Abstract:
This invention relates to the regeneration of spent alkaline solutions, for example, alkaline electrolyte solutions used in metal/air batteries, specifically in aluminum/air batteries. The invention provides methods and systems to regenerate alkaline electrolyte solutions by adding water and optionally other solvents to spent electrolyte solutions, thus precipitating metal hydroxides from the spent electrolyte solution.
Abstract:
The present invention relates to safety methods and mechanisms for treating electrolyte solutions in batteries, specifically metal-air batteries. Systems and methods of the invention protect the battery, protect the battery operator and protect the environment from potential material hazards. This invention provides materials for arresting a potentially hazardous electrolyte solution by forming solid or gel porous polymer structures. The polymer porous structures consume or confine the electrolyte solution thus preventing its hazardous potential.
Abstract:
This invention is directed to regeneration of solutions comprising metal ions, and production of valuable hydroxide compounds. Specifically, the invention is related to regeneration of spent electrolyte solutions comprising metal ions (e.g. Al ions), such as electrolyte solutions used in metal/air batteries. The invention is further related to production of layered double hydroxides, and, optionally aluminum tri-hydroxide from aluminate.