FINAL JEOPARDY
Cathode materials are generally constructed out of two general materials. One of these develops a pseudo tetrahedral structure that allows for two-dimensional lithium-ion diffusion. Guess the element.
What is Cobalt?
Lithium was once a key ingredient in this beverage.
What is 7-Up?
Before "7 Up" became its name everywhere, the soft drink, which debuted in 1929, was briefly called "Bib-Label Lithiated Lemon-Lime Soda," and its original ingredients included lithium citrate.