| 摘要 |
PURPOSE:To safely and easily produce a large amt. of hydrogen storage alloy powder by pulverizing a hydrogen storage alloy lump in a nonoxidizing atmosphere with a roller mill. CONSTITUTION:A hydrogen storage alloy lump of LaNi5, MmNi5 ((m)is a misch metal), etc., is pulverized with an airtight high-compression roller mill in a nonoxidizing atmosphere of argon, etc. The crushed material is passed through a sieve, and a hydrogen storage alloy powder is recovered. Consequently, a large amt. of hydrogen storage alloy is produced in a short time, and further safety is secured because a highly dangerous material such as gaseous hydrogen is not used. |
