primary cell
Definition
- Noun:
- An electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged: A "primary cell" is a type of battery designed for single use. It produces electrical energy through a chemical reaction that is not easily reversible. Once the chemical reactants are depleted, the cell cannot be practically recharged and must be replaced.
Usage Examples
- Noun:
- The remote control requires two AA primary cells.
- Primary cells, such as alkaline batteries, are common in household devices.
- Unlike a car battery, a primary cell is disposable after use.
Advanced Usage
- Technical Context: In engineering, a "primary cell" is contrasted with a secondary (rechargeable) cell. Its design prioritizes energy density and shelf life over cycle life.
- The sensor's long-term deployment relied on a high-capacity primary cell.
- Historical Context: The term often refers to early non-rechargeable battery designs.
- The Daniell cell was a historically important primary cell.
Variants and Related Words
- Primary Battery (n): A battery consisting of one or more primary cells connected together.
- The flashlight uses a 6-volt primary battery.
- Galvanic Cell (n): A broader electrochemical term that includes primary cells as a subset where chemical energy is converted to electrical energy.
- Dry Cell (n): A common type of primary cell where the electrolyte is contained in a low-moisture paste.
- Most consumer primary cells are of the dry cell variety.
Synonyms
- Disposable battery: A common synonym emphasizing its single-use nature.
- Non-rechargeable battery: A descriptive synonym highlighting its key functional difference.
Related Phrases
- To be powered by primary cells: Describes a device that uses this type of battery.
- The emergency transmitter is powered by primary cells for reliability.
- Primary cell chemistry: Refers to the specific chemical system used (e.g., zinc-carbon, alkaline, lithium).
- The device's performance depends heavily on its primary cell chemistry.
Notes on Meaning
- The core meaning is defined by irreversibility. A "primary cell" is fundamentally a one-time conversion device.
- It is a single, complete electrochemical unit. Multiple primary cells can be combined to form a primary battery.
Noun
-
an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged
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