Category Archives: Electrochemistry


Electrochemistry occurs – how could it be otherwise – at the interface between electricity and chemistry. Consider phenomena that occur when chemical reactions generate an electric current, or when you can use electricity to modify chemical compounds or materials. For example, chemical reactions in batteries and fuel cells generate electricity. Conversely, electrolysers allow hydrogen gas […]

Electrochemistry of the fuel cell

In an internal combustion engine in your car, the fuel – petrol, diesel, LPG – reacts directly with oxygen. The larger volume of combustion gases pushes a piston back and forth, and a crankshaft converts this back-and-forth movement into a rotating movement for the car wheels. Chemical energy from the fuel is converted into useful […]

Impedance spectroscopy: monitoring of electrochemical processes

If you want to measure the corrosion progress or the performance of a fuel cell, impedance spectroscopy is a suitable technique. This allows you, for example, to monitor processes within electrochemistry such as corrosion over time by taking measurements at regular intervals. Materials science meets electrical engineering. Suppose you are an electrician and you want […]

Electrochemistry behind rechargeable lithium ion batteries

Batteries exist by the grace of people who want to be mobile at all times. Lithium ion batteries are especially popular because of their high energy density – up to 200 Watts of energy per kilogram of battery. But also because they can be recharged over and over again without deteriorating significantly. And that’s why […]