Please enable JavaScript.
Coggle requires JavaScript to display documents.
To design an electrochemical cell that produces an optimal energy output -…
To design an electrochemical cell that produces an optimal energy output
Types of electrochemical cells
Hydrogen fuel cells
Disadvantages
Applications
Galvanic cells (aka voltaic cells)
relies on the spontaneous redox reactions (oxidation and reduction reactions) to produce electrical energy.
Disadvantages
Applications
Possible IV(s)
Metal ion solution
different chemical makeup of the metal ion solution
Temperature
Type of metal
Different types of metal has varying reactivity/ electrical potential. Metals with high electrical potential makes up a high energy density/more efficient battery
Examples of high electrical potential metals are nickel, lithium aluminium and zinc
Electrolyte solution
SA of blocks of metal
Amount of liquid surrounding the anode/cathode
Possible controlled variables
How is the output of energy measured
The produced electrical energy by electrochemical cells are often measured in watts and/or kilowatts
Materials used to measure electrical energy
Ammeter
Electric currents are measured in amperes (A)
count of the number of electrons flowing through a circuit
Voltmeter
measures the electric potential difference
A higher voltage means that there is more energy that can be used from the same amount of current.
Measures voltage (pressure)
The pressure/potential electric difference is measured by units of volts (V) and/or amperes (A)
Generic components of a electrochemical cell
2 Electrodes
Anode
Where oxidation occurs, electrons are loss during the process
Cathode
Where reduction occurs, electrons are gained throughout the process
2 Electrolyte solutions
should select an electrolyte that includes an element used in one or both of the half-cells
For example, if one of the half-cell reactions is with copper, a good choice of an electrolyte is CuCO3 or CuCl2.
Salt bridge
used to prevent the build up of charge while conducting reaction