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Secondary cell anode AB5 type rare earth-transition metal compound 发明授权

2023-09-03 2490 179K 0

专利信息

申请日期 2025-07-11 申请号 JP2000596189
公开(公告)号 JP4027038B2 公开(公告)日 2007-12-26
公开国别 JP 申请人省市代码 全国
申请人 Santoku Corporation176660
简介 Manganese-free rare earth-transition metal AB5-type hydrogen-absorbing alloys having favorable high rate discharge characteristics, suitable for use in rechargeable batteries for electrical vehicles or hybrid electrical vehicles, include compositions of the general formula : R(CouAlvMwNi1-u-v-w)z, where R is at least one element selected from rare earth elements and yttrium (Y), M is at least one refractory metal selected from Groups IVB, VB, and VIB of the periodic table, the value of u is from 0 to about 0.25, v is from 0 to about 0.10, w is from 0 to about 0.05, and z, the ratio of R(CouAlvMwNi1-u-v-w)/R, is from about 4.70 to about 5.50. The unit cell volume is from about 87 to about 88.5 A3 at 25° C., the plateau pressure is from about 3 to about 10 apsi at 25° C., and the composition is essentially free of manganese.


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