It's time for zinc to swim

摘要

Whilst the term'galvanising'is a plain misnomerfor dipped zinc coatings,it does hint at the heritage of zinc as the first recorded metallic electrochemical battery,invented by Volta in 1800.There is some evidence that this invention was inspired by Galvani,who discovered that using iron and bronze tools simultaneously caused twitching in a dead frog undergoing dissection.These primary batteries of Volta were stacks of intermittent zinc and copper plates,interleaved with cloth soaked in alkaline solution called'Pila'.Whilst they were not rechargeable,they did show the principle of electricity generation from metallic electrodes in an electrolyte.