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7592101 |
Non-aqueous electrolyte primary battery
A non-aqueous electrolyte primary battery including: a positive electrode including a fluorinated carbon; a negative electrode including a lithium metal; a non-aqueous electrolyte; and a separator,...
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7498369 |
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,...
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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...
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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...
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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...
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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...
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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...
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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...
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6994935 |
Process for producing separator for batteries, the separator for batteries, and alkaline storage batteries using the same
The present invention relates to the separator for batteries wherein the non-woven cloth comprising fibers mainly composed of polyolefin type resin is provided with hydrophilic property on the...
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6955865 |
Graft polymerization, separators, and batteries including the separators
A non-woven sheet of polyolefin fibers having opposed major surfaces is disclosed. Some areas of one or both of the major surfaces are hydrophilic as a consequence of an acrylic graft polymerized...
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6878484 |
Separator for secondary battery and method for producing the same
An object of the present invention is to provide a thin battery separator having an excellent nitrate group trapping performance and a high piercing strength. The inventive separator for a...
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6811927 |
Battery containing a polycarbodiimide polymer
A battery highly inhibited from suffering self-discharge. The battery is characterized by containing a built-in polymer which has in the molecule a carbodiimide unit represented the following...
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6790562 |
Separator for alkaline secondary battery, method for preparing the same alkaline secondary battery
In an alkaline secondary battery provided with a positive electrode, a negative electrode, a separator to be interposed between the positive electrode and the negative electrode, and an alkaline...
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6777129 |
Alkaline storage battery
An alkaline storage battery having excellent self-discharge characteristics even after a number of charge-discharge cycles is provided. The alkaline storage battery is provided with a case and an...
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6743551 |
Alkaline storage battery
The separator 10 a for use in the alkaline storage battery of the invention comprises densely and uniformly formed over the entire separator and entrained from the surface to the back plane of...
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6730404 |
Composite active material and process for the production thereof, electrode and process for the production thereof, and non-aqueous electrolyte battery
The high rate discharge performance and cyclability are improved. A battery having a hich capacity density and excellent cyclability and safety performance can be produced. A composite active...
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6680144 |
Battery separator
A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the...
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6673483 |
Sealed storage cell with an improved recombination device
An aqueous alkaline electrolyte Ni-MH sealed secondary storage cell includes a bundle of electrodes placed in a container and made up of a plurality of negative and positive electrodes. The space...
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6670077 |
Impregnated separator for electrochemical cell and method of making same
A separator for an electrochemical cell and a method of assembling an electrochemical cell are provided. The separator includes a porous paper substrate impregnated and/or coated with a polymer...
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6660433 |
Lithium secondary battery and battery device comprising same
A lithium secondary battery comprises a negative electrode capable of intercalating/deintercalating lithium ion, a positive electrode made of a lithium-containing metal oxide as an active positive...
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6617076 |
Separator for nonaqueous secondary battery and nonaqueous secondary battery using the same
The present invention provides a nonaqueous secondary battery and a separator to be used therein. The separator comprises a polyolefin membrane containing one or more conjugated polyene compounds...
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6586138 |
Freestanding microporous separator including a gel-forming polymer
A freestanding battery separator includes a microporous polymer web with passageways that provide overall fluid permeability. The polymer web preferably contains UHMWPE and a gel-forming polymer...
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6579648 |
Nonaqueous secondary battery
The nonaqueous secondary battery according to the invention uses a separator 10 which is a composite resin film with a reinforcing material layer 11 integrally filled with polyvinylidene...
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6579643 |
Separator having a plasticizer coating for use in electrochemical cell devices
A separator for use in laminated multi-layer electrochemical cell device structures. The devices comprise positive and negative electrode layer members of polymeric matrix composition having the...
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6537696 |
Nonwoven separator for a nickel-metal hydride battery
The preferred embodiment is to a battery separator for a nickel metal hydride (NiMH) battery. The separator includes a wettable, resilient nonwoven web having two spunbond layers sandwiching a melt...
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6537695 |
Non-woven fabric treatment
Non-woven fabrics are disclosed comprising substantially unbonded fibers and vinyl monomers which are capable of reacting with an acid or a base to form a salt directly or indirectly by a reaction...
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6527955 |
Heat-activatable microporous membrane and its uses in batteries
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.,...
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6509118 |
Valve-regulated lead-acid cells and batteries and separators used in such cells and batteries
A valve-regulated lead-acid cell utilizes an absorptive glass mat separator having a glass fiber surface which is modified by treatment with at least one particular polymer, as by treatment with a...
