公开(公告)号：US20180019469A1

公开(公告)日：2018-01-18

申请号：US15549679

申请日：2016-01-25

Applicant: Panasonic Intellectual Property Management Co. Ltd.

Inventor： HIDEAKI OHYAMA ,  FUMIO KATO ,  HAI-WEN LI ,  ETSUO AKIBA ,  GUOLIANG WANG

IPC: H01M4/38 ,  C22C19/03 ,  H01M10/26 ,  B22F1/00 ,  C22C19/07 ,  H01M4/24 ,  H01M10/30 ,  B22F9/04

CPC classification number: H01M4/383 ,  B22F1/00 ,  B22F1/0003 ,  B22F2009/041 ,  C22C19/00 ,  C22C19/03 ,  C22C19/07 ,  H01M4/24 ,  H01M4/38 ,  H01M10/26 ,  H01M10/30 ,  H01M2300/0014

Abstract: Alloy powder for electrodes that includes particles of a hydrogen-absorbing alloy having an AB2 type crystal structure. The hydrogen-absorbing alloy includes first elements that are located in an A site in the crystal structure and include Zr, and second elements that are located in a B site and include Ni and. Mn. The hydrogen-absorbing alloy includes a plurality of alloy phases having different Zr concentrations. In each of the alloy phases, the percentage of Zr in the first elements exceeds 70 atom %.