Primary alkaline battery

Patent metadata

Field	Value
Publication number	US-2016301074-A1
Application number	US-201615136847-A
Country	US
Kind code	A1
Filing date	Apr 22, 2016
Priority date	Mar 12, 2010
Publication date	Oct 13, 2016
Grant date	—

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 cathode comprising a composite of Li 1−x H y NiO 2 and one or more cathode active materials selected from the group consisting of acid-treated electrolytic manganese dioxide, acid-treated chemically-prepared manganese dioxide, λ-MnO 2 , layered cobalt oxide, layered manganese oxide, and combinations thereof.

2 . The cathode of claim 1 , wherein the values for x and y in Li 1−x H y NiO 2 independently range from 0.1 to 0.9.

3 . The cathode of claim 1 , wherein the layered cobalt oxide is a partially delithiated layered lithium cobalt oxide.

4 . The cathode of claim 1 , wherein the layered manganese oxide is a partially delithiated layered lithium manganese oxide.

5 . The cathode of claim 1 , wherein the λ-MnO 2 is a partially delithiated spinel-type lithium manganese oxide.

6 . The cathode of claim 1 , wherein the composite comprises a Li 1−x H y NiO 2 to acid-treated electrolytic manganese oxide weight ratio of 19:1 or less, or 1:9 or more.

7 . A battery comprising the cathode of claim 1 , an anode including zinc or zinc alloy particles, an alkaline electrolyte solution, and a separator.

8 . A battery comprising the cathode of claim 1 , an anode, a separator between the cathode and the anode, and an alkaline electrolyte.

9 . The cathode of claim 1 , wherein Ni has an average oxidation state of at least 0.3 greater than the average oxidation state of Ni in LiNiO 2 .

10 . The cathode of claim 1 , wherein a Ni content of LiNiO 2 comprises at least one atomic percent of Ni having a nominally tetravalent oxidation state.

11 . The cathode of claim 1 , wherein a Ni content of LiNiO 2 comprises at most ninety atomic percent of Ni having a nominally trivalent oxidation state.

Assignees

• Duracell Us Operations Inc

Inventors

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

Classifications

• H01M4/525 Primary

  of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title

• H01M4/06

  Electrodes for primary cells · CPC title

• H01M6/04

  Cells with aqueous electrolyte · CPC title

• Y10T29/49108

  Electric battery cell making · CPC title

• H01M4/26

  Processes of manufacture · CPC title