| Patent Number |
Title Of Patent |
Date Issued |
| 7608178 |
Active metal electrolyzer |
October 27, 2009 |
| Electro-winning of active metal (e.g., lithium) ions from a variety of sources including industrial waste, and recycled lithium and lithium-ion batteries is accomplished with an electrolyzer having a protected cathode that is stable against aggressive solvents, including water, aqueous |
| 7553573 |
Solid state electrochemical composite |
June 30, 2009 |
| Provided is a composite electrochemical device fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. The invention allows for an electrode wi |
| 7491458 |
Active metal fuel cells |
February 17, 2009 |
| Active metal fuel cells are provided. An active metal fuel cell has a renewable active metal (e.g., lithium) anode and a cathode structure that includes an electronically conductive component (e.g., a porous metal or alloy), an ionically conductive component (e.g., an electrolyte), and a |
| 7482096 |
Alleviation of voltage delay in lithium-liquid depolarizer/electrolyte solvent battery cells |
January 27, 2009 |
| Voltage delay in an active metal anode/liquid cathode battery cell can be significantly reduced or completely alleviated by coating the active metal anode (e.g., Li) surface with a thin layer of an inorganic compound with Li-ion conductivity using chemical treatment of Li surface. Pa |
| 7468120 |
Fluorine separation and generation device |
December 23, 2008 |
| A process and apparatus for the electrolytic separation of fluorine from a mixture of gases is disclosed. Also described is the process and apparatus for the generation of fluorine from fluorine/fluoride containing solids, liquids or gases. |
| 7432017 |
Compositions and methods for protection of active metal anodes and polymer electrolytes |
October 7, 2008 |
| Electrochemical structures with a protective interlayer for prevention of deleterious reactions between an active metal electrode and polymer electrolytes, and methods for their fabrication. The structures may be incorporated in battery cells. The interlayer is capable of protecting an |
| 7390591 |
Ionically conductive membranes for protection of active metal anodes and battery cells |
June 24, 2008 |
| Disclosed are ionically conductive membranes for protection of active metal anodes and methods for their fabrication. The membranes may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the membrane has the desi |
| 7351488 |
Structures and fabrication techniques for solid state electrochemical devices |
April 1, 2008 |
| Porous substrates and associated structures for solid-state electrochemical devices, such as solid-oxide fuel cells (SOFCs), are low-cost, mechanically strong and highly electronically conductive. Some preferred structures have a thin layer of an electrocatalytically active material |
| 7282302 |
Ionically conductive composites for protection of active metal anodes |
October 16, 2007 |
| Disclosed are ionically conductive composites for protection of active metal anodes and methods for their fabrication. The composites may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the properties of diffe |
| 7282296 |
Ionically conductive composites for protection of active metal anodes |
October 16, 2007 |
| Disclosed are ionically conductive composites for protection of active metal anodes and methods for their fabrication. The composites may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the properties of diffe |
| 7282295 |
Protected active metal electrode and battery cell structures with non-aqueous interlayer archite |
October 16, 2007 |
| Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a n |
| 7232626 |
Planar electrochemical device assembly |
June 19, 2007 |
| A pre-fabricated electrochemical device having a dense electrolyte disposed between an anode and a cathode preferably deposited as thin films is bonded to a porous electrically conductive support. A second porous electrically conductive support may be bonded to a counter electrode of |
| 7163713 |
Method for making dense crack free thin films |
January 16, 2007 |
| The process described herein provides a simple and cost effective method for making crack free, high density thin ceramic film. The steps involve depositing a layer of a ceramic material on a porous or dense substrate. The deposited layer is compacted and then the resultant laminate is |
| 7118777 |
Structures and fabrication techniques for solid state electrochemical devices |
October 10, 2006 |
| Low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures provide solid state electrochemical device substrates |
| 7090752 |
Fluorine separation and generation device |
August 15, 2006 |
| A process and apparatus for the electrolytic separation of fluorine from a mixture of gases is disclosed. Also described is the process and apparatus for the generation of fluorine from fluorine/fluoride containing solids, liquids or gases. |
| 7070632 |
Electrochemical device separator structures with barrier layer on non-swelling membrane |
July 4, 2006 |
| Disclosed are electrochemical device separator structures which include a substantially impervious active metal ion conducting barrier layer material, such as an ion conducting glass, is formed on an active metal ion conducting membrane in which elongation due to swelling on contact |
| 6991662 |
Encapsulated alloy electrodes |
January 31, 2006 |
| Disclosed are methods for forming active metal battery alloy electrodes having protective layers ("encapsulated electrodes"). Charged and uncharged encapsulated alloy electrodes and methods for their fabrication are provided. |
| 6979511 |
