Electrochemical cell

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MaryBanh_2K
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Electrochemical cell

Postby MaryBanh_2K » Fri Feb 14, 2020 1:06 am

I'm confused about how an electrochemical cell operates. I understand that oxidation occurs at the anode and reduction occurs at the cathode, but overall what is the charge of the cell and what is the meaning of this circuit?

005324438
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

Re: Electrochemical cell

Postby 005324438 » Fri Feb 14, 2020 6:24 pm

Basically how a cell works is that it separates two materials that can create a redox reaction, but allows them to be connected by a material that can conduct electricity. When this connection is made, the two species are allowed to react, and electrons flow through the circuit, powering it. When these materials reach equilibrium, electricity doesn't flow anymore, and the battery dies. For rechargeable batteries, the reaction is reversible, and forcing electrons through the system in the opposite way they're released reverses the reaction, renewing the energy source.

005162520
Posts: 101
Joined: Tue Sep 24, 2019 12:17 am

Re: Electrochemical cell

Postby 005162520 » Mon Feb 17, 2020 12:03 am

For the reverse reaction, how is the electron flow ? Does it shift the oxidation and reduction sides?

Mitchell Koss 4G
Posts: 128
Joined: Sat Jul 20, 2019 12:17 am

Re: Electrochemical cell

Postby Mitchell Koss 4G » Mon Feb 17, 2020 2:14 pm

There is not really a shift but more of a connection that allows e- to flow

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: Electrochemical cell

Postby 805097738 » Tue Feb 18, 2020 6:34 pm

So this redox reaction occurs within a single cell?


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