solar cell vs electric cell

solar cell and electric cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
solar cell	Yes	No	No	No
electric cell	Yes	No	No	No

As nouns, electric cell is a hypernym of solar cell; that is, electric cell is a word with a broader meaning than solar cell:

solar cell: a cell that converts solar energy into electrical energy
electric cell: a device that delivers an electric current as the result of a chemical reaction

Other hypernyms of solar cell include cell.

solar cell (noun)	electric cell (noun)
a cell that converts solar energy into electrical energy	a device that delivers an electric current as the result of a chemical reaction