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8124261 |
Process for recycling components of a PEM fuel cell membrane electrode assembly
The membrane electrode assembly (MEA) of a PEM fuel cell can be recycled by contacting the MEA with a lower alkyl alcohol solvent which separates the membrane from the anode and cathode layers of...
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8067107 |
System and method for processing an end-of-life or reduced performance energy storage and/or conversion device using a supercritical fluid
A method of refurbishing a lithium-containing energy storage and/or conversion device is disclosed, wherein the energy storage and/or conversion device includes electrodes and an electrolyte, and...
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8021772 |
Preservation assembly of polymer electrolyte fuel cell stack
A preservation assembly of a polymer electrolyte fuel cell stack is provided. The assembly includes an uninstalled polymer electrolyte fuel cell stack and sealing units. The uninstalled polymer...
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8003239 |
Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack
A method of preserving a PEFC stack of the present invention is a method of preserving a PEFC stack that is provided with an oxidizing agent passage having an inlet and an outlet and extending...
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7981825 |
Fuel cell catalyst regeneration
Systems and methods that facilitate operating proton exchange membrane (PEM) fuel cells are provided. The methods can involve contacting a reducing agent comprising a mixture of hydrogen and...
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7964299 |
Method of recycling a battery
A method of the present invention is directed to recycling a battery that includes a plurality of lithium cells removable from one another. The battery is tested to measure internal resistance of...
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7875395 |
Nonaqueous electrolytic cell and its manufacturing method
A nonaqueous electrolytic cell manufacturing method is characterized in that a nonaqueous electrolyte containing vinylene carbonate is used, a coating on the surface of the negative electrode is...
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7858216 |
System and method for removing an electrolyte from an energy storage and/or conversion device using a supercritical fluid
A method of recycling a lithium-containing energy storage device including an electrolyte is provided. The method includes placing the storage device in an extraction vessel, sealing the extraction...
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7833646 |
Method of and apparatus for dismantling and storage of objects comprising alkali metals, such as alkali metal containing batteries
There is disclosed a method of and an arrangement for dismantling and storage of objects comprising alkali metal containing substances, in particular lithium containing batteries, in the presence...
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7820317 |
Method for the mixed recycling of lithium-based anode batteries and cells
The invention relates to a method for treating all types of lithium anode cells and batteries by means of a hydrometallurgical process at room temperature. The treatment method enables cells and...
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7785729 |
Battery pack and battery pack producing method
A battery pack capable of sufficiently exhibiting performance of each secondary battery constituting the battery pack and its producing method are provided. The battery pack producing method of the...
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7785561 |
Recovery of high purity PbO
A process for producing high purity lead oxide from impure lead compounds particularly from waste lead battery paste which includes an oxidation-reduction step. The process results in a reduction...
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7772452 |
Process for recovery of the silica present in the separators between the elements of lead-acid batteries
A process for recovery of the silica present in the separators located between the elements of lead-acid batteries characterized in that it comprises the following operations: a) washing the heavy...
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7754371 |
Fuel cell disassembly method
Respective heaters 21 through 24 receive power supply and start heating. The heaters 21 through 24 keep heating sealing layers 8 to or over a softening temperature at which the sealing layers 8 are...
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7749641 |
Secondary lithium ion cell or battery, and protecting circuit, electronic device, and charging device of the same
The present invention provides a new method for improving capacity, average operating voltage and specific energy of a secondary lithium ion cell or battery. This method is achieved by means of...
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7745026 |
Direct carbon fueled solid oxide fuel cell or high temperature battery
A direct carbon fuel electrochemical device and method for generating electricity. The apparatus includes a solid oxide electrolyte having an anode side and a cathode side. Carbon and at least one...
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7718305 |
Rechargeable alkaline manganese cell with cathode consistency compensation
In an improved rechargeable alkaline manganese cell that has a manganese dioxide cathode comprising pellets formed by pressing a cathode powder blend comprising a hygroscopic additive for...
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7678484 |
Electrochemical device and methods for energy conversion
The present invention relates to an electrochemical device. The device features an anode constructed of materials such that the device can be chemically recharged. In addition, the device is...
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7592094 |
Device, system and method for improving efficiency and preventing degradation of energy storage devices
Disclosed herein is a method and related device for improving energy performance and substantially preventing degradation of a chemical-to-electrical energy conversion process of an energy storage...
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7582375 |
Method for cutting solid oxide fuel cell elements
A method for severing a solid-oxide fuel cell bi-layer element including a structural anode and an electrolyte layer, comprising the steps of orienting the bi-layer element such that the surface...
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7507496 |
Process for recovering lead oxides from exhausted batteries
A process for recovering lead oxides from the spent paste of exhausted lead acid batteries. The process provides heating the spent paste with an alkali hydroxide solution at elevated temperatures...
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7482081 |
Battery system with in-situ and on-time continuous regeneration of the electrodes
The battery system of this invention continuously regenerates the electrodes of the battery in-situ and on-time as the electrodes are consumed during discharge, which concurrently generate electric...
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7374839 |
Method and apparatus for dissolving crystals
A method is described for a dissolving crystals formed in a side reaction to an oxidation-reduction reaction. A low frequency substantially square wave signal less than 10 kilohertz is applied...
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7294428 |
Method for reusing current collectors/distributors of solid polymer electrolyte fuel cell stacks
The method for reusing current collectors/distributors is employed in an electrochemical generator (1, 20) comprising a multiplicity of elementary cells (2, 21) assembled in a filter-press...
