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Journal of Applied Electrochemistry

, Volume 39, Issue 1, pp 39–44 | Cite as

Synthesis and characterization of nano-sized calcium zincate powder and its application to Ni–Zn batteries

  • Chen-Chen YangEmail author
  • Wen-Chen Chien
  • Po-Wei Chen
  • Cheng-Yeou Wu
Original Paper

Abstract

Nano-sized calcium zincate powders used as active materials for a secondary Zn electrode were prepared by a chemical co-precipitation method. The properties were studied by thermal gravimetric analysis (TGA), micro-Raman spectroscopy and nitrogen adsorption–desorption experiments. The secondary Zn electrodes using chemical co-precipitation calcium zincate powders (CP-ZnCa) and ball-milled calcium zincate powders (BM-ZnCa), were examined and compared. The electrochemical performance of the secondary Zn electrodes was systematically investigated by cyclic voltammetry and galvanostatic charge/discharge measurements. It was demonstrated that the electrochemical properties of the secondary Zn-pasted electrode using CP-ZnCa powders were greatly improved, as compared with conventional secondary ZnO electrodes. The results indicated that secondary Ni-Zn batteries using CP-ZnCa powders exhibited a better charge/discharge property and a longer life-cycle performance, compared with those based on ball-milled ZnO + Ca(OH)2 (BM-ZnCa) powders.

Keywords

Zn pasted electrode Calcium zincate powders Chemical process Ni–Zn Micro-Raman 

Notes

Acknowledgement

Financial support from the Taiwan Power Company, Taiwan (Project No: TPC-546-4311-9401B) is gratefully acknowledged.

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Chen-Chen Yang
    • 1
    Email author
  • Wen-Chen Chien
    • 1
  • Po-Wei Chen
    • 1
  • Cheng-Yeou Wu
    • 2
  1. 1.Department of Chemical EngineeringMingchi University of TechnologyTaipei HsienTaiwan, ROC
  2. 2.Taiwan Power Research InstituteTaiwan Power CompanyTaipeiTaiwan, ROC

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