RE-Fe-B SERIES HYDROGEN STORAGE ALLOY AND USE THEREOF

Title:

RE-Fe-B SERIES HYDROGEN STORAGE ALLOY AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2010/057367

Kind Code:

A1

Abstract:

A rare earth-iron-boron series hydrogen storage alloy is expressed by formulae: RE19Fe68 B68, RE17Fe76B7, RE15Fe77B8, RE8Fe86B6, RE8Fe27B24, RE8Fe28B24, RE5Fe18B18, RE5Fe2B6, RE2Fe23B3, RE2FeB3 or RE2Fe14B. RE is at least one rare earth element selected from La, Ce, Pr, Nd and so on; RE can be completely or partially substituted with Mg, Ca, Zr, Ti, V; Fe can be completely or partially substituted with Ni, Mn, Al, Co, Cu, Zr, Ti, V, Zn, Cr, W, Ga, Sn, Pb; B can be completely or partially substituted with Fe, Ni, Mn, Al, Co, Cu, Zr, Ti, V, Zn, Cr, W, Ga, Sn, Pb, Si, S, C, P. The hydrogen storage alloy has above 1.0 wt% hydrogen absorbing weight and 300 mAh/g electrochemical capacity.

Inventors:

YAN HUIZHONG (CN)
KONG FANQING (CN)
XIONG WEI (CN)
LI BAOQUAN (CN)
LI JIN (CN)

Application Number:

PCT/CN2009/001301

Publication Date:

May 27, 2010

Filing Date:

November 23, 2009

Export Citation:

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Assignee:

BAOTOU RES INST OF RARE EARTHS (CN)
NAT ENGINEERING RES CT OF RARE (CN)
YAN HUIZHONG (CN)
KONG FANQING (CN)
XIONG WEI (CN)
LI BAOQUAN (CN)
LI JIN (CN)

International Classes:

C22C19/00; C22C30/00; C22C38/00; H01M4/38; C22C1/02

Foreign References:

US5290509A	1994-03-01
JPH0997608A	1997-04-08
US5753386A	1998-05-19
JP2008084733A	2008-04-10
JP2008071687A	2008-03-27
JP2000265228A	2000-09-26
CN101407883A	2009-04-15
CN101417786A	2009-04-29

Attorney, Agent or Firm:

CCPIT PATENT AND TRADEMARK LAW OFFICE (Vantone New World Plaza2 Fuchengmenwai Street, Beijing 7, CN)

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