Patent ID: 6471795
Filing Date: 2002-10-29
Classification: C22C,H01M,Y02E

Abstract:
A method of producing hydrogen storage alloy expressed with a formula of TiaMnbVcZrdAeBfCgNih, and having a crystal structure comprising a hexagonal close-packed structure, comprising the steps of:rapidly solidifying a molten raw material for obtaining the hydrogen storage alloy, wherein a cooling rate for rapid solidification is greater than 102Â° C./sec, wherein a is 10 to 40 atomic %, b is 40 to 60 atomic %, c is 5 to 30 atomic %, d is 15 atomic % or less, e, f, g, and h are such that e+f+g+h are 0 to 10 atomic %, A: one or two kinds of Fe and Co B: one or two kinds or more of Cu, Zn and Ca, and C: one or two kinds of Al and Mo.