Projekt Energie


Electrochemical Storage Accumulators


  • Accumulator (energy) - an apparatus for storing energy or power
  • Different  types with different materials
  • Voltage of the battery cell is determined by the materials
  • Capacity and current depends on the size
  • For higher voltages, series circuits are required (Ex. classic car battery with 6 x 2V secondary cells = 12 V)

How does a battery works?

  • Galvanic cell - electrochemical cell that generates electricity from movements of electrons from one element to another
  • Changes in the oxidation numbers (indicator of the loss of electrons in a chemical compound)
  • Oxidation (loses electrons)  and Reduction (gains electrons)
  • The ion or molecule that accepts electrons is called the oxidizing agent (by accepting electrons it causes the oxidation of the other)
  • What donates electrons is called the reducing agent

Mehr Inrormationen sind auf der Lernplattform zu finden.