Lisäelektrodien

Lisäelektrodien, often translated as auxiliary electrodes or accessory electrodes, are components used in various electrical and electrochemical applications. They are distinct from the main or working electrodes and serve a supporting or complementary role. Their primary functions can include completing an electrical circuit, providing a stable reference potential, or enhancing the efficiency of a process.

In electrochemical systems, particularly in three-electrode setups, the auxiliary electrode is crucial for driving the reaction at the working electrode. It allows the current to flow through the electrolyte, completing the circuit between the working electrode and the potentiostat. Without an auxiliary electrode, the current would not be able to pass, and the electrochemical experiment would not proceed. The material and surface area of the auxiliary electrode are chosen to ensure it does not become a limiting factor in the experiment and does not interfere with the measurements at the working electrode. Common materials include platinum, carbon, or stainless steel, depending on the specific application and electrolyte.

Beyond electrochemistry, the term "lisäelektrodien" can also refer to additional electrodes in other electrical contexts, such as in medical devices like electrocardiograms (ECG) where extra electrodes might be used for specific lead placements or noise reduction. In some industrial processes, extra electrodes might be incorporated to improve conductivity or distribute current more evenly. The specific design and purpose of lisäelektrodien are highly dependent on the technology and the intended application.