Abstract: An energy storage device comprises a first porous semiconducting structure (510) comprising a first plurality of channels (511) that contain a first electrolyte (514) and a second porous semiconducting structure (520) comprising a second plurality of channels (521) that contain a second electrolyte (524). In one embodiment, the energy storage device further comprises a film (535) on at least one of the first and second porous semiconducting structures, the film comprising a material capable of exhibiting reversible electron transfer reactions. In another embodiment, at least one of the first and second electrolytes contains a plurality of metal ions. In another embodiment, the first and second electrolytes, taken together, comprise a redox system.

Abstract: Provided is a prismatic battery comprising stacked positive electrode plates, negative electrode plates and separator layers therebetween. The positive and negative electrode plates extend beyond a periphery of the electrode stack. The positive electrode plates are fused to form a positive current collector, and the negative electrode plates are fused to form a negative current collector. Both the positive and negative electrode plates comprise a metal foam and are compressed between about 42 and 45% of the original thickness.

Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Preferably, the inorganic oxide comprises an hydrated aluminum oxide of the formula Al2O3.xH2O, wherein x is less than 1.0, and wherein the hydrated aluminum oxide comprises organic substituents, preferably comprising a reaction product of a multifunctional monomer and/or organic carbonate with an aluminum oxide, such as pseudo-boehmite and an aluminum oxide. Also provided are electrochemical cells comprising such separators.

Abstract: Provided is a method of manufacturing a prismatic battery, or a series of prismatic batteries. The method comprises stacking positive electrode plates, negative electrode plates and separator layers therebetween. The positive and negative electrode plates extend beyond a periphery of the electrode stack. The positive electrode plates are fused to form a positive current collector, and the negative electrode plates are fused to form a negative current collector.

Abstract: A method for the production of a battery includes at least production, against a substrate made of a material able to form an electrode, of at least one solid electrolyte layer, production of a first electrode in contact with the electrolyte, and thinning the substrate such that at least a remaining proportion of the substrate, in contact with the solid electrolyte layer, forms a second electrode.

Abstract: An embodiment of the present invention provides an electrode for a rechargeable lithium battery, including: a current collector; and an active material layer on the current collector, wherein the active material layer includes an active material adapted to reversibly intercalate and deintercalate lithium ions, a binder, and a pore-forming polymer.

Abstract: The present invention provides a method for producing a nonaqueous electrolyte secondary battery in which the drop in capacity retention rate is controlled by forming a coating in a more favorable state on the surface of the negative electrode active material.

Abstract: A method for forming a lithium-ion type battery, including the successive steps of: forming, in a substrate, a trench; successively and conformally depositing a stack including a cathode collector layer, a cathode layer, an electrolyte layer, and an anode layer, this stack having a thickness smaller than the depth of the trench; forming, over the structure, an anode collector layer filling the space remaining in the trench; and planarizing the structure to expose the upper surface of the cathode collector layer.

Abstract: An electrode comprising a polyphosphazene cyclomatrix and particles within pores of the polyphosphazene cyclomatrix. The polyphosphazene cyclomatrix comprises a plurality of phosphazene compounds and a plurality of cross-linkages. Each phosphazene compound of the plurality of phosphazene compounds comprises a plurality of phosphorus-nitrogen units, and at least one pendant group bonded to each phosphorus atom of the plurality of phosphorus-nitrogen units. Each phosphorus-nitrogen unit is bonded to an adjacent phosphorus-nitrogen unit. Each cross-linkage of the plurality of cross-linkages bonds at least one pendant group of one phosphazene compound of the plurality of phosphazene compounds with the at least one pendant group of another phosphazene compound of the plurality of phosphazene compounds. A method of forming a negative electrode and an electrochemical cell are also described.

Abstract: Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28.

