Primary alkaline battery
A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
1. A method of making a primary alkaline battery comprising:
preparing a cathode material by a process comprising treating LiNiO 2 with acid;
incorporating the cathode material and a further cathode material selected from the group consisting of electrolytic manganese dioxide, chemically-prepared manganese dioxide, acid-treated electrolytic manganese dioxide, acid-treated chemically-prepared manganese dioxide, and combinations thereof into a cathode;
incorporating the cathode into the battery;
incorporating an anode into the battery; and
incorporating an aqueous alkaline electrolyte into the battery.
2. The method of claim 1 , wherein the anode includes zinc or a zinc alloy.
3. The method of claim 1 , wherein the battery includes a separator between the cathode and the anode.
4. The method of claim 1 , wherein the acid is aqueous sulfuric acid.
5. The method of claim 1 , wherein the acid is aqueous nitric acid.
6. The method of claim 1 , wherein the concentration of the acid is between 1 M and 10 M.
7. The method of claim 1 , wherein preparing the cathode material further comprises washing with water.
8. The method of claim 1 , wherein the cathode comprises Li 1-x H y NiO 2 , wherein x is greater than 0 and less than 1, and wherein y is less than or equal to x.
9. The method of claim 1 , wherein the one or more further cathode materials is electrolytic manganese dioxide.
10. A primary battery comprising:
a cathode comprising a cathode active material prepared by a process comprising treating LiNiO 2 with acid, the cathode further comprising a cathode material selected from the group consisting of electrolytic manganese dioxide, chemically-prepared manganese dioxide, acid-treated electrolytic manganese dioxide, acid-treated chemically-prepared manganese dioxide, and combinations thereof.
11. The battery of claim 10 , further comprising an anode, a separator, and an alkaline electrolyte.
12. The battery of claim 11 , wherein the anode includes zinc or a zinc alloy.
13. The battery of claim 11 , wherein the alkaline electrolyte comprises an aqueous alkali metal hydroxide solution.
14. The battery of claim 10 , wherein the cathode comprises Li 1-x H y NiO 2 , wherein x is greater than 0 and less than 1, and wherein y is less than or equal to x.
15. The battery of claim 10 , wherein the one or more further cathode materials is electrolytic manganese dioxide.