 John Frederic Daniell

John Frederic Daniell (1790–1845) was an English chemist and inventor best known for his contributions to the field of electrochemistry. He is most famous for developing the Daniell cell in 1836, which was an early type of electrochemical cell that used a copper sulfate solution and a zinc electrode. The Daniell cell improved upon previous galvanic cells by providing a more stable and reliable source of electric current.