Methods of making metal-doped nickel oxide active materials

Patent metadata

Field	Value
Publication number	US-9543576-B2
Application number	US-201514636583-A
Country	US
Kind code	B2
Filing date	Mar 3, 2015
Priority date	Mar 21, 2012
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.

First claim

What is claimed is:

1. A method of making a battery, comprising incorporating a cathode including as the cathode active material a lithium-deficient doped nickel(IV)-containing oxide having a formula A x Ni 1-y-z-w Co y M a z M b w O 2 wherein A comprises lithium, M a is selected from the group consisting of Ca, Mg, Al, Y, Mn, and any combination thereof; and M b is selected from the group consisting of B, Si, Ge, and any combination thereof; 0≦x≦0.08; 0≦w≦0.02; and 0.02≦y+z≦0.25 prepared by acid treatment of a LiNi 1-y-z-w , Co y M a z M b w O 2 precursor having a layered or spinel-type crystal structure into the battery wherein 0≦w≦0.02; 0≦y≦0.02; 0.02≦z≦0.08; M a is selected from the group consisting of Ca, Mg, Al, Y, Mn, and any combination thereof; and M b is selected from the group consisting of B, Si, Ge, and any combination thereof.

2. The method of claim 1 , further comprising incorporating an anode including zinc or zinc alloy particles, an alkaline electrolyte solution, and a separator into the battery.

3. The method of claim 1 , wherein the cathode further includes an oxidation-resistant, electrically-conductive carbon additive.

4. The method of claim 1 , wherein the oxidation-resistant, electrically-conductive carbon additive is selected from synthetic, non-expanded oxidation-resistant graphite, graphitized carbon black, vapor phase grown carbon fibers, and carbon nanofibers.

5. The method of claim 1 , wherein the carbon additive is included in the cathode at a level of between 3% and 20% of the total cathode weight.

6. The method of claim 1 , wherein the carbon additive is included in the cathode at a level of between 3% and 10% of the total cathode weight.

Assignees

• Duracell Us Operations Inc

Inventors

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

Classifications

• H01M4/625

  Carbon or graphite · CPC title

• C01G53/66

  containing alkaline earth metals, e.g. SrNiO3 or SrNiO2 · CPC title

• C01P2006/12

  Surface area · CPC title

• H01M4/26

  Processes of manufacture · CPC title

• C01P2004/03

  obtained by SEM · CPC title