Electrode materials for rechargeable zinc cells and batteries produced therefrom
First Claim
1. A zinc ion battery, comprising:
- a positive electrode compartment having enclosed therein an intercalation layered positive electrode material described by the formula MxV2O5.nH2O when the positive electrode is in a fully charged state, wherein x is in a range from 0.05 to less than 1, n is in a range from greater than 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 V2O5 is a layered crystal structure having the metal ions M pillared between the layers, and waters of hydration coordinated to the metal ions M;
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.
5 Assignments
1 Petition
Accused Products
Abstract
The present disclosure discloses a rechargeable Zn battery based on layered/tunnelled structure vanadium/molybdenum oxides, with/without the presence of neutral/cationic/anionic species and/or water molecules inserted into the interlayers/tunnels, of nano/microparticle morphology as robust materials for high rate and long term reversible Zn2+ ion intercalation storage at the positive electrode, that are coupled with a metallic Zn negative electrode, and an aqueous electrolyte. The positive electrode may include electronically conducting additives and one or more binders along with the Zn2+ intercalation material: the negative electrode is Zn metal in any form; the aqueous electrolyte is of pH 1 to 9 and contains a soluble zinc salt in a concentration range from 0.01 to 10 molar.
6 Citations
16 Claims
-
1. A zinc ion battery, comprising:
-
a positive electrode compartment having enclosed therein an intercalation layered positive electrode material described by the formula MxV2O5.nH2O when the positive electrode is in a fully charged state, wherein x is in a range from 0.05 to less than 1, n is in a range from greater than 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 V2O5 is a layered crystal structure having the metal ions M pillared between the layers, and waters of hydration coordinated to the metal ions M; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification