Fuel Cell Technology

- overview & tutorial of fuel cells including where and how it is used, the various types and how they work.

Fuel cell technology is available in many forms.

However the basic concept behind fuel cell technology remains the same regardless of the actual means of realisation.

With fuel cell technology developing all the time as usage increases, new methods are being developed and introduced.


Fuel cell technology basics

There are many different forms of fuel cell technology, but they all operate in the same manner and utilise the same basic principles.

There are three basic elements to any fuel cell:

  • Anode:   In the generalised definition, the anode is the electrode through which an electric current flows into a polarized electrical device.
  • Electrolyte:   The electrolyte separates the two main electrodes and allows the ions to pass through the solution.
  • Cathode:   The generalised definition for a cathode is the electrode through which an electric current flows out of a polarized electrical device.

Within the fuel cell, two chemical reactions occur at the interfaces between the anode and electrolyte and the cathode and electrolyte. The overall result is that fuel is consumed, and electric current is generated along with by-products of water or carbon dioxide.

The reactions that occur are:

  • Anode:   At the anode a catalyst is sued to assist with the reaction that occurs there. The fuel is converted into a positively charged ion and a negatively charged electron.
  • Cathode:   The electrons flow through a wire into the load and positive ions pass through the electrolyte. When they reach the cathode the ions recombine with electrons entering the fuel cell from the load. They react with a second chemical, typically oxygen to produce water, or in some fuel cell technologies, carbon dioxide.

By Ian Poole


<< Previous   |   Next >>


Want more like this? Register for our newsletter









Whitepapers
Redefining LTE for IoT
ARM and NextG explain how LTE with its high data rates, complexity and capacity can be used to provide effective communications for IoT with its lower complexity and data rate requirements.

More whitepapers

Training
Applied Design of RF and Microwave Power Amplifiers (RF10-1014)
Discover how to successfully design RF and microwave power amplifiers on this 2 day course.

More training courses

From Machine to Machine to the Internet of Things
From Machine to Machine to the Internet of Things

Vlasios Tsiatsis, Ioannis Fikouras, Stefan Avesand, Stamatis Karnouskos, Catherine Mulligan, David Boyle, Jan Holler
Machine to machine communications is set to grow at a very fast rate. New...
Read more . .

USA bookstore UK bookstore









Radio-Electronics.com is operated and owned by Adrio Communications Ltd and edited by Ian Poole. All information is © Adrio Communications Ltd and may not be copied except for individual personal use. This includes copying material in whatever form into website pages. While every effort is made to ensure the accuracy of the information on Radio-Electronics.com, no liability is accepted for any consequences of using it. This site uses cookies. By using this site, these terms including the use of cookies are accepted. More explanation can be found in our Privacy Policy