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5888667 |
Separator for jelly-roll type electrode
The unnecessary portion of the separator which prevents the short-circuit between the cathode and the anode In the center of a cylindrical cell is cut off using cutting apparatus or laser beam to...
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5888673 |
Organic electrolyte cell
An organic electrolyte cell comprising an organic electrolyte and an anode and/or a cathode of a carbonaceous material of a heat-treated material of an aromatic condensation polymer having a...
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5885309 |
Method of manufacturing an electrochemical cell
In order to improve the electrical contact between electrode (1) and current collector (13) in a fuel cell containing a liquid carbonate (10) as the electrolyte it is proposed that between the...
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5882815 |
Spiral rolled electrode assembly having a serrated center pin
A spiral rolled non-aqueous electrochemical cell using a serrated segment on at least one end of the flash line of a hollow center pin disposed in the center of a spiral rolled electrode assembly...
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5873915 |
Electrolytic membrane and process for its photo-crosslinking on a cathodic membrane
Electrolytic membrane for light rechargeable batteries essentially consisting of: 1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the...
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5869205 |
Electrochemical cell having multiple anode compartments
An electrochemical cell is provided having a first electrode, such as a cathode, and a plurality of second electrodes, such as anodes, provided in a cell container. A plurality of cavities are...
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5865874 |
Hydrogen storage alloy
The surface of material containing a hydrogen storage alloy are treated with an organometallic compound to provide the alloy with corrosion resistance.
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5865859 |
Method of forming batteries with printed cathode layers
In one aspect, a method of making a battery includes fusing an alkali metal onto a patterned conductive layer. In another aspect, a method of forming a battery includes: a) providing a cathode base...
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5863673 |
Porous electrode substrate for an electrochemical fuel cell
A porous electrode substrate for an electrochemical fuel cell comprises at least one preformed web having low or poor electrical conductivity. The web contains an electrically conductive filler. A...
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5858573 |
Chemical overcharge protection of lithium and lithium-ion secondary batteries
This invention features the use of redox reagents, dissolved in non-aqueous electrolytes, to provide overcharge protection for cells having lithium metal or lithium-ion negative electrodes...
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5856042 |
Electrochemical cells using a polymer electrolyte
A cathode is comprised of a major amount of active cathode material and a binding amount of an ionically nonconductive prepolymeric composition. Polymer electrolyte electrochemical cells can be...
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5856044 |
High capacity electrode paste and process for fabrication
The present invention is directed to a high capacity electrode paste and process for the fabrication of same. The resultant paste has a plurality of electrochemically active particles dispersed in...
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5851244 |
methods of forming thin profile batteries and methods of providing sealing gaskets between battery terminal housing members
A method of forming a button-type battery includes: a) positioning first and second terminal housing members in facing juxtaposition to one another, and providing an anode, a cathode and an...
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5849044 |
Method of forming thin profile batteries
A method of forming a button-type battery includes: a) providing a sheet of cathode material bonded to solid electrolyte material; b) cutting the cathode material and solid electrolyte material...
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5846673 |
Additive to stabilize electrochemical cell
The present invention provides a novel composition and method for preventing decomposition of one or more electrochemical cell components comprising an electrode having an active material, and an...
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5843372 |
Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery
A hydrogen-absorbing alloy for battery according to the present invention comprises an alloy having the composition represented by a general formula A Ni a Mn b M c where, A is at least one...
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5840371 |
Treatment for improved conductivity of collector-electrode interface in laminated lithium-ion rechargeable batteries
A coating of a vinylidene fluoride polymer on a metal foil is heated at about 350° C. to 450° C. in a non-oxidizing atmosphere of inert gas to provide a rechargeable battery current collector...
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5824120 |
Electrically conductive adhesion promoters for current collectors
A method of preparing an electrochemical cell wherein the composite electrode material adheres to the metal current collector to create good electrical contact is provided. The electrode/current...
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5820335 |
Apparatus for collecting plates
A method and an apparatus for collecting plates from two rows of plates travelling side-by-side on a moving conveyor comprising inverting plates sequentially in one row of plates and merging said...
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5814108 |
Method for manufacturing nickel-metal-hydride battery
In a method according to the present invention for manufacturing a nickel-metal-hydride battery, a positive electrode including nickel hydroxide, a negative electrode including a hydrogen occlusion...
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5811207 |
Charge exchange body with large active surface and a method for manufacture thereof
The invention relates to a charge exchange body with a large active surface as well as the method for its manufacture. The porous supporting structure of the charge exchange body is made of...
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5811206 |
Feedthrough pin insulator, assembly and method for electrochemical cell
A feedthrough pin insulator and corresponding assembly for an electrochemical cell powering an implantable medical device are described herein. The feedthrough pin insulator electrically insulates...
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5807645 |
Discharge promoter mixture for reducing cell swelling in alkali metal electrochemical cells
An electrode comprising acetylene black or carbon black carbonaceous diluent having a surface area less than about 100 m 2 /gram mixed with graphite and a charge transfer active material to...
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5803935 |
Device for conveying and sectioning of separator strip
A device for conveying and sectioning of separator strip in devices for producing pockets for battery plates with a conveyor means which conveys the separator strip to a device for dividing the...
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5803933 |
Process for the prodcution of prismatic alkaline accumulator cells
A process for the production of prismatic alkaline accumulator cells of rectangular cross-section, wherein firstly an electrode unit comprising positive and negative electrodes with interposed...
