Abstract: An electrochemical device having an anode electrode, a cathode electrode, and an electrolyte. At least one of the anode electrode and the cathode electrode is provided with a substantially uniform superficial relief pattern formed by a plurality of substantially uniform projections and has an electrical conductivity gradient between peaks of the projections and valleys between the projections.

Abstract: Disclosed are an electrode assembly, a method of manufacturing the same, and a secondary battery including the same. The electrode assembly includes a first electrode coated with a first active material, a second electrode coated with a second active material, and a separator between the first and second electrodes. The first and second electrodes and the separator are wound into a jelly-roll. At least one of the first and second electrodes includes a non-coated portion where an active material is not coated on a roll-starting end or a roll-finishing end of the at least one of the first and second electrodes, the non-coated portion is at a region of a side surface of the at least one electrode, and the region having the non-coated portion does not face an electrode having a different polarity from the at least one of the first and second electrodes with the separator therebetween.

Abstract: The present invention relates to an equalizing electrode plate with insulated split-flow conductive structure, which is a specifically installed insulated split-flow conductive structure with internal conductive body coated with insulator; one end of the insulated split-flow conductive structure connects to the electric energy input/output terminal of the electrode plate, and another end connects to the electrode plate area farther away from the electric energy input/output terminal and/or with larger impedance in the electrode plate; thus the dedicated insulated split-flow conductive structure connects with the electric energy input/output terminal to specifically transmit the electric energy therebetween.

Abstract: An active material including a metal oxide represented by the following formula (1): LixM1aM2bTiOz??(1) where M1 represents at least one element selected from the group consisting of Zr, Ge, Si and Al, M2 represents at least one element selected from the group consisting of Cr, Mn, Fe, Ni and Sn, Ti has an oxidation number of +4, and x, a, b and z satisfy the following requirements: 0.01?x?0.2, 0.005?a?0.1, 0.005?b?0.1 and 2?z?2.5.

Abstract: A method and apparatus for making thin-film batteries having composite multi-layered electrolytes with soft electrolyte between hard electrolyte covering the negative and/or positive electrode, and the resulting batteries. In some embodiments, foil-core cathode sheets each having a cathode material (e.g., LiCoO2) covered by a hard electrolyte on both sides, and foil-core anode sheets having an anode material (e.g., lithium metal) covered by a hard electrolyte on both sides, are laminated using a soft (e.g., polymer gel) electrolyte sandwiched between alternating cathode and anode sheets. A hard glass-like electrolyte layer obtains a smooth hard positive-electrode lithium-metal layer upon charging, but when very thin, have randomly spaced pinholes/defects. When the hard layers are formed on both the positive and negative electrodes, one electrode's dendrite-short-causing defects on are not aligned With the other electrode's defects.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes.

Abstract: A bipolar battery construction is disclosed comprising a substrate, openings in the substrate, an electrically conductive material placed within the openings, a negative and positive current collector foil placed on opposing sides of the substrate and negative and positive pasting frame members. The electrically conductive material may have a melting point below the thermal degradation temperature of the substrate.

Abstract: Disclosed are a current collector for a flexible electrode, a method of manufacturing the same, and a negative electrode including the same. The current collector for a flexible electrode includes: a flexible polymer substrate; a cross-linkable polymer layer disposed on the polymer substrate; and a metal layer disposed on the cross-linkable polymer layer, wherein the surface of the cross-linkable polymer layer includes a plurality of protrusions and grooves.

Abstract: An electrode includes: an electrode collector and an electrode active material layer, wherein a film containing a salt represented by the following formula (I) is provided on the electrode active material layer: R1AnMx ??(I) wherein R1 represents an n-valent organic group containing a sulfur atom; n represents an integer of from 1 to 4; A represents an anion; M represents a metal ion; and x represents an integer of 1 or more.

Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and an insulating layer formed on a surface of the positive electrode. The positive electrode includes a lithium nickel composite oxide having a layer structure, and the lithium nickel composite oxide is represented by the general formula: LixNiyM1-yO2 where M is at least one selected from the group consisting of Na, Mg, Sc, Y, Mn, Fe, Co, Cu, Zn, Al, Cr, Pb, Sb, and B, 0<x?1.2, and 0.5<y?1.0. The non-aqueous electrolyte includes a solute and a non-aqueous solvent dissolving the solute, and the non-aqueous solvent contains 40% by weight or more of a cyclic carbonic acid ester. The insulating layer includes an insulating polymeric material.

Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte.

Abstract: A negative electrode for a hybrid energy storage device includes a current collector; a corrosion-resistant conductive coating secured to at least one face of the current collector; a sheet comprising activated carbon adhered to the corrosion-resistant conductive coating; a tab portion extending from a side of the negative electrode; and a lug comprising a lead or lead alloy that encapsulates at least part of the tab portion.

Abstract: A flexible energy storage device comprising a flexible housing; an electrolyte contained within the housing; an anode and cathode comprise a current collector and anode/cathode material supported on the current collector. The current collector comprising a fabric substrate (101) and an electron-conductive material (102). The electron conductive material contains voids to enable penetration of the current collector by the electrolyte.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-free and lead-free alkaline zinc electrodes.

Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.

Abstract: A collector for a nonaqueous secondary battery composing at least either one of a positive electrode and a negative electrode to be used for a nonaqueous secondary battery, wherein the collector is constituted by a resin film and a conductive layer stacked on at least one of the surfaces thereof, and provided with a three-dimensional structural region having one or more concave portions and/or convex portions.

Abstract: An electrode (30) comprises a plate (31) having a major surface to which there has been attached an initially separate raised pattern (32) for guiding application of and/or retaining electrolyte paste adjacent the plate (31).

Abstract: A battery cell has a plurality of first and second electrodes of opposite polarities that are interleaved. Each of the first and second electrodes is a sheet of non-woven fabric having a first edge from which a tab projects, and a second edge transverse to and substantially longer than the first edge. The non-woven fabric is coated with a metal in a manner that forms a strip along the second edge which has a greater electrical conductivity than areas more remote from the second edge. The strip extends along the tab. A first terminal is electrically connected to the strip along the tabs of the first electrodes, and a second terminal is electrically connected to the strip along the tabs of the second electrodes.

Abstract: A chip battery includes an element body including a solid electrolyte layer, a positive electrode layer, and a negative electrode layer. Current collectors are provided on the positive electrode layer and the negative electrode layer, respectively, of the element body using a conductive material, such as Pt. In addition, protective films are provided on both end surfaces of the element body and on the current collectors so that the current collectors are exposed near the respective ends in the longitudinal direction of the element body. Further, protective films are provided on the side surfaces of the element body to define a base body. Further, terminal electrodes are provided on the base body so as to be brought into surface contact with the exposed surfaces of the current collectors on both end sides in a direction substantially perpendicular to the lamination direction of the element body.

Abstract: An insulating resin layer is formed on part of the surface of a current collector of an electrode plate for a battery. The insulating resin layer is formed on at least part of a portion at which a mixture particle is not in contact with the surface of the current collector, in the area in which an electrode mixture layer is formed on the surface of the current collector.

Abstract: A jelly-roll type electrode assembly having a negative electrode plate having a negative electrode coated portion coated with a negative electrode active material layer, and a negative electrode uncoated portion disposed at an end of the negative electrode plate that is near a center of the electrode assembly, a positive electrode plate having a positive electrode coated portion coated with a negative electrode active material layer, and a positive electrode uncoated portion disposed at an end of the positive electrode plate that is near the center of the electrode assembly, a separator between the negative electrode plate and the positive electrode plate, and a negative electrode tab and a positive electrode tab electrically connected to the negative electrode uncoated portion and the positive electrode uncoated portion, respectively, wherein a width of the negative electrode uncoated portion is approximately 2 to 3 times that of the negative electrode tab.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-free and lead-free alkaline zinc electrodes.

Abstract: A negative electrode for a hybrid energy storage device includes a current collector; a corrosion-resistant conductive coating secured to at least one face of the current collector; a sheet comprising activated carbon adhered to the corrosion-resistant conductive coating; a tab portion extending from a side of the negative electrode; and a lug comprising a lead or lead alloy that encapsulates at least part of the tab portion.

