Title:
HYDROGEN STORAGE ALLOY, AND ANODE AND BATTERY
Document Type and Number:
Japanese Patent JP2016125068
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To maintain life property of an anode containing an Mm-containing CaCutype hydrogen storage alloy as an active material and furthermore to suppress the raw material cost of the Mm-containing CaCutype hydrogen storage alloy.SOLUTION: The hydrogen storage alloy related to the present invention is an AB5 type hydrogen storage alloy having a basal phase of a CaCutype crystal structure. The basal phase is represented by MmNiMnAlCo(in the formula, Mm is a misch metal and 4.90≤a+b+c+d≤5.40, 3.45≤a≤4.40 and 0.15≤d≤0.80). La and Ce occupy percentage in the range of 90 mass% to 100 mass% to the Mm total mass in Mn at an A site. In the hydrogen storage alloy, crystallite size obtained by an X-ray diffraction measurement by a Lorentzian method is in the range of over 466Å and 1954Å or less and strain obtained by the Lorentzian method is 0.18% or less.SELECTED DRAWING: None
Inventors:
KOBAYASHI KOJI
FURUKAWA SATORU
FURUKAWA SATORU
Application Number:
JP2014264377A
Publication Date:
July 11, 2016
Filing Date:
December 26, 2014
Export Citation:
Assignee:
CHUO DENKI KOGYO CO LTD
International Classes:
C22C19/00; H01M4/38
Domestic Patent References:
| JP2009138241A | 2009-06-25 |
Attorney, Agent or Firm:
Hiroharu Kitahara
Yuji Tada
Satoshi Yamauchi
Seiko Ito
Yuji Tada
Satoshi Yamauchi
Seiko Ito
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