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6506522 |
Battery separator element containing efficiency improving additives
A recombinant battery element of a lead acid battery including a negative plate, a positive plate and a separator having an additive associated with the separator that improves the overall...
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6444367 |
Durable hydrophilic nonwoven mat for rechargable alkaline batteries
A battery separator material comprising a nonwoven web of a wettable fiber matrix, wherein the wettable fiber matrix are thermoplastic polymeric fibers blended with at least one. hydrophilic melt...
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6387565 |
Battery having an adhesive resin layer containing a filler
Conventional batteries are disadvantageous in that a firm outer case must be used to maintain an electrical connection between electrodes, which has been an obstacle to size reduction. Those in...
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6379836 |
Separator paper for alkaline-battery
A separator paper is provided which simultaneously satisfies the requirements to have a high denseness that can prevent internal shortage due to such as the deposition of the zinc oxide dendrite...
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6376125 |
Lithium ion secondary battery and process for producing the same
An object is to provide with good productivity a practical lithium ion secondary battery which secures lightness in weight and safety without using a firm battery case and has reduced internal...
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6364916 |
Method of manufacturing an organic electrolyte electrochemical cell of unitary structure
A method of manufacturing an organic electrolyte electrochemical cell comprising at least one electrochemical couple made up of two electrodes sandwiching a solid film of porous polymer containing...
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6291105 |
Battery separator and method for manufacturing the same and battery
A battery separator and a method for manufacturing the same and a battery using the same. The battery separator is excellent in alkaline retaining property, initial alkaline absorption and durable...
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6287730 |
Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer
The present invention is directed to a hydrophilic polyolefin article comprising a polyolefin article having a coating containing a surfactant and an ethylene vinyl alcohol (EVOH) copolymer.
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6280880 |
Method for surface treatment of fibrous polyphenylene sulfide or polysulfone
A method for surface treatment of a fibrous polyphenylene sulfide or polysulfone is based on the use of a gas mixture of 1 to 5% in volume of elemental fluorine, of nitrogen as carrier gas and of...
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6277514 |
Protective coating for separators for electrochemical cells
This invention pertains to separators for use in electrochemical cells which comprise at least one microporous pseudo-boehmite layer, which separator is in contact with at least one protective...
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6258488 |
Battery separators
A battery (31) having a battery separator (34, 35, 36) which is made from a cellulose film formed from a solution of cellulose in an amine oxide solvent. The separator performs well in alkaline...
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6235432 |
Thin non-protonic electrolytic film, immobilized liquid-film conductor, and polymer cell
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6235430 |
Alkaline storage battery
The present invention employs non-woven fabrics of an olefin resin comprising first filaments having diameters in a range of 3 to 10 μm as a main component and second filaments having diameters in...
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6232014 |
Lithium ion secondary battery and manufacture thereof
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6130008 |
Alkaline storage battery
An alkaline storage battery with improved cycle life and self-discharge characteristics is disclosed. The battery comprises a positive electrode, a negative electrode, a separator and an alkaline...
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6120939 |
Meltblown fiber battery separator
Battery separator comprising a consolidated nonwoven mat of ultrafine polymeric fibers in which at least 10% of said fibers have a diameter less than 1 micron and which mat has an average pore size...
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5962161 |
Recombinant battery separator
A recombinant battery separator pad is made from a mat of meltblown ultrafine polymer fibers, with the fibers being treated with an agent to render them permanently wettable. The fibers include at...
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5952124 |
Rechargeable electrochemical cell with modified manganese oxide positive electrode
A rechargeable battery cell includes an anode with a major portion of active material, a cathode including MnO 2 doped with bismuth, and a separator between the cathode and anode which...
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5902696 |
Separator for nonaqueous electrochemical cells
A combination separator comprising a single layer of a non-woven, polyolefinic cloth superposed with a single layer of a polyolefinic, microporous film for use in an electrochemical cell, is...
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5863972 |
Randomly segmented thermoplastic polyurethanes as matrix for electrochemical analysis of Ca.sup.++ ions
Composition, comprising in homogeneous distribution A) at least one salt containing a lipophilic anion, B) a plasticiser-free thermoplastic randomly segmented polyurethane which is soluble in...
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5807643 |
Nickel-hydrogen secondary battery
A nickel-hydrogen secondary battery comprising, a positive electrode containing nickel hydroxide, a negative electrode containing a hydrogen-absorbing alloy, a separator interposed between the...
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5589302 |
Battery separator and battery containing same
The present invention provides a battery separator comprising (a) a nonwoven web of fibers having a mean diameter of about 15 μm or less and (b) a graft polymerized monomer on the surface of the...
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