Abstract: A rechargeable lithium-sulfur cell comprising an anode, a separator and/or electrolyte, a sulfur cathode, an optional anode current collector, and an optional cathode current collector, wherein the cathode comprises (a) exfoliated graphite worms that are interconnected to form a porous, conductive graphite flake network comprising pores having a size smaller than 100 nm; and (b) nano-scaled powder or coating of sulfur, sulfur compound, or lithium polysulfide disposed in the pores or coated on graphite flake surfaces wherein the powder or coating has a dimension less than 100 nm. The exfoliated graphite worm amount is in the range of 1% to 90% by weight and the amount of powder or coating is in the range of 99% to 10% by weight based on the total weight of exfoliated graphite worms and sulfur (sulfur compound or lithium polysulfide) combined. The cell exhibits an exceptionally high specific energy and a long cycle life.

Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.

Abstract: The power extraction efficiency of a nonaqueous electrolyte secondary battery such as a lithium ion battery is improved. A material having magnetic susceptibility anisotropy such as an olivine type oxide including a transition metal element is used for active material particles. The active material particles and an electrolyte solution are mixed to form a slurry. The slurry is applied to a current collector, and then the current collector is left in a magnetic field. Thus, the active material particles are oriented. With the use of active material particles oriented in such a manner, the power extraction efficiency can be improved.

Abstract: The present invention is directed to the fabrication of thin aluminum anode batteries using a highly reproducible process that enables high volume manufacturing of the galvanic cells. A method of fabricating a thin aluminum anode galvanic cell is provided, the method including, depositing a layer of catalytic metal on a surface of a first substrate, depositing and patterning a benzocyclobutene layer to form a reservoir having four sidewalls of benzocyclobutene on the surface of the catalytic layer, depositing a layer of aluminum on a surface of a second substrate and bonding the first substrate to the second substrate to form a galvanic cell bounded by the catalytic metal layer and the aluminum layer and separated by the reservoir walls of benzocyclobutene, the second substrate positioned in overlying relation to contact the four sidewalls of the reservoir with the aluminum layer facing the catalytic layer.

Abstract: The present invention relates to a negative electrode for lithium ion rechargeable battery and a manufacturing method thereof. The negative electrode comprises at least one vermicular graphite and at least one pitch, wherein the vermicular graphite is fabricated by way of thermally treating an expandable graphite powder, and the pitch is adsorbed in the pores of the vermicular graphite. In the present invention, the pitch adsorbed in the vermicular graphite would be carbonized and graphitized, such that a composite graphite having multi-layer flake graphite is formed, and the composite graphite is further pulverized to a composite graphite powder. Moreover, the manufacturing method of the present invention can be used for fabricating the negative electrode for lithium ion rechargeable battery under the conditions of reducing manufacturing cost and solvent usage, so as to protect the environment from the manufacturing process pollution.

Abstract: In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided.

Abstract: According to one embodiment, a manufacturing method of an electrode includes supplying a current collector, coating the current collector with a slurry and drying the slurry. In the manufacturing method of the electrode, the current collector is supplied onto a backup roll including annular protruding portions formed on an outer circumferential surface of the backup roll. A surface of the current collector excluding a portion arranged on a plurality of the annular protruding portions is coated with slurry containing an active material. And, then, the slurry is dried.

Abstract: According to one embodiment, a manufacturing method of an electrode, includes coating a first surface of a current collector with slurry, coating a second surface of the current collector with the slurry, and drying. The first and second surfaces are coated with the slurry in such a way that a slurry coated portion and a slurry non-coated portion are alternately arranged in a direction perpendicular to a moving direction of the current collector. The slurry non-coated portion is arranged on annular protruding portions of a backup roll. The slurry coated portion is dried by a drying apparatus. A formula (1), 0<L1, and a formula (2), 0<L2, are satisfied.

