| Zinc electrode has advantage of high specific energy, abundant resource, low cost and et al, so it has been applied to battery industry. However, the cycle life of the zinc electrode isn't able to content actual demand for it exists shortage of distortion, dendrite, corrosion, passivation and et al. Especially, its capacity fast decay during deep cycle charge-discharge. The mechanism of capacity fast decay hasn't been investigated expressly. However, the improvement of battery performance depends on progress of materials investigation. So, it has very important theory and use significance for saving resource, decrease cost and the improvement of the cycle life of the battery, which that is studied that the electrochemical performance of the zinc electrode are effected on its organizational structure, crystalline state and processing method. In this paper, the relationship was studied between the organizational structure, crystalline state and processing method of the zinc electrode and its electrochemical performance for the zinc single crystal, zinc polycrystal and nanometer zinc oxide by metallurgical phase, XRD, TEM, potantiodynamic polarization, CV, cycle charge- discharge. The results show that zinc single crystal is able to be growed with growth technology that the rate of its growth is 1mm/h and temperature slope of its growth is 10℃/cm and growth crucible of suitable shape. To the electrodes of zinc (002) single crystal and zinc (100) single crystal, the atomic binding energy of the crystal face of Zn (002) single crystal is more than of Zn (100) single crystal. So, dissolved (oxidized) rate of Zn (100) single crystal is more than of Zn (002) single crystal. On surface of the electrode the contacted atom numbers of every "adsorbed atom" differ in electrolyte for the degree of closing of atom arrangement isn't the same among the crystal faces of Zn single crystal. The contacted atom numbers of the close-packed plane is the least. Electrodeposition rate of the metal accretes with increase of the contacted atom numbers, so the electrodeposition (deoxidized) rate of Zn (100) single crystal is more than of Zn (002) single crystal. During cycle charge-discharge, the deposition density of the electrode of Zn (002) single crystal, Zn (100) single crystal and Zn polycrystal decreased in turn due to their exchange current density decreasing. Therefore, the dendrite crystal growth of Zn polycrystal is easier than Zn single crystal.There is a great deal of defect in the Zn polycrystal, such as grain boundary and dislocation, so the dissolution was accelerated. And the dislocation is of advantage for electrodeposition during the deoxidization. So, the dissolved and electrodeposition rates of the electrode of the Zn polycrystal are more than the electrode of Zn single crystal. Not only zinc has a great deal of grain boundary but also the dislocation has been proliferated after zinc was cold deformed. Therefore, the dissolved and electrodeposition rates of the zinc electrode of cold punching are the most among the all investigated electrodes. Zinc of cold punching has deforming texture. However, the zinc electrode of the zinc of cold punching and annealing has annealing texture and its residual stress and some of dislocation were decreased. Consequently, the dissolved and electrodeposition rates of the zinc electrode of the deforming texture are more than the zinc electrode of annealing texture. But it is prominent that the texture has an effect on electrochemical performance. The impurity element is distributed on the grain boundary for the area of the grain boundary decreases due to grain growth. As a result, the local corrosion, such as the intercrystalline corrosion, was aggravated and the corrosion resistance of the Zn electrode was reduced. However, the effect of the grains size on the electrochemical performance of the Zn electrode is much less than the dislocation and other defects.The results, which the electrochemical performance of the ZnO powder and its influence on Zn electrode were stud...
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