Mg-Ni BASED HYDROGEN STORAGE ALLOY, AND ITS PRODUCTION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a Mg-Ni based hydrogen storage alloy sheet which consists of a tape- or sheet-like sintered compact combined with a good electric conductor, is easily producible, has high energy density per weight and is rapidly chargeable and dischargeable. PSOLUTION: Using Cu, a Cu alloy, Ni or an Ni alloy as a core material, an Mg-Li alloy sheet and an Ni or Ni alloy sheet consisting essentially of Ni are rolled on the core material to produce a jelly roll of a multilayer structure of Mg-Li/Ni (S101). The jelly roll is inserted into a Cu pipe and extruded (S102, S103), is subjected to wire drawing (S104, S105), and is further subjected to rolling (S106) so as to form a sheet or tape. Further, heat treatment (S109) is applied to produce an Mg-Ni alloy. PCOPYRIGHT: (C)2005,JPO&NCIPI