# Maximum voltage

1. Jan 13, 2009

### yjk91

1. The problem statement, all variables and given/known data
Describe a wet cell battery and explain its operation?
How would would ensure getting maximum voltage. Assume you are only permitted a single cell.

3. The attempt at a solution
I got the first question, but i don't get how to answer the second question. i know that when a wet cell battery is in a hot climate, the water in a battery will evaporate or accumulate the chemical inside. other than this i have no idea how to answer this question. Also i think using chemical that have large potention Energy.

2. Jan 13, 2009

well if single cell means only one wet cell, then i think i can answer it.

you have to use the standard reduction potentials table to find the half reactions that will react to form the most voltage.

using the table, i get:

(1st half reaction) F2(g) + 2e- $$\rightleftharpoons$$ 2F- Eo = 2.87Volts

(2nd half reaction) Li(s) $$\rightleftharpoons$$ Li+ + e- Eo = 3.04 volts

(Cell Redox reaction) 2Li+ + F2(g) $$\rightleftharpoons$$ 2F- + 2Li(s) Eo = 5.91 volts.

This is the highest voltage possible with a wet cell i think...well hope i helped.

Last edited: Jan 13, 2009
3. Jan 13, 2009

### yjk91

thanks i understand it now

4. Jan 13, 2009