Effect of Cu powder as an additive material on the inner pressure of a sealed-type Ni–MH rechargeable battery using a Zr-based alloy as an anode

kim, dong-myung; lee, ho; Cho, Kurn; Lee, Jun Young

doi:10.1016/s0925-8388(98)00835-4

Cited by 21 publications

(4 citation statements)

References 6 publications

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“…The limited volume electrode (LVE) approach was used to investigate LaMm-Ni 4.1 Al 0.3 Mn 0.4 Co 0.45 electrode material free from additives and binding materials [25]. Binding materials were avoided (e.g., metal powders, graphite, polytetrafluoroethylene (PTFE), polyvinyl alcohol (PVA) since they can falsify the results of the electrochemical experiments [1,26,27,28,29]. LVEs were prepared by high pressure compression of investigated alloy between the two golden metal mesh (Good Fellow, nominal aperture 0.25 mm, 99.99% Au) under pressure of 20 MPa [21,22,30].…”

Section: Methodsmentioning

confidence: 99%

Corrosion of Hydrogen Storage Metal Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 in the Aqueous Solutions of Alkali Metal Hydroxides

2018

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Corrosion of pristine AB5-type metal alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 in the aqueous solutions of alkali metal hydroxides of diverse composition and concentration was tested. Correlation was observed between the alloy corrosion intensity in various hydroxide solutions, and its electrochemical capacity in these electrolytes. Mm(OH)3, CoO(OH), and nickel metal aggregates were detected among the products of selective oxidation of the alloy. High intensity corrosion of the alloy was observed in RbOH and CsOH solutions leading to formation of ternary oxides at the surface of the alloy. Presence of rubidium and cesium ions in the electrolyte were found to create an additional driving force for lanthanides (La and Ce) to leave the lattice of the alloy, thus, enhancing its corrosion. Corrosion, together with mechanical degradation, were found to be the main reasons of deactivation of LaMm-Ni4.1Al0.3Mn0.4Co0.45 alloy upon elongated electrochemical treatment.

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Section: Methodsmentioning

confidence: 99%

Corrosion of Hydrogen Storage Metal Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 in the Aqueous Solutions of Alkali Metal Hydroxides

2018

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“…Patents [48,49]. Further reduction to a desirable size can be achieved by crushing [50], dry ball milling [51], wet ball milling [52], centrifugal grinding, or jet milling [53]. Three different powder fabrication methods-hydrogenation, dry ball milling, and wet ball milling-on a F-treated AB 2 MH alloy, were compared and the third showed the best electrochemical performance [54].…”

Section: Particle Size Reductionmentioning

confidence: 99%

C14 Laves Phase Metal Hydride Alloys for Ni/MH Batteries Applications

2017

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C14 Laves phase alloys play a significant role in improving the performance of nickel/metal hydride batteries, which currently dominate the 1.2 V consumer-type rechargeable battery market and those for hybrid electric vehicles. In the current study, the properties of C14 Laves phase based metal hydride alloys are reviewed in relation to their electrochemical applications. Various preparation methods and failure mechanisms of the C14 Laves phase based metal hydride alloys, and the influence of all elements on the electrochemical performance, are discussed. The contributions of some commonly used constituting elements are compared to performance requirements. The importance of stoichiometry and its impact on electrochemical properties is also included. At the end, a discussion section addresses historical hurdles, previous trials, and future directions for implementing C14 Laves phase based metal hydride alloys in commercial nickel/metal hydride batteries.

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“…The slurry was applied to a Ni foam to make a MH sheet using a doctor-blade technique. 9,10 The electrode sheet was dried at 60ЊC for 12 h, and then roll-pressed into an electrode with a thickness of 0.4 mm. The MH sheet was cut to 4 ϫ 5 cm.…”

Section: Methodsmentioning

confidence: 99%

Effect of Cu Powder as an Additive Material on the Properties of Zr-Based Pasted Alloy Electrodes for Ni/MH Batteries

Lee

et al. 2000

J. Electrochem. Soc.

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Effect of Cu powder as an additive material on the inner pressure of a sealed-type Ni–MH rechargeable battery using a Zr-based alloy as an anode

Cited by 21 publications

References 6 publications

Corrosion of Hydrogen Storage Metal Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 in the Aqueous Solutions of Alkali Metal Hydroxides

Corrosion of Hydrogen Storage Metal Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 in the Aqueous Solutions of Alkali Metal Hydroxides

C14 Laves Phase Metal Hydride Alloys for Ni/MH Batteries Applications

Effect of Cu Powder as an Additive Material on the Properties of Zr-Based Pasted Alloy Electrodes for Ni/MH Batteries

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