AC impedance behavior of the Ti4Ni2Oy and Ti3.5Zr0.5Ni2Oy type metal hydride electrodes

G. Vaivars; J. Kleperis; G. Mlynarek; G. Wójcik; I. Zavaliy

doi:10.1007/BF02375853

AC impedance behavior of the Ti₄Ni₂O_y and Ti_3.5Zr_0.5Ni₂O_y type metal hydride electrodes

G. Vaivars^*
, J. Kleperis
, G. Mlynarek
, G. Wójcik
, I. Zavaliy

^*Šī darba korespondējošais autors

Enerģijas materiālu laboratorija, Cietvielu fizikas institūts

Institute of Non-Ferrous Metals
NASU - Karpenko Physico-Mechanical Institute

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

3 Atsauces (Scopus)

Kopsavilkums

The hydrogen storage alloy electrodes of the type Ti₄Ni ₂O_y, (y = 0, 0.3 and 0.6) and Ti_3.5ZR _0.5Ni₂O_y (y = 0.15 and 0.3) were investigated by impedance spectroscopy for potential application as negative electrode in alkaline secondary nickel-metal hydride (MH) batteries. The phase Ti ₄Ni₂O_0.30 was found to be electrochemically more stable during the cycling. The addition of copper or nickel powder as current collector improved the electrochemical behavior of the electrodes. It was possible in this way to decrease the charge transfer resistance. These additions have a negligible influence on the stability of electrode material during cycling.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	292-298
Lapu skaits	7
Žurnāls	Ionics
Sējums	5
Izdevuma numurs	3-4
DOIs	https://doi.org/10.1007/BF02375853
Publikācijas statuss	Publicēts - maijs 1999

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10.1007/BF02375853

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title = "AC impedance behavior of the Ti4Ni2Oy and Ti3.5Zr0.5Ni2Oy type metal hydride electrodes",

abstract = "The hydrogen storage alloy electrodes of the type Ti4Ni 2Oy, (y = 0, 0.3 and 0.6) and Ti3.5ZR 0.5Ni2Oy (y = 0.15 and 0.3) were investigated by impedance spectroscopy for potential application as negative electrode in alkaline secondary nickel-metal hydride (MH) batteries. The phase Ti 4Ni2O0.30 was found to be electrochemically more stable during the cycling. The addition of copper or nickel powder as current collector improved the electrochemical behavior of the electrodes. It was possible in this way to decrease the charge transfer resistance. These additions have a negligible influence on the stability of electrode material during cycling.",

author = "G. Vaivars and J. Kleperis and G. Mlynarek and G. W{\'o}jcik and I. Zavaliy",

year = "1999",

month = may,

doi = "10.1007/BF02375853",

language = "English",

volume = "5",

pages = "292--298",

journal = "Ionics",

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T1 - AC impedance behavior of the Ti4Ni2Oy and Ti3.5Zr0.5Ni2Oy type metal hydride electrodes

AU - Vaivars, G.

AU - Kleperis, J.

AU - Mlynarek, G.

AU - Wójcik, G.

AU - Zavaliy, I.

PY - 1999/5

Y1 - 1999/5

N2 - The hydrogen storage alloy electrodes of the type Ti4Ni 2Oy, (y = 0, 0.3 and 0.6) and Ti3.5ZR 0.5Ni2Oy (y = 0.15 and 0.3) were investigated by impedance spectroscopy for potential application as negative electrode in alkaline secondary nickel-metal hydride (MH) batteries. The phase Ti 4Ni2O0.30 was found to be electrochemically more stable during the cycling. The addition of copper or nickel powder as current collector improved the electrochemical behavior of the electrodes. It was possible in this way to decrease the charge transfer resistance. These additions have a negligible influence on the stability of electrode material during cycling.

AB - The hydrogen storage alloy electrodes of the type Ti4Ni 2Oy, (y = 0, 0.3 and 0.6) and Ti3.5ZR 0.5Ni2Oy (y = 0.15 and 0.3) were investigated by impedance spectroscopy for potential application as negative electrode in alkaline secondary nickel-metal hydride (MH) batteries. The phase Ti 4Ni2O0.30 was found to be electrochemically more stable during the cycling. The addition of copper or nickel powder as current collector improved the electrochemical behavior of the electrodes. It was possible in this way to decrease the charge transfer resistance. These additions have a negligible influence on the stability of electrode material during cycling.

UR - https://www.scopus.com/pages/publications/34249076226

U2 - 10.1007/BF02375853

DO - 10.1007/BF02375853

M3 - Article

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SN - 0947-7047

VL - 5

SP - 292

EP - 298

JO - Ionics

JF - Ionics

IS - 3-4

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