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| Number | Title | Issue Date |
| 8021789 | Microporous membrane and manufacturing method A microporous membrane having a structure in which its pore size distribution curve obtained by mercury intrusion porosimetry has at least two peaks, which is produced by extruding a combination of a diluent or solvent and a polyolefin resin composition comprising (... | 09/20/2011 |
| 7736810 | Separators for winding-type lithium secondary batteries having gel-type polymer electrolytes and manufacturing method for the same A porous separator for a winding-type lithium secondary battery having a gel-type polymer electrolyte includes a matrix made of polyvinyl chloride, or a matrix made of mixtures of polyvinylchloride and at least one polymer selected from the group consisting of polyv... | 06/15/2010 |
| 7666552 | Lithium secondary battery and separator therefor A lithium secondary battery includes an electrode assembly where a negative plate and a positive plate are rolled in the form of a spiral while interposing a separator with a modulus of elasticity of around 2.0 kgf/mm2 or less in the longitudin... | 02/23/2010 |
| 7563544 | Thermoplastic separator for alkaline electrochemical cells and processes for the production thereof An alkaline electrochemical cell containing a neat multiphase thermoplastic polymer separator is disclosed. The microstructure and composition of the polymer are selected to provide a film that can physically endure the rigors of a cell assembly process and also pro... | 07/21/2009 |
| 7435511 | Nickel-metal hydride storage battery A nickel-metal hydride storage battery having a spirally wound electrode group including: (a) a positive electrode including an active material layer containing nickel hydroxide and a positive electrode core material; (b) a negative electrode including an active mat... | 10/14/2008 |
| 7432014 | Anode and battery The invention provides an anode capable of relaxing stress due to expansion and shrinkage of an anode active material layer associated with charge and discharge, or an anode capable of reducing structural destruction of the anode active material layer and reactivity... | 10/07/2008 |
| 7413685 | Composition and method for making fuel cell collector plates with improved properties A method and composition is disclosed for making conductive flow field separator plates having reduced resistivity, lower weight and lower cost. The plates are made by blending from about 0.5 wt % to about 40 wt %, preferably from about 1 wt % to about 30 wt %, most... | 08/19/2008 |
| 7407728 | Alkaline cell or battery An alkaline cell or battery having at least one positive and one negative electrode which are separated by a separator and which are disposed, along with an alkaline electrolyte, in a housing, the separator being a non-woven fabric, a microporous foil, or a web made... | 08/05/2008 |
| 7399555 | Non-aqueous electrolytic secondary battery A non-aqueous electrolyte secondary battery comprising: an electrode plate assembly; a non-aqueous electrolyte; and an outer jacket accommodating the electrode plate assembly and the non-aqueous electrolyte therein, the electrode plate assembly comprising a positive... | 07/15/2008 |
| 7381500 | Method for preparing a lithium secondary battery comprising a multi-phase separator and lithium secondary battery made using the same A method of preparing a lithium secondary battery including a multi-phase separator having a gelled polymer uniformly impregnated therein, includes surface-treating a porous separator to provide a coated weight of a gelled polymer less than or equal to 20 mg/cm... | 06/03/2008 |
| 7374843 | Polyolefin microporous membrane and method of evaluating the same The invention relates to a microporous membrane, which is provided with high safety even under a condition that the interior temperature of a battery becomes high, and which has high permeability and high mechanical strength at the same time. The polyolefin m... | 05/20/2008 |
| 7335441 | Thin layer electrochemical cell with self-formed separator A method of forming an electrochemical cell is disclosed. The method comprises contacting a negative pole layer and a positive pole layer one with the other or with an optional layer interposed therebetween. The pole layers and the optional layer therebetween are se... | 02/26/2008 |
| 7329623 | Durable hydrophilic nonwoven mat A nonwoven web of a wettable fiber matrix, wherein the wettable fiber matrix are thermoplastic polymeric fibers blended with at least one hydrophilic melt additive. In alternate embodiments, the nonwoven web further includes binder fibers which may be wettable or no... | 02/12/2008 |
| 7323274 | Shutdown separators with improved properties A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weigh... | 01/29/2008 |
| 7323273 | Shutdown separators with improved properties A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weigh... | 01/29/2008 |
| 7318983 | Battery The invention provides a battery achieving excellent battery characteristics by using, as an anode active material, any of metal elements and metalloid elements each of which can form an alloy with a lithium, alloys of these elements, and compounds of these elements... | 01/15/2008 |
| 7311994 | Separator for lithium ion secondary battery and lithium ion secondary battery provided therewith A separator for a lithium ion secondary battery, comprising a porous base material containing polyolefin, and a porous layer containing a vinylidene fluoride resin as a main component provided on at least one surface of the porous base material is excellent in elect... | 12/25/2007 |
| 7267909 | Battery separators containing reactive functional groups A battery separator having a thermal shutdown mechanism and exhibiting excellent mechanical properties and low electrical resistance includes a water-scavenging and/or acid-scavenging material having reactive functional groups that chemically react with water or aci... | 09/11/2007 |
| 7238744 | Ultrahigh molecular weight polyethylene articles and method of manufacture An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, et... | 07/03/2007 |
| 7226675 | Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a fuel cell and a high power nickel metal hydride battery pack A very low emission hybrid electric vehicle incorporating an integrated propulsion system which includes a fuel cell, a metal hydride hydrogen storage unit, an electric motor, high specific power, high energy density nickel-metal hydride (NiMH) batteries, and prefer... | 06/05/2007 |
| 7214444 | Melt blown battery separator Battery separators made of a wettable, uniform mat of melt blown fibers. The melt blown fibers are thermally bonded to one another. These fibers are made of a thermoplastic material. The fibers have a diameter in the range of 0.1 to 13 microns (μ) and lengths great... | 05/08/2007 |
