cathode
1
7.0
- noun
- /ˈkæθoʊd/
- Specialized
:
cátodo
- At the anode of the fuel cell, hydrogen is being oxidized (losing electrons), and at the cathode, oxygen is being reduced (gaining electrons).
- oxygen on the cathode
- cathode side
So during charge, we start to see the movement of those lithium ions from that cathode across to our anode and they move through that electrolyte.
- So during charge, we start to see the movement of those lithium ions from that cathode across to our anode and they move through that electrolyte.
Examples
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The battery packs are assembled at Tesla's plant in Fremont, California, using Panasonic cells with nickel-cobalt-aluminum cathodes.
Blog text (18) -
Here at the cathode, oxygen is reduced and gains electrons.
Academic text (2010) -
The hydrogen is introduced on the anode side, and the oxygen on the cathode side.
Academic text (2010) -
Hydrogen bubbles form around the cathode, while oxygen bubbles form around the anode.
Academic text (2010) -
Gaseous oxygen enters on the cathode (+) side of the PEM fuel cell.
Academic text (2010) -
As the electrons and protons reunite at the cathode side of the fuel cell, they combine with the oxygen that has been introduced on the cathode side to form clean, potable water.
Academic text (2010) -
The hydrogen protons are able to diffuse through the polymer-based electrolyte, which is sandwiched between the anode and cathode, but the hydrogen electrons cannot.
Academic text (2010) -
With the help of the catalyst on the cathode side, two hydrogen protons meet up with an introduced oxygen atom and two free electrons from the electrode where they combine to make a molecule of water, or H2O.
Academic text (2010) -
The current flows out from the cathode of the battery into the circuit.
-
In a typical battery setup, the cathode is where the reduction reaction takes place.
Synonyms
A battery terminal marked with a plus sign that connects to the red wire
Antonyms
- Specialized
2
5.5
The part in a battery where electric current enters or leaves, usually the positive terminal
Compounds
- Specialized
2
7.0
A stream of electrons in a vacuum tube that makes images on old television screens or similar devices
- Archaic
1
6.0
A large glass device in old TVs and computer screens that makes pictures with a beam of electrons
- Archaic
An electronic device that shows changing electrical signals as lines on a screen using a tube
- Specialized
A part inside some lamps and electronic devices that gives out electrons without being heated
Surface Forms
Etymology
Cathode comes from the Greek parts kata- 'down' and hodos 'way'. In a battery that 'down way' became the name for the terminal that sends current into the outside circuit, so cathode is the terminal from which electric current flows into a circuit.