Storage cell system
US-2015180101-A1 · Jun 25, 2015 · US
Alkaline battery and method for manufacturing alkaline battery
US2016240855A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016240855-A1 |
| Application number | US-201514839935-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 29, 2015 |
| Priority date | Feb 16, 2015 |
| Publication date | Aug 18, 2016 |
| Grant date | — |
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Abstract
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A method for manufacturing an alkaline battery includes assembling an alkaline battery with a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes cobalt and a positive electrode active material particle, which has a main component that is nickel hydroxide. The positive electrode active material particle has a coating layer that includes cobalt oxyhydroxide. At least one of the positive electrode, the negative electrode, and the electrolyte includes a tungsten element. The method further includes charging the assembled alkaline battery so that the cobalt in the positive electrode is deposited as cobalt oxyhydroxide on a surface of the positive electrode active material particle.
First claim
Opening claim text (preview).
1 . A method for manufacturing an alkaline battery, the method comprising: assembling an alkaline battery with a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes cobalt and a positive electrode active material particle, which has a main component that is nickel hydroxide, the positive electrode active material particle has a coating layer that includes cobalt oxyhydroxide, and at least one of the positive electrode, the negative electrode, and the electrolyte includes a tungsten element; and charging the alkaline battery after the assembling so that the cobalt in the positive electrode is deposited as cobalt oxyhydroxide on a surface of the positive electrode active material particle. 2 . The method according to claim 1 , further comprising preparing the electrolyte by dissolving a tungsten compound in a solvent. 3 . The method according to claim 1 , further comprising forming the positive electrode using the positive electrode active particle, wherein the coating layer of the positive electrode active material particle includes cobalt oxyhydroxide that has a β-type crystal structure. 4 . An alkaline battery comprising: a positive electrode including a positive electrode active material particle, which has a main component that is nickel hydroxide; a negative electrode; a separator; and an electrolyte, wherein the positive electrode includes the positive electrode active material particle, which has a coating layer that includes cobalt oxyhydroxide, and cobalt oxyhydroxide derived from cobalt, which is oxidized in an initial charging, the cobalt oxyhydroxide included in the positive electrode has a peak in a (012) plane around “2θ=37° to 40°” in an X-ray diffraction using CuKα radiation, and the peak has a half-width of 0.59° or greater, and at least one of the positive electrode, the negative electrode, and the electrolyte includes a tungsten element.
Assignees
Inventors
Classifications
Nickel accumulators (H01M10/34 takes precedence) · CPC title
of nickel, cobalt or iron · CPC title
- H01M4/32Primary
Nickel oxide or hydroxide electrodes · CPC title
Positive electrodes · CPC title
Large cells or batteries with stacks of plate-like electrodes · CPC title
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- What does patent US2016240855A1 cover?
- A method for manufacturing an alkaline battery includes assembling an alkaline battery with a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes cobalt and a positive electrode active material particle, which has a main component that is nickel hydroxide. The positive electrode active material particle has a coating layer that includes cob…
- Who is the assignee on this patent?
- Primearth Ev Energy Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/32. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 18 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).