Abstract: A battery electrode substrate includes a metallic porous body. The metallic porous body has a structure in which a surface of a plastic fiber in a woven or unwoven fabric is coated with a nickel film. The nickel film coats the surface with an average coverage ratio of not less than 85%.

Abstract: The present invention relates to an equalizing electrode plate with insulated split-flow conductive structure, which is a specifically installed insulated split-flow conductive structure with internal conductive body coated with insulator; one end of the insulated split-flow conductive structure connects to the electric energy input/output terminal of the electrode plate, and another end connects to the electrode plate area more far away from the electric energy input/output terminal and/or with larger impedance in the electrode plate; thus the dedicated insulated split-flow conductive structure connects with the electric energy input/output terminal to specifically transmit the electric energy therebetween.

Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes.

Abstract: A secondary battery includes a first electrode plate, a second electrode plate, a separator interposed therebetween, and at least one insulation member. The first electrode plate has a first electrode collector having at least one surface on which a first electrode active material is coated to form a coating portion, a first electrode uncoated portion formed on at least one end of the first electrode collector, and a first protrusion formed on at least one end of the electrode coating portion. The second electrode plate includes a similar second electrode collector, a second electrode coating portion, a second electrode uncoated portion, and a second protrusion. The separator insulates the first electrode plate from the second electrode plate. The at least one insulation member is formed on and covers the first protrusion, the second protrusion, or both such that an electrolyte is flowable through the at least one insulation member.

Abstract: A current collector sheet for an electrode of an electrochemical device has a conductive area and an insulating area on the surface thereof. Examples of the current collector sheet includes: a current collector sheet including an insulating sheet, wherein the conductive area has a conductive layer formed on the surface of the insulating sheet, and the insulating area has an exposed portion of the insulating sheet; a current collector sheet including a conductive sheet, wherein the insulating area has an insulating layer formed on the surface of the conductive sheet, and the conductive area has an exposed portion of the conductive sheet; and a current collector sheet including a conductive sheet portion and an insulating sheet portion positioned flush with each other, wherein the conductive area has a surface of the conductive sheet portion, and the insulating area has a surface of the insulating sheet portion.

Abstract: A lithium secondary battery, and more particularly, a lithium secondary battery which can improve the impregnation of an electrolyte solution either by modifying the material of a protection layer, such as a laminating tape and others, to be formed to protect the elimination of active materials, into a material with an affinity for the electrolyte solution, or by coating the material of an existing protection layer with an ingredient with an affinity for the electrolyte solution.

Abstract: A wafer alkaline cell of a laminar structure is disclosed. The cell has a pair of opposing sides comprising at least the majority of the boundary surface of said cell and defining a short cell dimension therebetween. The cell comprises an anode assembly and a cathode assembly bonded together to form a laminate structure. The cell comprises preferably two separate plastic frames housing the anode and cathode material. The anode current collector may be precoated with a sealing metal forming an alkaline resistant metal oxide film to improve bonding to the frame. The anode assembly has an anode material therein typically comprising zinc and the cathode assembly has a cathode material therein typically comprising manganese dioxide. The cell is durable and preferably rigid, has elongated leak block paths, and resists electrolyte leakage.

Abstract: A nonaqueous electrolyte secondary battery of the present invention includes a nonaqueous electrolyte and a positive electrode 13 that occludes lithium ions reversibly. The positive electrode 13 includes active material layers 13b and a sheet-like collector 13a that supports the active material layers 13b. The collector 13a contains aluminum and at least one element other than aluminum. The average composition that is obtained by averaging the ratio of the elements composing the collector 13a in the direction of the thickness of the collector 13a is equal to the composition of an alloy whose liquidus temperature is 630° C. or lower. The present invention makes it possible to prevent heat from being generated due to an internal short circuit in the nonaqueous electrolyte secondary battery.

Abstract: Disclosed is a rechargeable lithium polymer battery comprising a negative electrode including a negative active material layer deposited on a substrate, a positive electrode including a positive active material; and a polymer electrolyte including a lithium salt, an organic solvent, and a polymer.

