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Hydrogen storage alloy and alkaline storage battery employing hydrogen storage alloy as negative ele 发明申请

2023-08-31 3670 402K 0

专利信息

申请日期 2025-07-23 申请号 EP08022199
公开(公告)号 EP2096691A1 公开(公告)日 2009-09-02
公开国别 EP 申请人省市代码 全国
申请人 Sanyo Electric Co Ltd
简介 A hydrogen storage alloy of the present invention includes component A including a rare earth element represented by Ln and magnesium and component B including elements containing at least nickel and aluminum, wherein a primary alloy phase of a hydrogen storage alloy represents an A5B19 type structure; a general formula is represented as Ln1-xMgxNiy-a-bAlaMb (wherein M represents at least one element selected from Co, Mn, and Zn; and 0.1 ≤ x ≤ 0.2, 3.6 ≤ y ≤ 3.9, 0.1 ≤ a ≤ 0.2, and 0 ≤ b ≤ 0.1); a rare earth element Ln includes maximally two elements containing at least La; and absorption hydrogen equilibrium pressure (Pa) is 0.03-0.17 MPa when the hydrogen amount absorbed in the hydrogen storage alloy (H/M (atomic ratio)) at 40°C is 0.5.


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