Electrode Materials For Rechargeable Zinc Cells and Batteries Produced Therefrom

A zinc ion battery, comprising:

• a positive electrode compartment having enclosed therein and intercalated layered positive electrode material MxV3O7.nH2O, wherein x is in a range from 0.05 to 1, n is greater than 0 and less than 2, wherein M is any one or combination of a d-block metal ion, f-block metal ion and alkaline earth ion, the metal M ion being in a +2 to +4 valence state, and wherein said V3O7 is a layered crystal structure having the metal ions M pillared between the layers, and waters of hydration coordinated to the metal ions M and/or hydrogen bonded to the layers;
• a negative electrode compartment having enclosed therein a negative electrode for storing zinc;
• a separator electrically insulating and permeable to zinc ions separating the positive and negative compartments;
• and
• an electrolyte comprising water and having a salt of zinc dissolved therein.

A zinc ion battery;

• comprising:
• a positive electrode compartment having enclosed therein an intercalated layered positive electrode material MxMoOy.nH2O, wherein x is in a range from 0 to 1, y is in a range from 2 to 3, n is in a range from 0 to 2, wherein M is any one or combination of a d-block metal ion, f-block metal ion and alkaline earth ion, the metal M ion being in a +2 to +4 valence state, and wherein said MoOy has a layer or tunnel crystal structure, and the metal ions M, if present, pillared between the layers, and waters of hydration coordinated to the metal ions M pillared between the layers;
• a negative electrode compartment having enclosed therein a negative electrode for storing zinc;
• a separator electrically insulating and permeable to zinc ions separating the positive and negative compartments;
• and
• an electrolyte comprising water and having a salt of zinc dissolved therein.