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Materials for Renewable and Sustainable Energy
Article . 2016 . Peer-reviewed
License: CC BY
Data sources: Crossref
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https://dx.doi.org/10.60692/6j...
Other literature type . 2016
Data sources: Datacite
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Other literature type . 2016
Data sources: Datacite
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Electrochemical characterization of mechanically alloyed LaCaMgNi9 compound

التوصيف الكهروكيميائي لمركب LaCaMgNi9 المخلوط ميكانيكيًا
Authors: Safa Chebab; M. Abdellaoui; Michel Latroche; V. Paul‐Boncour;

Electrochemical characterization of mechanically alloyed LaCaMgNi9 compound

Abstract

El rendimiento de una batería de níquel-hidruro metálico (Ni–MH) depende principalmente de las características del electrodo negativo. Las características electroquímicas del compuesto LaCaMgNi9 aleado mecánicamente, incluida la capacidad de descarga y el coeficiente de difusión de hidrógeno, se estudiaron en función de las condiciones de aleación mecánica (MA). Las mediciones electroquímicas muestran que el electrodo LaCaMgNi9 tiene una capacidad de descarga máxima de aproximadamente 150 mAh/g a una velocidad de descarga de C/3. La capacidad de descarga de hidrógeno disminuye drásticamente a medida que la duración de la MA excede las 20 h.

Les performances d'une batterie nickel-hydrure métallique (Ni–MH) dépendent principalement des caractéristiques de l'électrode négative. Les caractéristiques électrochimiques du composé mécaniquement allié LaCaMgNi9, y compris la capacité de décharge et le coefficient de diffusion de l'hydrogène, ont été étudiées en fonction des conditions d'alliage mécanique (MA). Les mesures électrochimiques montrent que l'électrode LaCaMgNi9 a une capacité de décharge maximale d'environ 150 mAh/g à un taux de décharge de C/3. La capacité de décharge d'hydrogène diminue considérablement lorsque la durée de l'AMM dépasse 20 h.

The performance of a nickel–metal hydride (Ni–MH) battery mainly depends on the characteristics of the negative electrode. The electrochemical characteristics of mechanically alloyed compound LaCaMgNi9, including the discharge capacity and the hydrogen diffusion coefficient, were studied as function of mechanical alloying (MA) conditions. The electrochemical measurements show that the LaCaMgNi9 electrode has a maximum discharge capacity of about 150 mAh/g at a discharge rate of C/3. The hydrogen discharge capacity dramatically decreases as MA duration exceeds 20 h.

يعتمد أداء بطارية هيدريد النيكل والمعدن (Ni - MH) بشكل أساسي على خصائص القطب السالب. تمت دراسة الخصائص الكهروكيميائية للمركب المخلوط ميكانيكيًا LaCaMgNi9، بما في ذلك سعة التفريغ ومعامل انتشار الهيدروجين، كدالة لظروف السبائك الميكانيكية (MA). تظهر القياسات الكهروكيميائية أن إلكترود LaCaMgNi9 لديه قدرة تفريغ قصوى تبلغ حوالي 150 مللي أمبير/جم بمعدل تفريغ C/3. تنخفض قدرة تفريغ الهيدروجين بشكل كبير حيث تتجاوز مدة المتوسط المتحرك 20 ساعة.

Keywords

Electrode, Materials Science, Metal Hydrides, FOS: Physical sciences, Organic chemistry, Diffusion, Analytical Chemistry (journal), Nickel, Materials Chemistry, Electrochemistry, Nuclear Fuel Development, Battery (electricity), Hydride, Chromatography, Metal, Physics, Hydrogen storage, Power (physics), Superconductivity in Heavy Fermion Systems, Condensed Matter Physics, Materials science, Chemistry, Physics and Astronomy, Physical chemistry, Materials and Methods for Hydrogen Storage, Physical Sciences, Metallurgy, Alloy, Thermodynamics, Hydrogen

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
7
Top 10%
Average
Average
gold
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