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

^*Corresponding author for this work

Energy Materials Laboratory, Institute of Solid State Physics

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

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	292-298
Number of pages	7
Journal	Ionics
Volume	5
Issue number	3-4
DOIs	https://doi.org/10.1007/BF02375853
Publication status	Published - May 1999

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Access to Document

10.1007/BF02375853

Cite this

@article{924367ab629848308af561d00a2521e2,

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",

issn = "0947-7047",

publisher = "Springer Science and Business Media Deutschland GmbH",

number = "3-4",

}

TY - JOUR

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

AN - SCOPUS:34249076226

SN - 0947-7047

VL - 5

SP - 292

EP - 298

JO - Ionics

JF - Ionics

IS - 3-4

ER -

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

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this