Rutgers, the State University of New Jersey

Bell Communications Research, Inc.

Telcordia Technologies, Inc.

Other

Mphase Technologies, Inc.

Amatucci, Glenn G.

Halajko, Anna

Badway, Fadwa

Plitz, Irene

Glenn G Amatucci

Jean-Marie Tarascon

Fadwa Badway

Linda Wu Sung

Nathalie Pereira

Anna B Halajko

Anthony Ferrer

Irene Plitz

Aurelien DuPasquier

Mathieu Bervas

Victor Alexander Lifton

Steve Simon

Matthew Y Lu

Wei Tong

Alexandra Blyr

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. A method for making the foregoing electrochemical cell is also provided and involves using laser energy the metal-to-metal welded seal, wherein the laser energy is applied to the foil at high speed using a scanning laser.

Electrochemical cell having thin metal foil packaging and a method for making same

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.

A current collector for use in an electrochemical cell is provided. The current collector comprises: a reticulated core comprising a polymer and having continuous porosity; a first reticulated surface; a second reticulated surface opposite said first reticulated surface; and a thin metal film disposed on at least one of said first and second reticulated surfaces, wherein said current collector has continuous porosity. A high temperature resistant polymer is preferred for the reticulated core where the current collector may be exposed to high temperatures during production or use. The continuous porosity of the reticulated coreand the current collector allows for passage of electrolyte and ions, as necessary for operation of an electrochemical device that includes the current collector. Various methods for making the current collector are also provided, including an exemplary embodiment in which a reticulated core comprising a polymer is provided and a thin metal film is deposited on at least one of the first or second reticulated surface of the reticulated core to form the current collector. An electrode assembly which includes the current collector, as well as an electrochemical cell which includes at least one current collector, are also provided.

Electrochemical devices and methods for making same

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.

Electrode material for lithium batteries

The described invention relates to the use of parylene and composites of parylene as a flexible, sealable, and near hermetic barrier packaging material for nonaqueous electrochemical cells. Additionally, the invention relates to the technique of sealing of battery packaging material through the use of ultrasonic energy, and to the use of a low melting temperature inorganic barrier, which is predisposed between higher melting temperature polymer layers, that can be sealed to form a truly hermetic barrier at the interface.

Packaging material for electrochemical cells

The described invention provides a method of patterning a thin film deposited on a substrate comprising applying a moving focused field of thermal energy to the thin film deposited on the substrate; and dewetting the thin film from the substrate. Dewetting the thin film from the substrate is characterized by a negative space of a desired design; and displacement of the thin film into adjacent structures, thereby accumulating thin film in the adjacent structures.

Patterned thin films by thermally induced mass displacement

The described invention provides compositions related to an electronically insulating amorphous or nanocrystalline mixed ionic conductor composition comprising a metal fluoride composite to which an electrical potential is applied to form 1) a negative electrode, and 2) a positive electrode, wherein the negative electrode and positive electrode are formed in situ.

Metal fluoride compositions for self formed batteries

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.

Electrochemically self assembled batteries

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.

Iron oxyfluoride electrodes for electrochemical energy storage

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.

Electrochemical devices and methods of fabrication

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.

Metal fluoride and phosphate nanocomposites as electrode materials

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.

Copper fluoride based nanocomposites as electrode materials

The described invention provides self-forming compositions as positive electrode materials. The described invention further provides electrode compositions related to an electrochemical energy storage cell comprising a metal, a glass former and lithium fluoride.

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.

Growing community of inventors

Peapack, NJ, United States of America

Glenn G Amatucci