Corrosion inhibiting electrolytic solutions

Details Corrosion inhibiting electrolytic solutions Corrosion inhibiting electrolytic solutions

H - Electricity

01

M

H01M 6/04 (2006.01) H01M 10/08 (2006.01)

Patent

CA 2324017

The present invention relates to methods and compositions for reducing corrosion and gassing that occurs within lead-acid storage batteries. In particular, combinations of anodic corrosion inhibitors such as hydrolyzed proteins, organic iodine complexes, iodides, and quaternary ammonium compounds are preferred inhibitors; and these inhibitors provide excellent results when also used in combination with surfactants which are diphenyl sulfonate derivates. Admixtures of anodic corrosion inhibitors, surfactants, sulfuric acid, and water are used to replace the conventions electrolyte solution within the battery.

L'invention porte sur des procédés et compositions réduisant la corrosion et le dégazage dans les accumulateurs au plomb, et en particulier sur des combinaisons d'inhibiteurs de corrosion anodique dont les préférés sont des combinaisons de protéines hydrolysées, de complexes organiques iodés, d'iode, ou d'ammonium quaternaire. Ces inhibiteurs fournissent d'excellents résultats lorsque combinés en outre à des tensio-actifs tels que des dérivés du sulfonate de diphényle. On utilise des mélanges d'inhibiteurs de corrosion anodique, de tensio-actifs, d'acide sulfurique et d'eau pour remplacer les solutions usuelles d'électrolytes des batteries.

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