Metal-doped nickel oxide active materials

Patent metadata

Field	Value
Publication number	US-9859558-B2
Application number	US-201615394807-A
Country	US
Kind code	B2
Filing date	Dec 30, 2016
Priority date	Mar 21, 2012
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.

First claim

What is claimed is:

1. An alkaline battery, comprising:
a cathode comprising a cathode active material comprising an oxide having a formula A x Ni 1-y-z-w Co y M a z M b w O 2 ;
an anode;
a separator between the cathode and the anode; and
an aqueous alkaline electrolyte in contact with the active material of the cathode, wherein
A is an alkali metal,
M a is a metal dopant,
M b is a non-metal dopant,
0≦x≦0.08,
0≦w≦0.02, and
0.02≦y+z≦0.25.

2. The battery of claim 1 , wherein 0.02≦y≦0.15.

3. The battery of claim 1 , wherein y is 0.

4. The battery of claim 1 , wherein 0.02≦z≦0.08.

5. The battery of claim 1 , wherein z is 0.

6. The battery of claim 1 , wherein w is 0.

7. The battery of claim 1 , wherein the alkali metal is selected from the group consisting of Li, Na, K, Cs, Rb, and any combination thereof.

8. The battery of claim 1 , wherein M a is selected from the group consisting of Ca, Mg, Al, Y, Mn, and any combination thereof.

9. The battery of claim 1 , wherein M b is selected from the group consisting of B, Si, Ge, or a combination thereof.

10. The battery of claim 1 , wherein the oxide further comprises protons.

11. The battery of claim 1 , wherein the oxide further comprises protons at a stoichiometric ratio of between 0.02 and 0.2 relative to total nickel and metal dopants.

12. The battery of claim 1 , wherein the oxide is selected from the group consisting of Li x Ni 1-y Co y O 2 , Li x Ni 1-z Ca z O 2 , Li x Ni 1-y-z Co y Ca z O 2 , Li x Ni 1-z Mg z O 2 , Li x Ni 1-y-z Co y Mg z O 2 , Li x Ni 1-z Al z O 2 , and Li x Ni 1-y-z Co y Al z O 2 , Li x Ni 1-z (Mg, Al) z O 2 , Li x Ni 1-y-z Co y (Mg, Al) z O 2 , Li x Ni 1-z Y z O 2 , Li x Ni 1-y-z Co y Y z O 2 , Li x Ni 1-z Mn z O 2 , and Li x Ni 1-y-z Co y Mn z O 2 .

13. The battery of claim 1 , wherein Ni has an average oxidation state of greater than +3.25.

14. The battery of claim 1 , wherein the anode comprises zinc or a zinc alloy.

Assignees

• Duracell Us Operations Inc

Inventors

• Nelson Jennifer Anne
• Christian Paul Albert
• Nanjundaswamy Kirakodu S
• Zhang Fan

Classifications

• H01M4/505

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

• H01M6/04

  Cells with aqueous electrolyte · CPC title

• C01P2002/52

  containing elements as dopants · CPC title

• H01M2/022

  Electricity · mapped topic

• C01G53/42

  containing alkali metals, e.g. LiNiO2 · CPC title