Because it was invented by Alessandro Volta.
Alessandro Volta (1745-1827) invented the voltaic cell, the first electric battery, in 1800.
The voltaic cell
A battery that produces electricity
A "Voltaic Cell"
The PP3 battery, commonly known as a 9-volt battery, is not a single voltaic cell. It consists of six smaller 1.5-volt cells connected in series to provide a total of 9 volts.
You might mean a voltaic cell, an early form of battery cell. Please see the link.
Alessandro Volta is credited with inventing the first battery in 1800. His invention, known as the Voltaic pile, was the first electrochemical cell capable of producing a steady electric current.
The negative electrode of a voltaic cell is called the anode. It is where oxidation occurs as electrons are released into the circuit.
This forms a galvanic (voltaic) cell (battery).
Sunlight hitting a photo-voltaic cell, often charging a small battery.
A Galvanic cell, or Voltaic cell, named after Luigi Galvani, or Alessandro Volta respectively, is an electrochemical cell that derives electrical energy from spontaneous redox reaction taking place within the cell. It generally consists of two different metals connected by a salt bridge, or individual half-cells separated by a porous membrane.Volta was the inventor of the voltaic pile, the first electrical battery. In common usage, the word "battery" has come to include a single Galvanic cell, but a battery properly consists of multiple
The other name of voltaic cell is galvanic cell