Study of AB2 alloy electrodes for Ni/MH battery prepared by centrifugal casting and gas atomization

Young, K.; Koch, J.; Ouchi, T.; Banik, A.; Fetcenko, M.A.

doi:10.1016/j.jallcom.2010.02.161

Cited by 18 publications

(9 citation statements)

References 83 publications

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“…We obtained this composition by continuing optimization and testing more than 400 alloys. The properties of C14-predominated alloys prepared by VIM and other techniques were also previously compared [43] and are summarized in Table 2. Because of the small sample size, use of expensive argon gas, and high utility costs from water chiller and arc power supply, AM is the most expensive method for making MH alloys.…”

Section: Melting and Castingmentioning

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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Section: Melting and Castingmentioning

confidence: 99%

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

2017

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“…Rapid-quench [36][37][38][39][40][41][42][43][44][45] and annealing ( [33,41,[46][47][48][49][50][51][52][53][54][55][56][57][58][59] are two common methods to alter the constituent phase abundances in Laves phase and/or other non-Laves minor phases in AB 2 alloys without changing the overall chemical composition. The drawback of rapid-quench is the possibility of producing microcrystalline and even amorphous components, which increases the complexity of comparison [41,44].…”

Section: Introductionmentioning

confidence: 99%

The correlation of C14/C15 phase abundance and electrochemical properties in the AB2 alloys

Young¹,

Ouchi²,

Huang³

et al. 2010

Journal of Alloys and Compounds

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“…In this paper, we propose to combine GA and annealing in hydrogen (AH) processes to further extend the cycle life of the Cu-containing AB 5 alloys. Similar work has been performed on the Laves phase based AB 2 alloys and the results were very encouraging [19,20]. While GA alone provides advantages of lowering production cost and extending cycle life, the additional hydrogen annealing further improves the capacity, formation, high-power, and low-temperature performance of these MH alloys.…”

Section: Introductionmentioning

confidence: 57%

“…All nine powders crafted with three different processes and three compositions were made into sealed C-size cylindrical cells by the fabrication method described previously [19]. Performance results from various tests are listed in Table 4.…”

Section: Full Ni/mh Batterymentioning

confidence: 99%