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一种低温镍氢电池用AB型储氢合金及其制备方法,储氢合金电极及镍氢电池

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10Claims · 4 independent
§ Ⅰ

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Inventor

李瑾瑜; 赵磊; 蔡小娟; 易思远; 姜婉婷; 赵娜; 段亮明; 陈荣洲; 钟盛; 陈跃辉

IPC Classification

C22C 19/03 (2006.01)C22C 45/04 (2006.01)C22F 1/10 (2006.01)B22D 11/06 (2006.01)H01M 10/30 (2006.01)H01M 4/38 (2006.01)C01B 3/0031 (2026.01)

本发明属于镍氢电池技术领域,公开了一种低温镍氢电池用AB型储氢合金及其制备方法,储氢合金电极及镍氢电池。所述储氢合金的化学式通式为LaPrNdYSmMgNiAl,式中,y、z、a、b、u、v、w表示摩尔比,其数值范围为:0≤y≤0.10,0.05≤z≤0.15,0≤u≤0.05,0.30≤v≤0.47,0.10≤w≤0.20,3.25≤a≤3.5,0≤b≤0.25,3.25≤a+b≤3.75。采用本发明的储氢合金制成的储氢合金电极装配的镍氢电池在‑30℃低温放电效率和电池循环寿命皆得到显著提升。

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