| 7214450 | Solid electrolyte battery A solid electrolyte battery having improved energy density and safety, the solid electrolyte battery incorporating a positive electrode; a negative electrode disposed opposite to the positive electrode; a separator disposed between the positive electrode and the neg... | 05/08/2007 |
| 7160968 | Phosphoric acid group-containing polymer electrolyte (composite) membrane and its production method The invention relates to solid polyelectrolyte membranes and processes for their production. As solid polyelectrolyte materials, there have been known fluoropolymers which have perfluoroskeletons and side chains bearing sulfonic acid groups and heat-resistant resins... | 01/09/2007 |
| 7138207 | Non-aqueous electrolyte secondary cell A non-aqueous electrolyte secondary cell which achieves satisfactory low temperature characteristics and high safety against overcharging in combination. The cell includes a lithium-containing cathode, an anode capable of doping and undoping lithium, a non-aqueous e... | 11/21/2006 |
| 7125431 | Method for adhesion of wound electrodes or electrode lamination for use in a lithium-ion secondary battery A method for adhesion of wound electrodes or electrode lamination for use in a lithium-ion secondary battery, comprising acts of dissolving a polymer applied on electrode sheets in a selected solvent; applying the solvent containing polymer on surfaces of the electr... | 10/24/2006 |
| 7118694 | Compositions containing silicates and ion-conducting films containing the same A mixture Ia which comprises a composition IIa consisting of a) 1 to 95% by weight of a solid III, preferably a basic solid III, having a primary particle size of 5 nm to 20 microns, and b) 5 to 99% by weight of a polymeric mass IV obtainab... | 10/10/2006 |
| 7105253 | Method of and apparatus for manufacturing lithium secondary cell A method of manufacturing a lithium secondary cell capable of preventing an active material layer from oxidation and moisture absorption is obtained. This method of manufacturing a lithium secondary cell comprises steps of forming an active material layer on a colle... | 09/12/2006 |
| 7094497 | Separator for lithium ion secondary battery A separator, used for a lithium ion secondary battery that produces electromotive force by lithium doping/dedoping, which is composed of a porous film comprising an organic polymer (component A) which can swell in an electrolyte solution to retain it, surrounding a ... | 08/22/2006 |
| 7081321 | Separator for metal halogen cell A separator for metal/halogen batteries is provided which is excellent in thermal resistance, resistance to stress-cracking and electric properties. A separator for metal/halogen batteries comprising a polyolefin having a viscosity average molecular weight of not le... | 07/25/2006 |
| 7070884 | Separator with improved barrier performance The present invention is directed to a nonwoven composite fabric for use on batteries or fuel cells comprising one or more layers of fine denier spunbond filaments and at least one layer of barrier material, wherein said nonwoven composite fabric has an improved bar... | 07/04/2006 |
| 7063917 | Laminated battery separator material A nonwoven material having a laminated construction and including a first layer of nonwoven fibers defining a first surface of the material; a second layer of nonwoven fibers defining the opposite surface of the material; and a third layer of nonwoven fibers located... | 06/20/2006 |
| 7060387 | Secondary cell with improved electrode jelly-roll structure A secondary cell capable of ensuring thermal and mechanical stabilities required for a high-capacity cell with a simple structure is provided. The secondary cell includes: a can; and an electrode jelly-roll wound with two different electrodes and a separator interpo... | 06/13/2006 |
| 7056620 | Thin film battery and method of manufacture A battery comprises a substrate having a cathode with a lower surface contacting the substrate and an opposing upper surface. A cathode current collector comprises conducting lines that contact the upper surface of the cathode. An electrolyte at least partially exte... | 06/06/2006 |
| 7049361 | Polyolefin series resinfilm, composition for preparing the same, process for preparing the composition for preparing the same, and apparatus for preparing the same The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density ρ1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700–6000 and a density ρ2 (g/cm3), the polyolefin an... | 05/23/2006 |
| 7039990 | Zoned stretching of a web Apparatus and methods for stretching one or more zones of a web are disclosed. Webs including stretched or activated zones are also disclosed. Each of the zones in the web is stretched in the cross-web direction, i.e., the direction transverse to the down-web direct... | 05/09/2006 |
| 7033704 | Alkaline storage battery having a separator with pores An alkaline storage battery comprises: a positive electrode plate; a negative electrode plate; a separator; and an alkaline electrolyte retained by the positive electrode plate, the negative electrode plate, and the separator, wherein the separator has a large numbe... | 04/25/2006 |
| 7022431 | Thin layer electrochemical cell with self-formed separator A method of forming an electrochemical cell is disclosed. The method comprises contacting a negative pole layer and a positive pole layer one with the other or with an optional layer interposed therebetween. The pole layers and the optional layer therebetween are se... | 04/04/2006 |
| 7022434 | Nickel-metal hydride storage battery and production method thereof In order to obtain a nickel-metal hydride storage battery having a long cycle life and a low self-discharge rate, in a nickel-metal hydride storage battery comprising: a positive electrode containing nickel hydroxide; a negative electrode containing a hydrogen stora... | 04/04/2006 |
| 7014948 | Electrochemical device using multicomponent composite membrane film The present invention provides a electrochemical element, wherein a multi-component composite film comprising a) polymer support layer film and b) a porous gellable polymer layer which is formed on either or both sides of the support layer film of a), wherein the su... | 03/21/2006 |
| 6998193 | Microporous membrane and its uses thereof A novel microporous membrane comprising a hot-melt adhesive and an engineering plastics, the methods of preparing such microporous membrane and the uses of the microporous membrane in, e.g., batteries, super capacitors, fuel cells, sensors, electrochromic devices or... | 02/14/2006 |