Structures and fabrication techniques for solid state electrochemical devices |
December 27, 2005 |
| Provided are low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state elec |
| 6955866 |
Coated lithium electrodes |
October 18, 2005 |
| Batteries including a lithium anode stabilized with a metal-lithium alloy and battery cells comprising such anodes are provided. In one embodiment, an electrochemical cell having an anode and a sulfur electrode including at least one of elemental sulfur, lithium sulfide, and a lithium |
| 6921557 |
Process for making dense thin films |
July 26, 2005 |
| Provided are low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state elec |
| 6911280 |
Chemical protection of a lithium surface |
June 28, 2005 |
| Disclosed are compositions and methods for alleviating the problem of reaction of lithium or other alkali or alkaline earth metals with incompatible processing and operating environments by creating a ionically conductive chemical protective layer on the lithium or other reactive met |
| 6887361 |
Method for making thin-film ceramic membrane on non-shrinking continuous or porous substrates by |
May 3, 2005 |
| A disclosed method provides techniques for forming low-cost, mechanically strong, highly electronically conductive porous structures for solid-state electrochemical devices. In particular, a method of forming a ceramic film on a substrate using electrophoretic deposition (EPD) is describ |
| 6846511 |
Method of making a layered composite electrode/electrolyte |
January 25, 2005 |
| An electrode/electrolyte structure is prepared by a plurality of methods. An unsintered (possibly bisque fired) moderately catalytic electronically-conductive or homogeneous mixed ionic electronic conductive electrode material is deposited on a layer composed of a sintered or unsinte |
| 6767662 |
Electrochemical device and process of making |
July 27, 2004 |
| A process of making an electrochemical device comprising providing a trilayer structure comprising an electrode/electrolyte/electrode and simultaneously sintering the trilayer structure. |
| 6740441 |
Metal current collect protected by oxide film |
May 25, 2004 |
| Provided are low-cost, mechanically strong, highly electronically conductive current collects and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state elect |
| 6737197 |
Encapsulated lithium alloy electrodes having barrier layers |
May 18, 2004 |
| A method employing a bonding layer is used to form active metal electrodes having barrier layers. Active metals such as lithium are highly reactive in ambient conditions. The method involves fabricating a lithium electrode or other active metal electrode without depositing the barrier la |
| 6723140 |
Plating metal negative electrodes under protective coatings |
April 20, 2004 |
| A method for forming lithium electrodes having protective layers involves plating lithium between a lithium ion conductive protective layer and a current collector of an "electrode precursor." The electrode precursor is formed by depositing the protective layer on a very smooth surface o |
| 6682842 |
Composite electrode/electrolyte structure |
January 27, 2004 |
| Provided is an electrode fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. Onto this electrode in the green state, a green ionic (e.g., e |
| 6632573 |
Electrolytes with strong oxidizing additives for lithium/sulfur batteries |
October 14, 2003 |
| Disclosed are oxidizer-treated lithium electrodes, battery cells containing such oxidizer-treated lithium electrodes, battery cell electrolytes containing oxidizing additives, and methods of treating lithium electrodes with oxidizing agents and battery cells containing such oxidizer-trea |
| 6605316 |
Structures and fabrication techniques for solid state electrochemical devices |
August 12, 2003 |
| Provided are low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state elec |
| 6537701 |
Coated lithium electrodes |
March 25, 2003 |
| Batteries including a lithium anode stabilized with a metal-lithium alloy and battery cells comprising such anodes are provided. In one embodiment, an electrochemical cell having an anode and a sulfur electrode including at least one of elemental sulfur, lithium sulfide, and a lithium |
| 6458170 |
Method for making thin, flat, dense membranes on porous substrates |
October 1, 2002 |
| A method of fabricating a thin, flat dense membrane on a porous substrate in which the green substrate is selected to have a predetermined shrinkage on firing which matches or is greater than the shrinkage of a thin uniformly applied film on firing. |
| 6432584 |
Method for forming encapsulated lithium electrodes having glass protective layers |
August 13, 2002 |
| A method for fabricating an active metal electrode involves depositing lithium or other active metal electrode on a protective layer. The protective layer is a glassy or amorphous material that conducts ions of the active metal. It may be deposited on a releasable web carrier or other |
| 6413285 |
Layered arrangements of lithium electrodes |
July 2, 2002 |
| A method employing a bonding layer is used to form active metal electrodes having barrier layers. Active metals such as lithium are highly reactive in ambient conditions. The method involves fabricating a lithium electrode or other active metal electrode without depositing the barrier la |
| 6413284 |
Encapsulated lithium alloy electrodes having barrier layers |
July 2, 2002 |
| A method employing a bonding layer is used to form active metal electrodes having barrier layers. Active metals such as lithium are highly reactive in ambient conditions. The method involves fabricating a lithium electrode or other active metal electrode without depositing the barrier la |
