| 摘要 |
PURPOSE:To enhance the discharge output characteristic and energy efficiency and enable short time charging by connecting the neg. electrode side electrolyte storing trough as the body with the low concentration neg. electrode side electrolyte storing through at the time of charging, and sinking the neg. electrode side electrolytic concentration. CONSTITUTION:During charging, low concentration neg. electrode side electrolyte pipings 56, 58 are set on the communication side, and a low concentration neg. electrode side electrolyte 54 and a neg. electrode side electrolyte 24 are mixed to dilute the neg. electrode side electrolyte, and the electroprecipitation Zn density on the neg. electrode 12 is increased. As a result, the Zn ion concentration on the pos. electrode 10 side reduces in the final period of charging to cause suppressing the Zn ion concentration difference between the pos. and neg. electrodes 10, 12, and the electroprecipitation density on the neg. electrode 12 increases. When the charge is finished, the low concentration neg. electrode side electrolyte pipings 56, 58 are changed over into the shutoff state, and the charging will be performed only by the neg. electrode side electrolyte storing through 24 as the body. Thereby the electroprecipitation Zn density on the neg. electrode during charging can effectively be increased so that high energy density can be obtained. |