Abstract: Disclosed is a rechargeable lithium ion battery including a positive electrode comprising a first current collector and a positive active material layer on the first current collector; a negative electrode comprising a second current collector and a negative active material layer on the second current collector; and an electrolyte comprising a non-aqueous organic solvent and a lithium salt. At least one of the first and the second current collectors includes a rigid polymer film with a metal deposited on the rigid polymer film.

Abstract: A nonaqueous electrolyte secondary battery including a positive electrode 2 containing a positive electrode active material comprising a lithium-transition metal oxide having a layered structure, a negative electrode 1 and a nonaqueous electrolyte, wherein a surface treatment layer containing a compound represented by the chemical formula MlPmOn (wherein M is at least one element which can have a valence of 2, and l, m and n are integers in a range satisfying 2l+5m=2n) is formed on at least a part of the surface of the positive electrode active material.

Abstract: An electrical energy storage device includes a substrate having an outer surface and having a plurality of cavities communicating with the outer surface. The cavities have interior cavity surfaces. A first electrode layer is deposited at least over the interior cavity surfaces. An electrolyte separator layer is formed over the first electrode layer so as to fill the cavities and to extend over the outer surface of the planar substrate. A second electrode layer is formed over the electrolyte separator layer on the outer surface of the planar substrate.

Abstract: An electrochemical cell comprising a cathode of a powder material pressed into intimate contact with a rod-shaped current collector and an anode at least partially wrapped around the cathode is described. The cathode current collector is preferably provided with a plurality of offset flats offset with respect to each other. This helps prevent the cathode active material from sliding off of the rod-shaped current collector. The anode has spaced apart edges at opposite ends of its width that form a gap with the anode wrapped around the cathode. This helps in sliding the anode/cathode electrode assembly into a cylindrical tube comprising the cell casing. A preferred chemistry is a lithium/CFx activated with a nonaqueous electrolyte.

Abstract: A method of producing an electrode includes the steps of filling an active material in an electrode substrate made of woven or non-woven fabric having its fiber surface coated with metal, and pressing the electrode substrate to obtain an electrode, wherein the pressing is performed using the electrode substrate having a thickness of less than 2.0 t when the thickness of the electrode after the pressing is t. This ensues that the electrode substrate has a thickness allowing the active material of a sufficient amount to be filled therein, and a battery electrode in which the filled active material is unlikely to peel off from the electrode substrate can be produced. Accordingly, a battery electrode having a desired thickness and desired capacity and that can suppress degradation in battery performance due to repeated charge and discharge, and its producing method are provided.

Abstract: Disclosed is a rechargeable lithium ion battery including a positive electrode comprising a first current collector and a positive active material layer on the first current collector; a negative electrode comprising a second current collector and a negative active material layer on the second current collector; and an electrolyte comprising a non-aqueous organic solvent and a lithium salt. At least one of the first and the second current collectors includes a rigid polymer film with a metal deposited on the rigid polymer film.

Abstract: An electrochemical device having an electrode plate assembly that includes: (a) at least one first electrode; (b) at least one second electrode; and (c) a separator interposed between the first electrode and the second electrode, the electrode plate assembly including a PTC device. The use of the electrochemical device according to this invention makes it possible to efficiently manufacture secondary batteries with a simple structure, a high reliability and a high electrical capacity.

Abstract: A cell electrode plate in which at least one of opposite widthwise ends of longitudinally discontinuous exposed portions with no coatings made of electrode active material on a core member made of metal foil includes pass-by transition portions for press rolls, the transition portions having a thickness substantially the same as that of the coatings. As a result, without complicating a production line, a core member is prevented from being broken and the production line is operated smoothly so as to attain improved productive efficiency and reduced equipment expenses.

Abstract: The invention relates to the production of composite cathodes and anodes for lithium batteries, and the cathodes and anodes thereby produced. The active mass in the form of a thin film is incorporated into a material, or the active mass together with a matrix metal or a matrix alloy is deposited on a substrate. The invention also relates to a metallized, textile material made of insulating fibres which have been made conductive and which have been completely galvanically or electrolessly plated. The fibres lying on crossovers are not baked with other fibres, but can move freely. The surface of the material is thereby optimally used. Said material is preferably used as an anode or a cathode for batteries, especially a lithium battery, and fuel cells. During the galvanizing or electroless application stage in the production of the material, the fibres in the material move relatively to each other in order to avoid baking.