| 6402795 |
Plating metal negative electrodes under protective coatings |
June 11, 2002 |
| A method for forming lithium electrodes having protective layers involves plating lithium between a lithium ion conductive protective layer and a current collector of an "electrode precursor." The electrode precursor is formed by depositing the protective layer on a very smooth surface o |
| 6358643 |
Liquid electrolyte lithium-sulfur batteries |
March 19, 2002 |
| A high performance lithium-sulfur battery cell includes the following features: (a) a negative electrode including a metal or an ion of the metal; (b) a positive electrode comprising an electronically conductive material; and (c) a liquid catholyte including a solvent and dissolve el |
| 6248481 |
Overcharge protection systems for rechargeable batteries |
June 19, 2001 |
| Disclosed is an electrochemical device having a shuttle-type redox mechanism for overcharge protection in which the redox reaction is "tuned" with a tuning agent to adjust the potential at which the redox reaction occurs. Such device may be characterized as including the following el |
| 6225002 |
Dioxolane as a proctector for lithium electrodes |
May 1, 2001 |
| Disclosed are dioxolane-treated lithium electrodes, battery cells containing such dioxolane-treated lithium electrodes, battery cell electrolytes containing dioxolane, and methods of treating lithium electrodes with dioxolane and battery cells containing such dioxolane-treated lithiu |
| 6214061 |
Method for forming encapsulated lithium electrodes having glass protective layers |
April 10, 2001 |
| A method for fabricating an active metal electrode involves depositing lithium or other active metal electrode on a protective layer. The protective layer is a glassy or amorphous material that conducts ions of the active metal. It may be deposited on a releasable web carrier or other |
| 6210832 |
Mixed ionic electronic conductor coatings for redox electrodes |
April 3, 2001 |
| Disclosed is a redox electrode for a battery cell that has a coating to mitigate plugging by precipitated discharge products. The coating comprises a mixed ionic electronic conductor (MIEC) which is applied to the surface of a redox electrode. The presence of the MIEC coating allows |
| 6200704 |
High capacity/high discharge rate rechargeable positive electrode |
March 13, 2001 |
| Disclosed is a positive electrode that has a low equivalent weight and high cell voltage and consequently a high specific energy, and a high discharge rate pulse capability. Also disclosed are methods for fabricating active-sulfur-based composite electrodes, and battery cells incorporati |
| 6165644 |
Methods and reagents for enhancing the cycling efficiency of lithium polymer batteries |
December 26, 2000 |
| Batteries including a lithium electrode and a sulfur counter electrode that demonstrate improved cycling efficiencies are described. In one embodiment, an electrochemical cell having a lithium electrode and a sulfur electrode including at least one of elemental sulfur, lithium sulfid |
| 6110236 |
Method of preparing electrodes having evenly distributed component mixtures |
August 29, 2000 |
| A process for forming an electrode involves mixing or homogenizing one or more electrode components in a "fugitive carrier". This mixture is then frozen by dropping the temperature to a level below which the fugitive carrier freezes. This locks the well-mixed electrode components in plac |
| 6030720 |
Liquid electrolyte lithium-sulfur batteries |
February 29, 2000 |
| Disclosed are electrolyte solvents for ambient-temperature lithium-sulfur batteries. The disclosed solvents include at least one ethoxy repeating unit compound of the general formula R.sub.1 (CH.sub.2 CH.sub.2 O).sub.n R.sub.2, where n ranges between 2 and 10 and R.sub.1 and R.sub.2 are |
| 6025094 |
Protective coatings for negative electrodes |
February 15, 2000 |
| Disclosed is an alkali metal negative electrode having a protective layer. Specifically, the disclosed negative electrode includes a glassy or amorphous surface protective layer which conducts alkali metal ions but effectively blocks the alkali metal in the electrode from direct contact |
| 6017651 |
Methods and reagents for enhancing the cycling efficiency of lithium polymer batteries |
January 25, 2000 |
| Batteries including a lithium electrode and a sulfur counter electrode that demonstrate improved cycling efficiencies are described. In one embodiment, an electrochemical cell having a lithium electrode and a sulfur electrode including at least one of elemental sulfur, lithium sulfid |
| 5916710 |
Sodium cobalt bronze batteries and a method for making same |
June 29, 1999 |
| A solid state secondary battery utilizing a low cost, environmentally sound, sodium cobalt bronze electrode. A method is provided for producing same. |
| 5882812 |
Overcharge protection systems for rechargeable batteries |
March 16, 1999 |
| Disclosed is an electrochemical device having a shuttle-type redox mechanism for overcharge protection in which the redox reaction is "tuned" with a tuning agent to adjust the potential at which the redox reaction occurs. Such device may be characterized as including the following el |
| 5558961 |
Secondary cell with orthorhombic alkali metal/manganese oxide phase active cathode material |
September 24, 1996 |
| An alkali metal manganese oxide secondary cell is disclosed which can provide a high rate of discharge, good cycling capabilities, good stability of the cathode material, high specific energy (energy per unit of weight) and high energy density (energy per unit volume). The active mat |
