3.1.11.2 Commercial Applications of Electrochemical Cells Flashcards
1
Q
What are the simplified electrode reactions in a lithium cell?
A
Li+ + CoO2 + e- = Li+[CoO2]-
Li = Li+ + e-
2
Q
How can cells be rechargable?
A
By reversing the cell reactions
3
Q
What is the voltage of a typical car battery?
A
12V
4
Q
What is a battery?
A
A group of two or more simple cells connected together
5
Q
What are the three types of cells?
A
Rechargable, non-rechargable or fuel cells
6
Q
What is a fuel cell?
A
A cell used to generate an electric current and do not to be electrically charged
7
Q
What are the reactions in an alkaline hydrogen-oxygen fuel cell?
A
2H2 (g) + 4OH- (aq) = 4H2O (l) + 4e-
O2 (g) + 2H2O (l) + 4e- = 4OH- (aq)
