Primary alkaline battery

Patent metadata

Field	Value
Publication number	US-11876221-B2
Application number	US-202017087289-A
Country	US
Kind code	B2
Filing date	Nov 2, 2020
Priority date	Mar 12, 2010
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

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 oxidizing an oxide including at least one transition metal and an alkali metal to increase the average oxidation state of the transition metal, wherein the transition metal comprises nickel and/or cobalt;
incorporating the cathode material and a further cathode material comprising electrolytic manganese dioxide, chemically-prepared manganese dioxide, acid-treated electrolytic manganese dioxide, acid-treated chemically-prepared manganese dioxide, or a combination 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 transition metal comprises nickel.

5. The method of claim 1 , wherein the alkali metal comprises lithium.

6. The method of claim 1 , wherein preparing the cathode material further comprises washing with water.

7. The method of claim 1 , wherein the transition metal comprises nickel and the alkali metal comprises lithium.

8. The method of claim 1 , wherein the increase in the average oxidation state of the transition metal is in the range of at least about 0.1 to about 0.5.

9. The method of claim 1 , wherein the increase in the average oxidation state of the transition metal is at least about 0.5.

10. A method of making a primary alkaline battery comprising:
preparing a cathode material by a process comprising oxidatively delithiating a lithium nickelate;
incorporating the cathode material and a further cathode material comprising electrolytic manganese dioxide, chemically-prepared manganese dioxide, acid-treated electrolytic manganese dioxide, acid-treated chemically-prepared manganese dioxide, or a combination 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.

11. The method of claim 10 , wherein the anode includes zinc or a zinc alloy.

12. The method of claim 10 , wherein the battery includes a separator between the cathode and the anode.

13. The method of claim 10 , wherein the lithium nickelate has a layered structure.

14. The method of claim 10 , wherein preparing the cathode material further comprises washing with water.

15. The method of claim 10 , wherein the increase in the average oxidation state of the transition metal is in the range of at least about 0.1 to about 0.5.

16. The method of claim 10 , wherein the increase in the average oxidation state of the transition metal is at least about 0.5.

Assignees

• Duracell Us Operations Inc

Inventors

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

Classifications

• H01M4/505 Primary

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title

• B26B21/14

  Safety razors with one or more blades arranged transversely to the handle · CPC title

• B26B21/222

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

• B26B21/225

  the changeable unit being resiliently mounted on the handle · CPC title

• B26B21/4012

  Housing details, e.g. for cartridges · CPC title