Influence of Nanosized α-Ni(OH)2 Addition on the Electrochemical Performance of β-Ni(OH)2 Electrode

T.A. Han; J.P. Tu; Jian Bo Wu; Y.F. Yuan; Y. Li

doi:10.4028/www.scientific.net/SSP.121-123.1265

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HomeSolid State PhenomenaSolid State Phenomena Vols. 121-123Influence of Nanosized α-Ni(OH)2 Addition on the...

Influence of Nanosized α-Ni(OH)₂ Addition on the Electrochemical Performance of β-Ni(OH)₂ Electrode

Abstract:

Al-substituted α-Ni(OH)2 was synthesized by a chemical co-precipitation. The as-prepared α-Ni(OH)2 particles were characterized by the means of X-ray diffraction (XRD) and scanning electron microscope (SEM). The obtained α-Ni(OH)2 particles were well crystallized, spherical shape with the particle sizes of 20-35 nm. The electrochemical performance of β-Ni(OH)2 electrode with addition of nanosized α-Ni(OH)2 was investigated by galvanostatic charge-discharge tests. The nanosized α-Ni(OH)2 as additive in the commercial microsized spherical β-Ni(OH)2 electrode improved the discharge capability. As compared to commercial β-Ni(OH)2 electrode, the electrode with nanosized α-Ni(OH)2 exhibited excellent better charge-discharge cycling stability. It may be a promising positive active material for alkaline secondary batteries.

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Periodical:

Solid State Phenomena (Volumes 121-123)

Pages:

1265-1268

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.121-123.1265

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Online since:

March 2007

Authors:

T.A. Han, J.P. Tu, Jian Bo Wu, Y.F. Yuan, Y. Li

Keywords:

Electrochemical Performance, Electrode, Nanosized α-Ni(OH)₂, β-Ni(OH)₂

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