lithium ion

For example, Li⁺ is called lithium in the names of compounds containing this ion. Similarly, Na⁺ is called sodium, Mg²⁺ is called magnesium, and so on. A simple anion (obtained from a single atom) is named by taking the root of the parent element’s name and adding the suffix -ide.…

… for his work in developing lithium-ion batteries. He shared the prize with American chemist John Goodenough and Japanese chemist Yoshino Akira.