Lead-free battery and vehicle system using lead-free battery

Details Lead-free battery and vehicle system using lead-free battery Lead-free battery and vehicle system using lead-free battery

H - Electricity

01

M

H01M 10/32 (2006.01) B60L 11/18 (2006.01) H01M 4/24 (2006.01) H01M 4/34 (2006.01) H01M 10/44 (2006.01)

Patent

CA 2604457

The present invention provides a high-performance, high-capacity secondary battery that uses neither sulfuric acid in the electrolyte solution, nor other materials that could contribute to environmental pollution. The present invention also provides a vehicle system employing a lead-free battery that uses no lead nor sulfuric acid, which can be harmful to the environment, and that achieves a higher performance and higher capacity that lead storage batteries. Further, the vehicle system includes a supplementary charging function for charging the battery while the vehicle is running, by taking advantage of the fast- charging characteristics of the lead-free battery, which are superior to those of lead storage batteries, enabling the vehicle to travel long distances on a single external charge. The secondary battery has an electrode formed of calcium, silver oxide, and carbon as the anode, an electrode formed of zinc and carbon as the cathode, and an aqueous alkaline solution as the electrolyte solution. The vehicle system has at least first and second battery packs configured of these lead-free batteries, in-wheel generators mounted within wheels of the vehicle, an electric motor for driving the vehicle, and a charging/discharging switch device having a controller for automatically switching between the first and second battery packs.

L'invention concerne un accumulateur haute performance à grande capacité, lequel ne contient pas de substance polluante telle que du plomb dans une plaque d'électrode ou de l'acide sulfurique dans un électrolyte. Il est également possible d'obtenir un système de véhicule qui met en oeuvre une batterie sans plomb présentant une meilleure performance et possédant une capacité plus élevée qu'une batterie à plomb, sans mettre en oeuvre du plomb ou de l'acide sulfurique, lesquels sont polluants, cette batterie ayant de meilleures caractéristiques de charge/décharge haute vitesse qu'une batterie à plomb, ce qui permet un trajet longue distance par chargement extérieur en une seule fois. Plus spécifiquement, l'invention concerne une batterie secondaire qui comprend: une anode possédant une électrode contenant du calcium, de l'oxyde d'argent et du carbone, une cathode possédant une électrode contenant du zinc et du carbone et une solution aqueuse alcaline en tant qu'électrolyte. Grâce à l'utilisation de cette batterie sans plomb, on obtient un système de véhicule comprenant un premier et un second bloc-batterie, une génératrice-roue fixée à une roue, un moteur destiné à fournir de la puissance au véhicule et un dispositif de commutation de charge/décharge possédant une unité de commande permettant la commutation automatique entre le premier et le second bloc-batterie.

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