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: 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 described invention provides a packaged electrochemical device comprising an electrochemical battery, further comprising at least one electrochemical cell stack and a barrier packaging material. The present invention further provides a method of fabricating the packaged electrochemical device. The present invention further provides a flexible multifunctional liquid-based thermogalvanic cell that converts and stores electricity derived from low grade temperature differentials that exist in ubiquitous scenarios.

Abstract: The present invention relates to in situ formation of a single-layered electrochemical cell comprising a full tri-layer battery structure containing a discrete positive electrode, solid state electrolyte, and negative electrode from self-assembled nanocomposites. The single layered cell makes it possible to fabricate cells in three dimensions resulting in a very high energy density power source within very small and/or complex dimensions.

Abstract: The described invention provides a packaged electrochemical device comprising an electrochemical battery, further comprising at least one electrochemical cell stack and a barrier packaging material. The present invention further provides a method of fabricating the packaged electrochemical device. The present invention further provides a flexible multifunctional liquid-based thermogalvanic cell that converts and stores electricity derived from low grade temperature differentials that exist in ubiquitous scenarios.

Abstract: The described invention provides a packaged electrochemical device comprising an electrochemical battery, further comprising at least one electrochemical cell stack and a barrier packaging material. The present invention further provides a method of fabricating the packaged electrochemical device. The present invention further provides a flexible multifunctional liquid-based thermogalvanic cell that converts and stores electricity derived from low grade temperature differentials that exist in ubiquitous scenarios.

Abstract: The present invention relates to in situ formation of a single-layered electrochemical cell comprising a full tri-layer battery structure containing a discrete positive electrode, solid state electrolyte, and negative electrode from self-assembled nanocomposites. The single layered cell makes it possible to fabricate cells in three dimensions resulting in a very high energy density power source within very small and/or complex dimensions.