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In an electrochemical cell, reduction and oxidation reactions take place at the electrodes. The electrode at which reduction takes places is called the cathode. Oxidation takes place at the anode. Whether an electrode operates as a cathode or anode depends on the direction the cell is operating in. If a cell is switched from operating galvanically (i.e. outputting energy like a battery) to electrolysis (energy is input to the cell) then its cathode will become its anode and vice versa.Baca selengkapnya -
Electrodes can be defined as conductors that are used to make electrical contact with a non-metallic part of the circuit. The term was first coined by William Whewell and derived from Greek words Elektron, which means “amber” and hodos which translates to “a way.” An earlier version of an electrode was the electrophore which was used to study static electricity. It was invented by Johan Wilcke. To help you understand the concept in simple terms, an electrode is a point where the current enters and leaves the electrolyte. Notably, an electrode does not necessarily have to be metals.Baca selengkapnya -
In general, an electrode is an electrical conductor which makes contact with a non-metallic part of a circuit. In a battery, the electrodes connect the battery terminals to the electrolyte. The electrode at the positive terminal is known as the cathode and the electrode at the negative terminal is known as the anode. Each electron is itself polarized, so that where they contact the electrolyte, the cathode is negatively charged and the anode is positively charged.Baca selengkapnya
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