About: http://webisa.webdatacommons.org/37289730

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A material is chosen for the cathode which is able to easily supply electrons, such as e.g. copper or graphite and a metallic material is chosen for the anode, such as e.g. copper, molybdenum, tungsten or silver.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com