Abstract: An electrochemical cell is provided comprising a thin metal foil packaging made from at least one sheet of metal foil and having a perimeter extending around at least a portion of the electrochemical cell, as well as an electrochemical cell stack contained within the thin metal foil packaging, and a metal-to-metal welded seal around at least a portion of the perimeter of the thin metal foil packaging. The metal-to-metal welded seal is hermetic or nearly hermetic. Furthermore, the metal-to-metal welded seal is narrow, having a width of less than about 1 mm, and is less than about 5 mm away from the electrochemical cell stack. In some embodiments, the thin metal foil packaging functions not only as a hermetically or near hermetically sealed packaging, but also as either the negative or positive current collector, with one electrode of the cell bonded to the foil packaging.

Abstract: Substitution of tantalum into the lattice of monoclinic niobium phosphate results in improved reversibility, near 0% irreversible loss, and similar excellent 20 C high rate behavior in large grain material without the formation of electronically conducting nanocomposites. Tantalum substitution into niobium pentaphosphate enables an improved stabilization of the difficult to fabricate monoclinic niobium phosphate phase. Such tantalum-substituted niobium phosphates show excellent potential for use as electrodes in lithium or lithium-ion batteries.

Abstract: Substitution of tantalum into the lattice of monoclinic niobium phosphate results in improved reversibility, near 0% irreversible loss, and similar excellent 20 C high rate behavior in large grain material without the formation of electronically conducting nanocomposites. Tantalum substitution into niobium pentaphosphate enables an improved stabilization of the difficult to fabricate monoclinic niobium phosphate phase. Such tantalum-substituted niobium phosphates show excellent potential for use as electrodes in lithium or lithium-ion batteries.

Abstract: An electrochemical cell is provided comprising a thin metal foil packaging made from at least one sheet of metal foil and having a perimeter extending around at least a portion of the electrochemical cell, as well as an electrochemical cell stack contained within the thin metal foil packaging, and a metal-to-metal welded seal around at least a portion of the perimeter of the thin metal foil packaging. The metal-to-metal welded seal is hermetic or nearly hermetic. Furthermore, the metal-to-metal welded seal is narrow, having a width of less than about 1 mm, and is less than about 5 mm away from the electrochemical cell stack. In some embodiments, the thin metal foil packaging functions not only as a hermetically or near hermetically sealed packaging, but also as either electrode of the cell bonded to the foil packaging.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention relates to a novel class of silver oxyfluoride based electrode materials based on the perovskite structure used in primary and rechargeable electromechanical energy storage systems.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The described invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy, and methods of fabrication thereof.

Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Abstract: The present invention relates to primary and secondary electrochemical energy storage systems, particularly to such systems as battery cells, which use materials that take up and release ions as a means of storing and supplying electrical energy.