Abstract: An electrochemical device comprising an electrolyte and at least one electrode plate, the electrochemical device having a metal part constituting the electrode plate or being connected to the electrode plate; the electrolyte comprising a solute and a solvent dissolving the solute; the metal part having an insulating oxide layer for preventing the electrolyte from creeping on at least part of the surface of the metal part.

Abstract: An electrode (30) comprises a plate (31) having a major surface to which there has been attached an initially separate raised pattern (32) for guiding application of and/or retaining electrolyte paste adjacent the plate (31).

Abstract: An apparatus (1) for use of carbonized charcoal powder as an electrode is provided. Charcoal is provided as a powder, carbonized, and placed in a container (16) by which compressive pressure is applied to the carbonized-charcoal powder via one or more sides of the container (16). As a result of the compressive pressure the packed-bed (11) of carbonized-charcoal powder manifests a resistivity of less than about 1 ohm-cm and is suitable for use as an electrode in a fuel cell, battery or electrolyzer. The apparatus is adapted with electrical contacts (8, 9, 10) to conduct electric flow to or from the electrode and adapted for communication of an electrolyte with the electrode.

Abstract: A method of making a plurality of battery plates includes forming a strip including a plurality of battery grids. Each battery grid includes a grid network bordered by a frame element and includes a plurality of spaced apart grid wire elements. Each grid wire element has opposed ends joined to one of a plurality of nodes to define a plurality of open spaces in the grid network. The method also includes deforming at least a portion of a plurality of the grid wire elements such that the deformed grid wire elements have a first transverse cross-section at a point intermediate their opposed ends that differs from a second transverse cross-section taken at at least one of their opposed ends. The method also includes applying a lead alloy coating to the strip, applying battery paste to the strip, and cutting the strip to form a plurality of battery plates.

Abstract: A nonaqueous electrolyte battery whose electrolyte can be selected from a wider range of materials can be obtained. The nonaqueous electrolyte battery comprises a positive electrode, a negative electrode and a nonaqueous electrolytic solution. At least one of the positive and negative electrodes has a collector which includes a compound containing at least one element selected from the group consisting of transition metal elements, group III elements, group IV Elements, and group V elements.

Abstract: A battery separator for extending the cycle life of a battery has a separator and a conductive layer. The conductive layer is disposed upon the separator. The conductive layer is adapted to be in contact with the positive electrode of the battery thereby providing a new route of current to and from the positive electrode.

Abstract: An electrode according to the present invention employs the metal plate having the specified structure as the electrode substrate. The metal plate 51 has a plurality of protuberances 54 that are alternately protruded on both front and back sides thereof. Each of the protuberances 54 is formed in a pyramid shape in which an area of upper bottom 52 (a protruded part) thereof is smaller than that of a lower bottom 53. The upper bottom 52 in each of the protuberances 54 is formed with an aperture 56 having blanking burr 55 blinked in a substantially pyramid shape along a direction from the upper bottom 52 to the lower bottom 53 so that an opening 52a of the upper bottom part is formed in a polygon shape. Further, the size of each portions is set in accordance with c>s?0.1 mm2 and 0.2?h/d?0.

Abstract: Compositions and methods are provided for coating electroactive particles. Coating materials include a conductive component and a low refractive index component. Coatings are provided in which the conductive and low refractive index components are linked and/or do not form phases having lengthscales greater than about 0.25 ?m. Coatings are provided in which the components are contained in sequential layers.

Abstract: 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. Mesh projections as a frame structure are formed on the surface on the side facing an anode active material layer, of an anode collector. By the mesh projections, expansion and contraction in the plane direction of the anode active material layer is suppressed. Thus, pulverization, peeling, and the like of the anode active material layer caused by expansion and contraction thereof are prevented and the cycle characteristics are improved.