ENERGY STORAGE DEVICE WITH IMPROVED LEAD SULFATE SOLUBILITY

• Main Authors: BUIEL, EDWARD, ROMEO, MIKE, DICKINSON, ENDERS, WESTREICH, PHILIPPE, SUN, WEI
• Format: Patent
• Language: English; French
• Published: 24.02.2011
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; VEHICLES IN GENERAL

An energy storage device includes an electrode comprising lead, an electrode comprising lead dioxide, a separator between the lead and lead dioxide electrodes, and an aqueous solution electrolyte containing sulfuric acid. The sulfuric acid specific gravity when the energy device is fully charged is less than 1.25. L'invention porte sur un dispositif de stockage d'énergie qui comprend une électrode comprenant du plomb, une électrode comprenant du dioxyde de plomb, un séparateur entre les électrodes de plomb et de dioxyde de plomb, et un électrolyte en solution aqueuse contenant de l'acide sulfurique. La gravité spécifique de l'acide sulfurique lorsque le dispositif d'énergie est entièrement chargé est inférieure à 1,25.