Primary alkaline battery

Patent metadata

Field	Value
Publication number	US-10826062-B2
Application number	US-201916357245-A
Country	US
Kind code	B2
Filing date	Mar 18, 2019
Priority date	Mar 12, 2010
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Duracell Us Operations Inc

Inventors

• Christian Paul Albert
• Wang Yichun
• Iltchev Nikolay Krastev
• Nanjundaswamy Kirakodu S
• Nelson Jennifer Anne
• Zhang Fan

Classifications

• H01M4/362

  Composites · CPC title

• H01M6/04

  Cells with aqueous electrolyte · CPC title

• H01M4/42

  Alloys based on zinc · CPC title

• B26B21/222

  with the blades moulded into, or attached to, a changeable unit (B26B21/4006 takes precedence) · CPC title

• Y10T29/49108

  Electric battery cell making · CPC title