A new type lead paste mixed with binders used in thin-plate, spirally wound lead acid batteries is introduced. The utility of positive active material can obtain 54.17% and 37.71% at discharge currents of 0.5C and 5.0...A new type lead paste mixed with binders used in thin-plate, spirally wound lead acid batteries is introduced. The utility of positive active material can obtain 54.17% and 37.71% at discharge currents of 0.5C and 5.0C. The investigation was performed by means of X-ray diffraction （XRD）, scaning electron microscopy （SEM）, infrared spectroscopy （IR）, cylic voltammetry （CV）, the results revealed more details on the reaction mechanism of paste-mixing. Further conclusion can be obtained that the reaction of paste-mixin is a physical process, and the chemical reactions is local reaction, which is different from traditional mixing process, the binders has some effect on the formation of battery process. The binders can dissolve in elec trolyte, which have no disadvantageous effect on the charge-discharge performance.展开更多
The differences of electrochemistry performance between the purchased lead carbonate and the prepared lead carbonate were studied by the methods of cycle voltammogram, electrochemical impedance spectroscope (EIS), con...The differences of electrochemistry performance between the purchased lead carbonate and the prepared lead carbonate were studied by the methods of cycle voltammogram, electrochemical impedance spectroscope (EIS), constant current discharge, thermal gravimetric analysis, and scan electron microscope (SEM) etc. in the paper. It was showed that the reacting activity of the prepared lead carbonate was higher than that of the purchased lead carbonate. And several points of view were concluded as follows. (1) The prepared lead carbonate contains chemical structure water, but the purchased lead carbonate doesn’t contain chemical structure water. (2) The main chemical substance in the purchased lead carbonate powder is PbCO3, while the one in the prepared lead carbonate powder is 2PbCO3·Pb(OH)2. (3) The particle size of the prepared lead carbonate is smaller than that of the pur- chased lead carbonate.展开更多
文摘A new type lead paste mixed with binders used in thin-plate, spirally wound lead acid batteries is introduced. The utility of positive active material can obtain 54.17% and 37.71% at discharge currents of 0.5C and 5.0C. The investigation was performed by means of X-ray diffraction （XRD）, scaning electron microscopy （SEM）, infrared spectroscopy （IR）, cylic voltammetry （CV）, the results revealed more details on the reaction mechanism of paste-mixing. Further conclusion can be obtained that the reaction of paste-mixin is a physical process, and the chemical reactions is local reaction, which is different from traditional mixing process, the binders has some effect on the formation of battery process. The binders can dissolve in elec trolyte, which have no disadvantageous effect on the charge-discharge performance.
文摘The differences of electrochemistry performance between the purchased lead carbonate and the prepared lead carbonate were studied by the methods of cycle voltammogram, electrochemical impedance spectroscope (EIS), constant current discharge, thermal gravimetric analysis, and scan electron microscope (SEM) etc. in the paper. It was showed that the reacting activity of the prepared lead carbonate was higher than that of the purchased lead carbonate. And several points of view were concluded as follows. (1) The prepared lead carbonate contains chemical structure water, but the purchased lead carbonate doesn’t contain chemical structure water. (2) The main chemical substance in the purchased lead carbonate powder is PbCO3, while the one in the prepared lead carbonate powder is 2PbCO3·Pb(OH)2. (3) The particle size of the prepared lead carbonate is smaller than that of the pur- chased lead carbonate.