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7248920 |
Apparatus and method for exercising a battery for an implantable medical device
A method and apparatus exercise a battery of an implantable medical device by determining whether a film is disposed on a portion of an electrode of a battery, discharging the battery a sufficient...
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7235326 |
Method and device for judging the condition of secondary batteries and method for regenerating secondary batteries
The reducing treatment of the negative electrode of which the battery capacity decreases slightly and the internal resistance increases slightly, does not affect the battery performance....
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7198865 |
System and method for removing an electrolyte from an energy storage and/or conversion device using a supercritical fluid
A system and method of removing an electrolyte from energy storage and conversion devices using a supercritical fluid are provided. The method includes placing a selected device in a container,...
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7192564 |
Method for recycling spent lithium metal polymer rechargeable batteries and related materials
The method relates to a pyrometallurgical and hydrometallurgical process for the recovery and recycling of lithium and vanadium compounds from a material comprising spent rechargeable lithium...
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7147972 |
Method and apparatus for achieving prolonged battery life
A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment...
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7078122 |
High efficiency process for treating mixed metal waste
A process for rendering hazardous materials present in multi-element waste non-hazardous, and for recovering valuable components of said waste, particularly metals, comprising contacting the waste...
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7008719 |
Battery leakage containment system
A leakage containment system for storage batteries supported on a rack. Plural, generally rectangular pans are interconnected to each other and are each provided with at least one end wall having a...
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6936371 |
Method for recycling battery pack
A method for recycling a battery pack is provided that enables a degraded battery pack to be replaced at a low cost while maintaining the advantages of a conventional sealed-type nickel-metal...
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6901946 |
Modular spill containment system and method
A battery spill containment system and method that contain leaks and spills from batteries. The system neutralizes and absorbs leaks and spills to prevent the spills from spreading. The system may...
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6844103 |
Apparatus and method of recovering lithium cobalt oxide from spent lithium batteries
An apparatus and method is provided for recovering lithium cobalt oxide from spent lithium batteries. The method of recovering lithium cobalt oxide comprises the steps of: separating the cathodes...
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6841294 |
Electrolyte rebalancing system
A process for rebalancing the electrolyte system in a regenerative fuel cell using a sulfide/polysulfide reaction in one half of the cell and a bromine/bromide reaction in the other half of the...
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6838504 |
Integrated fixation systems
The invention provides polymeric matrices and films comprising fixation reagents that are capable of reacting with solubilized metals to form less soluble metal compounds. The fixation reagenst may...
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6767665 |
Method for producing molten salts with an extruder and use of the molten salts
The invention relates to a method for producing molten salts and their mixings, using an extruder. The starting materials are melted and reacted and the products of the reaction are then guided via...
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6730428 |
Method of recycling lead-acid storage battery
The lead sulfate (PbSO4) deposited on the surface of the positive electrode 18 or negative electrode 20 is reduced owing to the flow of the pulsating direct current from the positive electrode 18...
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6686086 |
Battery reclamation system
A reclamation system is used for mercury-zinc and mercury-cadmium battery disassembly. The mercury-zinc/mercury-cadmium reclamation system has a cooling station, a cracking station, a disassembly...
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6635379 |
Battery sealing inspection method
A battery which has undergone initial charging and discharging is placed inside a sealed vessel, which is evacuated by a vacuum pump. After this evacuated state has been maintained for a while, the...
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6524737 |
Method for crushing cell
This invention provides a safe and efficient method of dismantling used lithium ion batteries. More specifically, the plastic cases which protect sealed battery cells are removed from the system in...
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6511639 |
Process for recycling negative-electrode materials from spent lithium batteries
A process for recycling electrode materials from spent lithium batteries in which negative-electrode materials from the lithium/transition-metal mixed oxide class of compounds from discharged,...
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6494926 |
Fuel cell separator and production method thereof
A fuel cell separator made of conductive material and resin wherein the conducive material is recycled from waste of fuel cell separators. The fuel cell separator consisting of conductive material...
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6447669 |
Recycling of galvanic cells
Lithium ion cells in which the cathode contains a particulate insertion material and a binder are cut open in a dry, inert atmosphere (10). The cell components are treated with a first organic...
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6447758 |
Cationic antibacterial dentifrice exhibiting superior foaming properties
A dual component antiplaque oral composition having superior foaming properties in which a first component contains a cationic antibacterial agent and the second component contains a anionic...
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6444363 |
Method of making a nickel hydroxide material
A process for making a positive battery electrode material using a secondary metal. The secondary metal is preferably treated using an non-electrolytic process and formed into an active, positive...
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6432580 |
Method of making a nickel hydroxide material
A process for making a nickel hydroxide material without the necessity of a preamine reactor. The process includes the steps of providing a metal and forming the metal into an active positive...
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6329096 |
Process and apparatus for recovering components of sealed type battery
A recovering process for recovering the constituent components of a sealed type battery comprising at least a cathode, an anode and an electrolyte sealed in a battery housing, characterized in that...
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6270916 |
Complete discharge device for lithium battery
A method and apparatus for completely discharging a LiSO2 battery which is not prone to self-activation and which does not require special tools for activation. In the present invention, as switch...
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6261712 |
Method of reclaiming cathodic active material of lithium ion secondary battery
Disclosed is a method of reclaiming a cathodic active material of lithium ion secondary batteries. The lithium ion secondary battery is broken and the casing and the content are separated to remove...
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