small tank. My smart ass charger no good so I've borrowed a bigger one with a gauge on it. Its set to minimum but if the gauge is to be believed, it is showing 5 amps and it is ...
David Goddard's user avatar
13 votes
Accepted

What happens to an ongoing electrolysis when you turn off the battery?

This is a very good question! I'm not sure why you received a downvote. What you are asking about is called a polarization current. Suppose we are electrolyzing a solution and suddenly we stop the ...
AChem's user avatar
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2 votes

Does electrode material affect efficiency of water electrolysis?

Nickel, which you're using, is reasonably efficient (in having low resistance and not building up an electrically resistant oxide layer). Monel alloy (Cu-Ni) also works well. BTW, alkaline electrolyte,...
DrMoishe Pippik's user avatar
3 votes

Fundamental understanding of electrode potentials

Consider an electrode immersed into an electrolyte, two things can occur. Metal ion $M^{n+}$ from the solution may collide with the electrode, gaining $n$ electrons from it, and convert to metal ...
wqeq's user avatar
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0 votes

Fundamental understanding of electrode potentials

Negative charge is kept near surface by attraction of excess positive ions in solution. The reason for ions going into solution and electrons staying in metal is electron's De broglie wavelength ...
Paul Kolk's user avatar
  • 408
1 vote

Electrolysis to refine metals

It is much easier to oxidate metallic copper than hydroxide or sulfate ions, what you can check yourself in a table of standard reduction potentials. Dissolving copper ions does not allow raising the ...
Poutnik's user avatar
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1 vote

Electrolysis to refine metals

If a copper plate is dipped into a $\ce{CuSO4}$ solution, your process may occur. Some electrons may be creaated at the surface of the copper plate, which later on will interact with copper ion from ...
Maurice's user avatar
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