21. Water is passed between an anode ( positive electrode ) and a cathode ( negative electrode ). 22. The anion is formed, together with peroxocarbonate, at the negative electrode during electrolysis of molten lithium carbonate. 23. Research carried out by CNRS developed new high-energy hybrid alloys incorporating rare earth metals for the negative electrode . 24. The peroxycarbonate anion is formed, together with peroxydicarbonate, at the negative electrode during electrolysis of molten lithium carbonate. 25. One half-cell includes electrolyte and the negative electrode , the electrode to which cations ( positively charged ions ) migrate. 26. The negative electrode is composed of a dispersion of zinc powder in a gel containing the potassium hydroxide electrolyte. 27. These features are required because the negative electrode produces heat during use, while the positive electrode may produce oxygen. 28. Later, in 1869, Johann Wilhelm Hittorf studied discharge tubes with energy rays extending from a negative electrode , the cathode. 29. Magnesium was chosen as the negative electrode for its low cost and low solubility in the molten salt electrolyte. 30. During charge, metallic zinc is plated from the electrolyte solution onto the negative electrode surfaces in the cell stacks.