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5803934 |
Method of producing an electrode layer on a solid oxide electrolyte of a solid state fuel cell
Vanadium doping has been found to increase the sinterability of La x Ca y CrO 3 (x+y=1) while retaining its high temperature electrical and chemical properties. Specimens of La x Ca y CrO 3 ...
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5800947 |
Gastight, sealed alkaline storage battery in the form of a button cell
A Ni/Cd or Ni/hydride storage battery of the button cell type has a positive electrode tablet based on a nickel hydroxide powder having an active mass comprised of spherical particles with a high...
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5791041 |
Device for producing battery electrodes and method for producing the same
Superimposing strip layers including a positive electrode strip and a negative electrode strip, which are put into layers together with a separator strip which is put between the electrode strips,...
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5780182 |
Propylene carbonate based electrolyte for lithium ion electrochemical cell
Non-aqueous solid electrochemical cells with improved performance can be fabricated by employing intercalation based carbon anodes comprising graphite, coke, or mixtures thereof, and an electrolyte...
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5776208 |
Apparatus and method for assembling battery
An outer casing and a center shaft of an electrode body are so disposed unparallel as to oppose each other by a swing mechanism, a side surface portion of the electrode body is brought into contact...
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5776207 |
Lead acid storage battery and method for making same
The invention provides a method for making a thin strap in a stable molten state in producing a plate group for a lead acid storage battery by integrally welding lugs of a plurality of plates of...
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5772702 |
Method of preparing electrochemical cells
A method of fabricating electrochemical cells wherein precursors thereof can be stored for extended periods of time following extraction of plasticizer therefrom to form porous structures in the...
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5763112 |
Method and structure for attaching a battery to an electrical device
In accordance with this invention, a novel stick-on peel-off fastener, comprising one or more conductive sticky elements, sandwiched between one or more terminals of a first object such as an...
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5755831 |
Method of forming a button-type battery and a button-type battery with improved separator construction
A method of forming a button-type battery includes, a) providing a conductive first terminal housing member, a conductive second terminal housing member, an anode, and a cathode; b) providing an...
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5756229 |
Electrochemical cell having mechanical shock tolerance
A spirally-wound electrochemical cell having a resilient member such as a resilient pad or a wave spring disposed between the spirally-wound electrode and separator assembly and at least one of the...
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5753388 |
Process for prelithiation of carbon based anodes for lithium ion electrochemical cells
A method of increasing the amount of alkali metal that is available during charge/discharge of an electrochemical cell that employs carbon based intercalation anodes is provided. The method...
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5752987 |
Method for producing improved electrolyte-retention bipolar cells and batteries
Method for producing an improved rechargeable battery, containing a plurality of stacked, nested bipolar cells, in which each bipolar cell is formed by inserting into a bipolar cup a porous...
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5746780 |
Method of manufacturing a battery containing a non-circular spiral electrode unit
A method of manufacturing a battery containing a non-circular spiral electrode unit forms a true circular or elliptical cylindrical electrode unit by winding positive and negative electrode plates...
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5741612 |
Electrode plate for an electrochemical cell and having a metal foam type support, and a method of manufacturing such an electrode plate
An electrode plate including an active portion pasted with active material and a plate head including a connection tab. The plate head is constituted by the same metal foam as the plate support,...
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5738690 |
Method of filling battery cell
An electric vehicle cell featuring internal pressure relief and spring disengagement devices which vent various internal pressures to atmosphere to prevent cell bulging or explosion and which also...
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5738691 |
Ultrasonic extraction of plasticizer from electrochemical cells
A method for removing plasticizers such dibutyl phthalate from the anode, cathode, and polymeric matrix components of an electrochemical cell precursor using an extraction solvent and ultrasound...
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5735914 |
Method for forming battery constructions
In one aspect, a method of making a battery includes fusing an alkali metal onto a patterned conductive layer. In another aspect, a method of forming a battery includes: a) providing a cathode base...
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5735913 |
Nickel hydrogen storage cell
The present invention provides a nickel hydrogen storage cell including negative electrodes and positive electrodes in which the electrochemically active material containing a majority of nickel...
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5733680 |
Method for making hydride electrodes and hydride batteries suitable for various temperatures
This invention provides a method to make a hydrogen storage hydride electrode and a hydride battery, particularly a sealed type, suitable for various temperatures. The battery, according to this...
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5728181 |
Electrodes for electrochemical cells and method of making same
An electrochemical cell is provided with a first and second electrode assemblies (10) (11), and an electrolyte (15) disposed therebetween. The electrodes may either be of the same or different...
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5728482 |
Secondary battery and method for manufacturing the same
In a secondary battery including at least an anode, a cathode, an electrolyte and a battery housing, a magnetic-field generation unit for generating magnetic lines of force, orthogonal to an...
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5724721 |
Electrode mask application process for forming an electrolytic cell
The present invention is directed to an electrode mask for use in an electrolytic cell, and an associated process for fabricating such a cell with an electrode mask. The electrode mask is applied...
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5721068 |
Electrochemical cell, gelled anode, and coated current collector therefor
An electrochemical cell having a negative current collector coated with an alloy of bismuth and tin maintains acceptable performance level and is protected from failure due to vibration. Improved...
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5720780 |
Film forming method for lithium ion rechargeable batteries
A novel processing method provides a separator or electrode film demonstrating good physical properties and excellent conductive properties. Specifically, a binder of a suitable polymer, such as a...
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5716729 |
Electrochemical cell
An electrochemical cell has a cathode material formed into a pellet shape which expands as the cell is discharged. A cathode current collector circumferentially surrounds the cathode pellet and is...
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