Battery Management Apparatus and Method
US-2024044995-A1 · Feb 8, 2024 · US
Hydrogen storage alloy for alkaline storage battery, and alkaline storage battery and alkaline storage battery system each including negative electrode having the alloy
US9105947B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105947-B2 |
| Application number | US-201113051493-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2011 |
| Priority date | Mar 18, 2010 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by La x Re y Mg 1-x-y Ni n-m-v Al m T v (Re: rare earth element(s) including Y; T: Co, Mn, Zn; 0.17≦x≦0.64, 3.5≦n≦3.8, 0.06≦m≦0.22, v≧0), and a main phase of an A 5 B 19 type crystal structure. A ratio of X/Y of the concentration ratio X of Al to Ni in a surface layer and the concentration ratio Y of Al to Ni in a bulk layer is 0.36≦X/Y≦0.85. An alkaline storage battery includes the hydrogen storage alloy in its negative electrode. An alkaline storage battery system performs partial charge and discharge control.
First claim
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What is claimed is: 1. An alkaline storage battery comprising: an electrode group including a hydrogen storage alloy negative electrode including negative electrode active material of a hydrogen storage alloy, a nickel positive electrode including positive electrode active material mainly containing nickel hydroxide, and a separator; an alkaline electrolyte; and an outer can housing the electrode group and the alkaline electrolyte, the hydrogen storage alloy including a composit…
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
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- What does patent US9105947B2 cover?
- To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a compos…
- Who is the assignee on this patent?
- Sugii Hiromasa, Ochi Makoto, Yoshida Shuuhei, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/345. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 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).