Zinc lanthanide sulfonic acid electrolytes

Details Zinc lanthanide sulfonic acid electrolytes Zinc lanthanide sulfonic acid electrolytes

2004-05-13

2008-11-18

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

C252S512000, C252S518100, C252S519500, C205S064000, C429S101000, C429S105000, C429S229000

Reexamination Certificate

active

07452486

ABSTRACT:
Disclosed are aqueous solutions for use in high energy, highly efficient electrical energy storage devices. The solutions contain (a) a high purity sulfonic acid with a low concentration of low valent sulfur compounds or higher valent sulfur compounds susceptible to reduction, (b) a metal or metals in an oxidized state that are capable of being reduced to the zero valent oxidation state, (c) a metal that is in an oxidized state that is incapable of being reduced to its metallic state and (d) optionally, a buffering agent and/or conductivity salts.

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Clarke, et al, “Introducing Cerium Based High Energy Redox Batteries,” ESAT Conference, San Francisco, CA, Apr. 15-17, 2002, pp. 1-6.

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