Definition
The branch of chemistry concerned with the relationship between electrical energy and chemical change. It covers how chemical reactions can produce electricity (as in a battery) and how electrical current can cause chemical reactions (as in plating or charging a battery).
Plain English
The study of how chemicals and electricity interact -- how some chemical reactions make electricity, and how electricity can make chemical reactions happen.
Context Anchor
Seen in aircraft battery, corrosion, and electrical-system maintenance discussions.
Derivation
From 'electro-' (relating to electricity) and 'chemistry' (the study of substances and their reactions). The combined word simply names the field where the two overlap.
Why Pilots Care
Aircraft batteries depend on controlled electrochemical reactions; understanding them helps prevent sudden power loss and unexpected corrosion damage.
Grounding Statement
Inside a battery, chemicals react and create a flow of electricity that can help start the engine or power aircraft equipment.
Intuition Check
Electrochemistry is not just general electrical work. It specifically means electricity and chemical reactions affecting each other.
Example Sentence 1
The aircraft battery works on electrochemistry -- chemical reactions inside the cells produce the electrical current that starts the engine.
Example Sentence 2
Understanding electrochemistry helps explain why dissimilar metals on an airframe can corrode when moisture is present.