Week 2 Challenge

Question 1:
Compare four different types of fuel cells and state their applications.

Properties	Proton Exchange Membrane	Alkaline Fuels cells	Phosphoric Acid Fuel Cells	Solid Oxide Fuels Cells
Definition	Proton Exchange Membrane (PEM) fuel cells are a type of fuel cell that uses a proton-conducting polymer membrane as an electrolyte.	Alkaline Fuel Cells (AFCs) are fuel cells that use an alkaline solution, such as potassium hydroxide, as an electrolyte.	Phosphoric Acid Fuel Cells (PAFCs) are fuel cells that use phosphoric acid as an electrolyte.	Solid Oxide Fuel Cells (SOFCs) are fuel cells that use a solid oxide material as an electrolyte.
Operating Temperature	Around 80-degree celsius	Around 60-80 degree celsius	Around 200-220 degree celsius	Around 600-1000 degree celsius
Efficiency	40-60%	60-70%	40-50%	60-70%
Life span	4000 to 8000 hours	20,000 hours	20,000 to 30,000 hours	20,000 to 30,000 hours

Question 2:
Using a plot with energy density and power density on the X and Y axis, arrange various battery types like lithium-ion, lead acid, Nickel Cadmium, Ultracapacitor, and fuel cell.