Charger and method for charging for silver zinc batteries

H - Electricity – 01 – M

Patent

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H01M 10/46 (2006.01) H02J 7/00 (2006.01)

Patent

CA 2701324

A zinc alkaline rechargeable battery pack is disclosed. The zinc alkaline rechargeable battery pack includes a casing including a plurality of electrochemical cells and recharging management circuitry. Each cell of the plurality of electrochemical cells includes an alkaline electrolyte, an anode and a cathode. The anode comprises zinc. The cathode comprises silver, an oxide of silver, silver metal, or a combination of the silver, the oxide of silver and the silver metal. The alkaline electrolyte includes an aqueous hydroxide of an alkali metal. The recharging management circuitry is connected to the plurality of electrochemical cells. The recharging management circuitry includes a processor, a first voltage detector/controller connected to the processor, a second voltage detector/controller connected to the processor, and a current sensor connected to the processor. The first voltage detector/controller, the second voltage detector/controller and current sensor are connected to the plurality of electrochemical cells. A system for charging a zinc alkaline rechargeable battery pack is also disclosed. A method for charging the rechargeable battery pack is also disclosed.

L'invention porte sur un bloc-batterie unité d'accumulateur rechargeable alcalin au zinc. Le bloc-batterie rechargeable alcalin au zinc comprend un boîtier comprenant une pluralité de cellules électrochimiques et d'éléments de circuit de gestion de recharge. Chaque cellule de la pluralité de cellules électrochimiques comprend un électrolyte alcalin, une anode et une cathode. L'anode comprend du zinc. La cathode comprend de l'argent, un oxyde d'argent, de l'argent métallique, ou une combinaison de l'argent, de l'oxyde d'argent et de l'argent métallique. L'électrolyte alcalin comprend un hydroxyde aqueux d'un métal alcalin. Les éléments de circuit de gestion de recharge sont connectés à la pluralité de cellules électrochimiques. Les éléments de circuit de gestion de recharge comprennent un processeur, un premier détecteur/régulateur de tension connecté au processeur, un second détecteur/régulateur de tension connecté au processeur, et un capteur de courant connecté au processeur. Le premier détecteur/régulateur de tension, le second détecteur/régulateur de tension et le capteur de courant sont connectés à la pluralité de cellules électrochimiques. L'invention porte également sur un système pour charger un bloc-batterie rechargeable alcalin au zinc. L'invention porte en outre sur un procédé de charge du bloc-batterie rechargeable.

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