JP2006037122A5 - - Google Patents
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- JP2006037122A5 JP2006037122A5 JP2004214376A JP2004214376A JP2006037122A5 JP 2006037122 A5 JP2006037122 A5 JP 2006037122A5 JP 2004214376 A JP2004214376 A JP 2004214376A JP 2004214376 A JP2004214376 A JP 2004214376A JP 2006037122 A5 JP2006037122 A5 JP 2006037122A5
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- metal hydride
- hydrogen storage
- storage battery
- nickel
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本発明は、水素吸蔵合金およびニッケル水素蓄電池を以下の構成とすることによって前記課題を解決する。
本発明に係るニッケル水素蓄電池は、記号Ａが希土類元素であり、記号ＢがＭｇとＣａから選ばれる１種または２種の元素であり、記号ＣがＣｏ、Ｍｎ、Ａｌ、ＦｅおよびＣｕから選ばれる１種以上の元素であり、化学式ＡwＢxＮｉyＣzにおいて、ｗ＋ｘ＝１、０．０４≦ｘ≦０．１７、３．５≦ｙ≦４．３、４．０≦ｙ＋ｚ≦４．７、０≦ｚ、４．７５≦（ｘ＋ｙ＋ｚ）／ｗ≦５．３５で表される水素吸蔵合金を用いた水素吸蔵電極を備えたニッケル水素蓄電池である。
本発明に係るニッケル水素蓄電池の水素吸蔵電極は、水素吸蔵合金の粉末とセリウム（Ｃｅ）、デイスプロシウム（Ｄｙ）、ホルミウム（Ｈｏ）、エルビウム（Ｅｒ）、ツリウム（Ｔｍ）、イッテルビウム（Ｙｂ）、ルテチウム（Ｒｕ）およびイットリウム（Ｙ）から選ばれた少なくとも１種の希土類元素の水酸化物と酸化物の少なくとも１種を導電性基板に担持させたものであることが好ましい。
This invention solves the said subject by setting a hydrogen storage alloy and a nickel metal hydride storage battery as the following structures.
In the nickel metal hydride storage battery according to the present invention, the symbol A is a rare earth element, the symbol B is one or two elements selected from Mg and Ca, and the symbol C is selected from Co, Mn, Al, Fe, and Cu. In the chemical formula AwBxNiyCz, w + x = 1, 0.04 ≦ x ≦ 0.17, 3.5 ≦ y ≦ 4.3, 4.0 ≦ y + z ≦ 4.7, 0 ≦ z It is a nickel metal hydride storage battery provided with a hydrogen storage electrode using a hydrogen storage alloy represented by 4.75 ≦ (x + y + z) /w≦5.35 .
The hydrogen storage electrode of the nickel metal hydride storage battery according to the present invention includes a hydrogen storage alloy powder and cerium (Ce), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb). It is preferable that at least one kind of hydroxide and oxide of rare earth elements selected from lutetium (Ru) and yttrium (Y) are supported on a conductive substrate .
本発明によれば、従来のニッケル水素蓄電池に比べて放電容量が大きく、且つ、サイクル性能が従来のニッケル水素蓄電池と同等かまたは上回るニッケル水素蓄電池を得ることができる。 According to the onset bright, large discharge capacity as compared to conventional nickel-metal hydride storage battery, and can cycle performance obtain conventional nickel-metal hydride storage battery equal to or greater than the nickel-metal hydride storage battery.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004214376A JP4540045B2 (en) | 2004-07-22 | 2004-07-22 | Hydrogen storage alloy, hydrogen storage electrode and nickel metal hydride storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004214376A JP4540045B2 (en) | 2004-07-22 | 2004-07-22 | Hydrogen storage alloy, hydrogen storage electrode and nickel metal hydride storage battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006037122A JP2006037122A (en) | 2006-02-09 |
| JP2006037122A5 true JP2006037122A5 (en) | 2007-08-23 |
| JP4540045B2 JP4540045B2 (en) | 2010-09-08 |
Family
ID=35902432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004214376A Active JP4540045B2 (en) | 2004-07-22 | 2004-07-22 | Hydrogen storage alloy, hydrogen storage electrode and nickel metal hydride storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4540045B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5534459B2 (en) * | 2009-01-21 | 2014-07-02 | 株式会社Ｇｓユアサ | Hydrogen storage alloy and nickel metal hydride storage battery |
| JP5532390B2 (en) * | 2009-08-24 | 2014-06-25 | 株式会社Ｇｓユアサ | Nickel metal hydride storage battery |
| US9997776B2 (en) | 2013-03-29 | 2018-06-12 | Panasonic Intellectual Property Management Co., Ltd. | Alloy powder for electrodes, negative electrode for nickel-metal hydride storage batteries including the same, and nickel-metal hydride storage battery including the same |
| JPWO2016157669A1 (en) * | 2015-03-31 | 2017-10-12 | パナソニックＩｐマネジメント株式会社 | Alloy powder for electrode, negative electrode for nickel metal hydride storage battery and nickel metal hydride storage battery using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001325957A (en) * | 2000-05-16 | 2001-11-22 | Toshiba Battery Co Ltd | Alkaline secondary cell |
| JP4965761B2 (en) * | 2000-09-29 | 2012-07-04 | 株式会社東芝 | Hydrogen storage alloy and method for producing the same, and nickel-hydrogen secondary battery using the same |
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2004
- 2004-07-22 JP JP2004214376A patent/JP4540045B2/en active Active
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