Electrochemical Properties of Zinc-LaCoO3 Electrode for Alkaline Zinc-Based Battery

Atchana Wongchaisuwat; Rapat Boonpong; Attera Worayingyong; Marisa Arunchaiya

doi:10.4028/www.scientific.net/AMR.284-286.581

Paper Titles

Study on the Mechanical Properties and Creep Behaviour of Carbon Fiber Nano-Composites
p.557

The Grain Rotation Behavior of CuY0.8 Nano Alloys in the Process of Plastic Deformation
p.565

Electrochemical Properties of Polyaniline/α-Zirconium Phosphate Nanocomposite and the Effect of pH Values
p.570

TiC Particulates Prepared by Self-Propagating High Temperature Synthesis
p.577

Electrochemical Properties of Zinc-LaCoO₃ Electrode for Alkaline Zinc-Based Battery
p.581

The Properties of Coarse Grain Heat Affect Zone of Pipeline Steels with Excellent Deformability under Different Welding Heat Input
p.585

Isotropic Pyrolytic Carbon Fabricated by Developing Self-Heating Plates Chemical Vapor Deposition
p.589

Preparation and Characterization of N Doped TiO₂/ Sepiolite Composite Materials
p.597

Synthesis of [6,7]-Dihydro-[1,4]-Dioxino-[2,3-f][2,1,3]-Benzothiadiazole: A Novel Building Block for Electron-Poor Conjugated Polymers"
p.601

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 284-286Electrochemical Properties of Zinc-LaCoO3...

Electrochemical Properties of Zinc-LaCoO₃ Electrode for Alkaline Zinc-Based Battery

Abstract:

The electrochemical behaviors of zinc anode in the presence of the additives added to the electrodes are presented. LaCoO₃ was used as an additive to improve the electrochemical properties of the zinc anode. LaCoO₃ synthesized by sol gel method (Schiff base complex) was added to Zn and ZnO powder with the weight ratios of 1:0.05 and 1:0.002 respectively. The electrochemical properties of the zinc and zinc/LaCoO₃ electrodes in 6M KOH solution were investigated by voltammetric technique and electrochemical impedance spectroscopy (EIS). The cyclic voltammograms showed that zinc electrodes with LaCoO3 additive gave higher anodic currents and ZnO passivation delayed. The cathodic Tafel plot indicated that the hydrogen overpotential shifted toward more negative value. The EIS revealed that the charge transfer resistances of the zinc/LaCoO₃ electrodes were higher than that of zinc electrodes.