What is Cells?
The device which convert electrical energy into chemical energy or chemical energy into electrical energy is called cell.
Types of Cells
Cells are of two types;
1. Electrochemical Cell
The cell which convert chemical energy into electrical energy is called electrochemical cell.
Eg: Daniell cell
Daniell Electrochemical Cell Diagram
2. Electrolytic Cell
The cell which convert electrical energy into chemical energy is called electrolytic cell.
Ex- electrolysis of NaCl.
o In electrolytic cell redox reaction takes place.
o In electrolytic cell non-spontaneous (ΔG = positive) reaction type is proceed.
o For this cell, the value ΔG is positive.
The Electrolysis of Molten NaCl
If H Cl solution is take place in electrolytic cell then the following reaction takes place at cathode and at anode
H CL ⇔ H+ Cl–
At cathode: H+ + e- → ½ H2(g)
At anode: Cl– → ½ Cl2(g) + e-
Electrochemical Cell Citations
- An electrochemical cell for in operando studies of lithium/sodium batteries using a conventional x-ray powder diffractometer. Rev Sci Instrum . 2014 Oct;85(10):104103.
- Electrochemical cell-based chip for the detection of toxic effects of bisphenol-A on neuroblastoma cells. Biosens Bioelectron . 2011 Mar 15;26(7):3371-5.