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1. (WO2013118806) HYDROGEN ABSORPTION ALLOY POWDER, NEGATIVE ELECTRODE, AND NICKEL-HYDROGEN SECONDARY CELL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/118806 International Application No.: PCT/JP2013/052826
Publication Date: 15.08.2013 International Filing Date: 07.02.2013
IPC:
C22C 19/00 (2006.01) ,B22F 1/00 (2006.01) ,B22F 5/00 (2006.01) ,H01M 4/38 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
19
Alloys based on nickel or cobalt
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1
Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
5
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
38
of elements or alloys
Applicants:
株式会社三徳 SANTOKU CORPORATION [JP/JP]; 兵庫県神戸市東灘区深江北町4丁目14番34号 14-34, Fukae-Kitamachi 4-chome, Higashinada-ku, Kobe-shi, Hyogo 6580013, JP
Inventors:
大月 孝之 OTSUKI Takayuki; JP
太田 晶康 OTA Akiyasu; JP
柳 泰成 YANAGI Yasunori; JP
Agent:
酒井 一 SAKAI Hajime; 東京都中央区築地一丁目12番22号 コンワビル内 Konwa Bldg. 12-22, Tsukiji 1-chome, Chuo-ku, Tokyo 1040045, JP
Priority Data:
2012-02589609.02.2012JP
Title (EN) HYDROGEN ABSORPTION ALLOY POWDER, NEGATIVE ELECTRODE, AND NICKEL-HYDROGEN SECONDARY CELL
(FR) POUDRE D'ALLIAGE D'ABSORPTION D'HYDROGÈNE, ÉLECTRODE NÉGATIVE ET CELLULE SECONDAIRE NICKEL-HYDROGÈNE
(JA) 水素吸蔵合金粉末、負極およびニッケル水素二次電池
Abstract:
(EN) Provided are a hydrogen absorption alloy powder, a negative electrode, and a nickel-hydrogen secondary cell, capable of simultaneously possessing excellent initial activity and cycle properties as well as low temperature properties, which are trade-offs in a nickel-hydrogen secondary cell. The alloy powder is characterized in having a composition expressed by the formula R1-aMgaNibAlcMd (where R includes rare earth elements and similar, including Sc and Y; 0.005≤a≤0.40; 3.00≤b≤4.50; 0≤c≤0.50; 0≤d≤1.00; and 3.00≤b+c+d≤4.50), the arithmetic average roughness (Ra) of the outer surface of the powder being at least 2 µm and the crushing strength of the powder being no more than 35,000 gf/mm2.
(FR) La présente invention se rapporte à une poudre d'alliage d'absorption d'hydrogène, à une électrode négative et à une cellule secondaire nickel-hydrogène capable de posséder simultanément une activité initiale et des propriétés de cycle excellentes ainsi que des propriétés à basse température, compromises dans une cellule secondaire nickel-hydrogène. La poudre d'alliage est caractérisée par une composition exprimée par la formule R1-aMgaNibAlcMd (où R comprend des éléments de terres rares et similaires, comprenant Sc et Y ; 0,005 ≤ a ≤ 0,40 ; 3,00 ≤ b ≤ 4,50 ; 0 ≤ c ≤ 0,50, 0 ≤ d ≤ 1,00 ; et 3,00 ≤ b + c + d ≤ 4,50), la rugosité moyenne arithmétique (Ra) de la surface extérieure de la poudre étant au moins de 2 µm et la résistance à l' écrasement de la poudre n'étant pas supérieure à 35 000 gf / mm2.
(JA)  ニッケル水素二次電池においてトレードオフの関係にある初期活性およびサイクル特性、低温特性を同時に優れたものとすることができる水素吸蔵合金粉末、負極及びニッケル水素二次電池を提供する。本発明の合金粉末は、式(1) R1-aMgaNibAlcd(R:Sc、Yを含む希土類元素等を含む。0.005≦a≦0.40、3.00≦b≦4.50、0≦c≦0.50、0≦d≦1.00、3.00≦b+c+d≦4.50。)で表される組成を有し、該粉末外表面の算術平均粗さ(Ra)が2μm以上、または該粉末の圧壊強度が35,000gf/mm2 以下であることを特徴とする。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)