Title:
PROCESS FOR PRODUCTION OF (RARE EARTH)-Mg-Ni-BASED HYDROGEN STORAGE ALLOY
Document Type and Number:
WIPO Patent Application WO/2011/162385
Kind Code:
A1
Abstract:
Disclosed is a process for producing a (rare earth)-Mg-Ni-based hydrogen storage alloy that enables the production of a nickel hydrogen secondary battery having excellent cycle properties and high capacity, in a safe and industrially advantageous manner. Specifically disclosed is a process for producing a (rare earth)-Mg-Ni-based hydrogen storage alloy that contains an element (A), Mg and an element (B), wherein the element (A) comprises at least one element (R) selected from rare earth elements including Sc and Y and at least one arbitral element selected from Zr, Hf and Ca, the element (B) comprises Ni and at least one arbitral element other than the element (A) or Mg. The process comprises: a first step of mixing an alloy comprising the element (A) and the element (B) with metal Mg and/or an Mg-containing alloy having a melting point equal to or lower than that of metal Mg to produce a mixture; and a second step of heating the mixture at a temperature that is lower by 5 to 250˚C than the melting point of the finished (rare earth)-Mg-Ni-based hydrogen storage alloy for 0.5 to 240 hours.
Inventors:
OTSUKI Takayuki (14-34 Fukae-Kitamachi 4-chome, Higashinada-ku, Kobe-sh, Hyogo 13, 〒6580013, JP)
大月 孝之 (〒13 兵庫県神戸市東灘区深江北町４丁目１４番３４号 株式会社三徳内 Hyogo, 〒6580013, JP)
大月 孝之 (〒13 兵庫県神戸市東灘区深江北町４丁目１４番３４号 株式会社三徳内 Hyogo, 〒6580013, JP)
Application Number:
JP2011/064558
Publication Date:
December 29, 2011
Filing Date:
June 24, 2011
Export Citation:
Assignee:
SANTOKU CORPORATION (14-34, Fukae-Kitamachi 4-chome Higashinada-ku, Kobe-sh, Hyogo 13, 〒6580013, JP)
株式会社三徳 (〒13 兵庫県神戸市東灘区深江北町４丁目１４番３４号 Hyogo, 〒6580013, JP)
OTSUKI Takayuki (14-34 Fukae-Kitamachi 4-chome, Higashinada-ku, Kobe-sh, Hyogo 13, 〒6580013, JP)
株式会社三徳 (〒13 兵庫県神戸市東灘区深江北町４丁目１４番３４号 Hyogo, 〒6580013, JP)
OTSUKI Takayuki (14-34 Fukae-Kitamachi 4-chome, Higashinada-ku, Kobe-sh, Hyogo 13, 〒6580013, JP)
International Classes:
B22F1/00; C22C1/00; C22C19/00; H01M4/38
Attorney, Agent or Firm:
SAKAI Hajime et al. (Nihon Jitensha Kaikan, 9-15 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)
Download PDF:
Claims:
Previous Patent: SOLAR CELL MODULE AND METHOD FOR PRODUCING SAME
Next Patent: POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE
Next Patent: POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE