electrode
Let an agent explain electrodes and their kinds, relay electrochemical principles, materials and applications from chemistry and engineering references, describe reference and indicator electrodes, and distinguish electrodes from terminals, wires and electrolytes.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain electrodes and their kinds, relay electrochemical principles, materials and applications from chemistry and engineering references, describe reference and indicator electrodes, and distinguish electrodes from terminals, wires and electrolytes.
An electrical conductor through which current enters or leaves a medium such as an electrolyte, a gas, a semiconductor or living tissue, including the positive and negative electrodes of cells and batteries, inert electrodes such as platinum and graphite or carbon electrodes, reference electrodes such as the standard hydrogen electrode, indicator electrodes in analytical chemistry, and electrodes in welding, electronics and medicine; electrodes are central to electrochemistry and many technologies.
What it is for: Passing current into or out of a medium.
It can be explain kinds and principles; relay materials and applications; describe reference electrodes; distinguish related components.
Distinguishing features
Interface conductor
Anode and cathode roles
Many materials
Reference standards
What it looks like
A metal, carbon or coated conductor in contact with a medium.
Physical character
standard hydrogen electrode potential: 0 V - by definition
common materials: platinum, graphite, copper, lithium compounds list
anode and cathode: defined by current direction, not polarity note
How it is recognised
Conductor at the interface with a medium
Positive and negative electrodes, inert electrodes, graphite and carbon electrodes, hydrogen electrode, indicator electrode
Terminals connect wires; wires carry current; electrolytes conduct ions
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is used in - as anode and cathode
is exemplified by - the reference
In practice
Families and kinds
battery and cell electrodes, positive and negative
inert electrodes such as platinum and graphite
reference electrodes such as the hydrogen and silver chloride electrodes
indicator and ion-selective electrodes
welding and arc electrodes
biomedical electrodes such as ECG and neural electrodes
Standards and regulation
IUPAC electrochemistry conventions
Welding electrode standards such as AWS and ISO
Medical device standards for biomedical electrodes
Failure modes and hazards
Confusing anode and cathode with polarity
Electrode fouling and corrosion
Registry aliases naming roles and materials
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What an electrode is.
Science.
Definition
Definition.
Definition
Definition.
- What is an electrode, and how does it differ from a terminal, a wire and an electrolyte? definition
- Is the question about electrochemistry, batteries, welding, medicine or electronics? boundary
Kinds
Kinds.
Kinds
Kinds.
- What are positive and negative, inert, graphite, hydrogen and indicator electrodes? definition
- Which entry fits the specific kind? action
Electrochemistry Principles.
Science.
Potentials
Potentials.
Potentials
Potentials.
- How do electrode potentials arise, and how is the standard hydrogen electrode used as reference? provenance
- Which references are standard? provenance
Roles
Anode and cathode.
Roles
Roles.
- How are anode and cathode defined, and why does polarity differ between cells and electrolysis? provenance
- Which sources are cited? provenance
Applications Applications.
Application.
Batteries
Batteries and fuel cells.
Batteries
Batteries.
- What electrode materials are used in lithium-ion, lead-acid and fuel cells? provenance
- Which entry fits lithium-ion battery? action
Other
Welding, analysis and medicine.
Other
Other.
- How are electrodes used in welding, analytical chemistry and biomedical sensing? provenance
- Which entry fits the specific application? action
Context History and materials.
Context.
History
History.
History
History.
- How did Faraday coin the term electrode, and how did electrode science develop? provenance
- Which entry fits the history of electrochemistry? action
Materials
Materials research.
Materials
Materials.
- What research addresses new electrode materials and nanostructures? provenance
- Which entry fits electrode materials? action
What the second pass must settle
- Should reference electrode and battery electrode be separate primary entries?
- How should electrochemistry references be linked?
- The registry entry has merged aliases naming roles, materials and reference types; should they be split off?