Nickel-hydrogen storage battery
US-9525169-B2 · Dec 20, 2016 · US
Hydrogen absorbing alloy negative electrode and nickel-hydrogen secondary battery including the hydrogen absorbing alloy negative electrode
US12482806B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12482806-B2 |
| Application number | US-202217744647-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 14, 2022 |
| Priority date | May 28, 2021 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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Abstract
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A hydrogen absorbing alloy negative electrode is provided. The hydrogen absorbing alloy negative electrode has a hydrogen absorbing alloy, and an additive including yttrium fluoride. A mass of the yttrium fluoride is 0.1 parts by mass or more and 0.2 parts by mass or less based on a hydrogen absorbing alloy powder of 100 parts by mass.
First claim
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What is claimed is: 1 . A hydrogen absorbing alloy negative electrode comprising: a hydrogen absorbing alloy; and an additive including yttrium fluoride, wherein a mass of the yttrium fluoride is 0.1 parts by mass or more and 0.2 parts by mass or less based on a hydrogen absorbing alloy powder of 100 parts by mass; and wherein the additive further includes calcium fluoride, and a mass of the calcium fluoride is up to 0.5 parts by mass based on the hydrogen absorbing alloy powder of 100 parts by mass. 2 . A nickel-hydrogen secondary battery comprising: the hydrogen absorbing alloy negative electrode according to claim 1 ; and a positive electrode comprising nickel hydroxide and facing the hydrogen absorbing alloy negative electrode with a separator interposed therebetween, wherein the hydrogen absorbing alloy negative electrode and the positive electrode are housed in an outer can together with an electrolyte solution.
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Alkaline electrolytes · CPC title
Batteries in portable systems, e.g. mobile phone, laptop · CPC title
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
Positive electrodes · CPC title
Negative electrodes · CPC title
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- What does patent US12482806B2 cover?
- A hydrogen absorbing alloy negative electrode is provided. The hydrogen absorbing alloy negative electrode has a hydrogen absorbing alloy, and an additive including yttrium fluoride. A mass of the yttrium fluoride is 0.1 parts by mass or more and 0.2 parts by mass or less based on a hydrogen absorbing alloy powder of 100 parts by mass.
- Who is the assignee on this patent?
- Fdk Corp
- 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 Tue Nov 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).