Daniell cell used and possibly made by Edward Davy, England, 1836-1839. Found in a field in Somerset by J J Fahie, an historian of the electric telegraph, in 1883. The Daniell Cell is named after John Frederic Daniell, who invented it in 1836, and is a form of electro-chemical battery. Daniell cells use copper in copper sulphate and zinc in zinc sulphate, each in a separate pot. The two are connected by a salt bridge, which allows ions to move from one pot to another, so generating an electric charge. This particular Daniell cell is believed to have been used by Edward Davy, who in 1837-8 was a rival to Cooke and Wheatstone in developing a practical electric telegraph. For personal reasons Davy emigrated to Australia in 1838 and his experimental apparatus was stored. Sadly most of it was destroyed later but a few Daniell cells were found and rescued, of which this is one.
- Object Number:
overall (diameter at base): 475 mm 220 mm, 7.18 kg
- furnishing and equipment
- tools & equipment
- Donated by the Institution of Electrical Engineers
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
View manifest in IIIF viewer
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.