EFFECTS OF COMPOSITION IN La/Ni-BASED INTERMETALLIC COMPOUNDS USED AS NEGATIVE ELECTRODES IN Ni-MH BATTERIES

机译：Ni / MH电池中用作负极的La / Ni基金属间化合物的组成效应

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In this paper, we have attempted to describe some effects of the composition on the negative electrode properties of LaNi_5-related hydrides. Several relationships between the nature of the nickel substituting element and the chemical (solid gas capacities, hydride formation pressure) and electrochemical (discharge capacities, rate capability, resistance to corrosion) properties have been established. The behaviour of the single substituted compounds highlights the specific role played by each substituent in the multi-component LaNi_(3.55)Mn_(0.4)Al_(0.3)Co_(0.75) alloy, for which a synergic effect allows to reach the best compromise between the discharge capacity, the kinetics and cycling behaviour. The effect of lanthanum replacement in new La-Y-Ni based alloys has been also investigated. In the case of cerium substitution, a modification of the structural organisation takes place, which seems to strongly influence the hydriding properties. First kinetic investigation and cycling experiments have shown the attractive electrochemical properties of the lanthanum-rich compounds. The poor reversibility observed for the pure cerium compound is probably related to its pseudo-binary character, which entails presumably the production in charge of amorphous hydrides.

机译：在本文中，我们试图描述该成分对LaNi-5相关氢化物的负极性能的一些影响。已经建立了镍替代元素的性质与化学性质（固体气体容量，氢化物形成压力）和电化学性质（放电容量，速率能力，耐腐蚀性）之间的几种关系。单个取代化合物的行为突出了多组分LaNi_（3.55）Mn_（0.4）Al_（0.3）Co_（0.75）合金中每个取代基的特殊作用，其协同效应可以在放电容量，动力学和循环行为。还研究了镧替代在新型La-Y-Ni基合金中的作用。在铈取代的情况下，发生了结构组织的改变，这似乎强烈影响了氢化性能。最初的动力学研究和循环实验表明，富镧化合物具有诱人的电化学性能。对于纯铈化合物观察到的不良可逆性可能与其假二元特性有关，这大概意味着需要生产无定形氢化物。

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《NATO Advanced Study Institute on New Trends in Intercalation Compounds for Energy Storage, Sep 22-Oct 2, 2001, Sozopol, Bulgaria》|2001年|p.145-155|共11页
会议地点 Sozopol(BG)
作者
R. BADDOUR-HADJEAN; J.P. PEREIRA-RAMOS; M. LATROCHE; A. PERCHERON-GUEGAN;
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Laboratoire de Dynamique, Interaction et Reactivite CNRS VMR 7075, 2 rue Henri Dunant, 94320 Thiais, France;

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正文语种 eng
中图分类能源与动力工程;
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2. MH/Ni电池用铸态及快淬态RE-Mg-Ni-Co-Al基合金的电化学储氢性能 [J] . 张羊换, 李亚琴, 尚宏伟, 中国有色金属学报：英文版 . 2018,第004期
3. New ternary intermetallic compounds belonging to the R-Y-Ni (R=La, Ce) system as negative electrodes for Ni-MH batteries [J] . R. Baddour-Hadjean, J.P. Pereira-Ramos, M. Latroche Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2002,第0期

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4. Microstructural analysis of the ageing of pseudo-binary (Ti,Zr)Ni intermetallic compounds as negative electrodes of Ni-MH batteries [J] . B. Guiose, F. Cuevas, B. Decamps, Electrochimica Acta . 2009,第10期

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6. EFFECTS OF COMPOSITION IN La/Ni-BASED INTERMETALLIC COMPOUNDS USED AS NEGATIVE ELECTRODES IN Ni-MH BATTERIES [C] . R. BADDOUR-HADJEAN, J.P. PEREIRA-RAMOS, M. LATROCHE, NATO advanced study conference on new trends in intercalation compounds for energy storage . 2002

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EFFECTS OF COMPOSITION IN La/Ni-BASED INTERMETALLIC COMPOUNDS USED AS NEGATIVE ELECTRODES IN Ni-MH BATTERIES

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