Abstract: Process for fabrication of all-solid-state thin film batteries, said batteries comprising a film of anode materials, a film of solid electrolyte materials and a film of cathode materials, in which: each of these three films is deposited using an electrophoresis process, the anode film and the cathode film are each deposited on a conducting substrate, preferably a thin metal sheet or band, or a metalized insulating sheet or band or film, said conducting substrates or their conducting elements being useable as battery current collectors, the electrolyte film is deposited on the anode and/or cathode film, and in which said process also comprises at least one step in which said sheets or bands are stacked so as to form at least one battery with a “collector/anode/electrolyte/cathode/collector” type of stacked structure.

Abstract: In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided.

Abstract: The present invention is directed to the fabrication of thin aluminum anode batteries using a highly reproducible process that enables high volume manufacturing of the galvanic cells. A thin aluminum anode galvanic cell having a meshed structure is provided which includes a catalytic metal layer positioned on a patterned silicon substrate, an etched dielectric layer positioned to cover the catalytic metal layer, the catalytic metal layer serving as an etch stop for the etched dielectric layer and an etched aluminum layer positioned to cover the dielectric layer, the dielectric layer serving as an etch stop for the etched aluminum layer.

Abstract: A nonaqueous secondary battery includes a current cutoff mechanism that cuts off a current in a short period of time in response to a rise in pressure inside a battery outer body in at least one of a conductive path through which a current is taken out from a positive electrode plate to outside of the battery and a conductive path through which a current is taken out from a negative electrode plate to outside of the battery. At least one type selected from an oligomer containing a cyclohexyl group and a phenyl group, a modified product of the oligomer containing a cyclohexyl group and a phenyl group, a polymer containing a cyclohexyl group and a phenyl group, and a modified product of the polymer containing a cyclohexyl group and a phenyl group is present on the surface of the positive electrode plate.

Abstract: A lithium transition metal oxide powder for use in a rechargeable battery is disclosed, where the surface of the primary particles of said powder is coated with a LiF layer, where this layer consists of a reaction product of a fluorine-containing polymer and the primary particle surface. The lithium of the LiF originates from the primary particles surface. Examples of the fluorine-containing polymer are either one of PVDF, PVDF-HFP or PTFE. Examples of the lithium transition metal oxide are either one of —LiCodMeO2, wherein M is either one of both of Mg and Ti, with e<0.02 and d+e=1; —Li1+aM?1?aO2±bM1kSm with ?0.03<a<0.06, b<0.02, M? being a transition metal compound, consisting of at least 95% of either one or more elements of the group Ni, Mn, Co and Ti; M1 consisting of either one or more elements of the group Ca, Sr, Y, La, Ce and Zr, with 0?k?0.1 in wt %; and 0<m<0.6, m being expressed in mol %; and —LiaNixCOyM?zO2±eAf, with 0.9<a?<1.1, 0.5?x?0.9, 0<y?0.4, 0<z?0.35, e<0.

Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.

Abstract: The present invention relates to a method for manufacturing a flat-plate battery. The method includes step S1: providing a chlorophyll layer; step S2: providing a first separator and a second separator absorbing a solution of organic salt respectively; step S3: providing a negative-electrode layer; step S4: coating the first separator on the negative-electrode layer; step S5: coating the chlorophyll layer thereon; step S6: coating the second separator thereon; step S7: coating a positive-electrode layer thereon; and step S8: sandwiching them between an upper plate and a lower plate. The flat-plate battery manufactured by the method can store hydrogen by the chlorophyll of the chlorophyll layer, and this method will not cause environmental pollution even when the flat-plate battery is discarded after use.

Abstract: An object is to provide a power storage device with improved cycle characteristics and a method of manufacturing the power storage device. Another object is to provide an application mode of the power storage device for which the above power storage device is used. In the method of manufacturing the power storage device, an active material layer is formed over a current collector, a solid electrolyte layer is formed over the active material layer after a natural oxide film over the active material layer is removed, and a liquid electrolyte is provided so as to be in contact with the solid electrolyte layer. Accordingly, decomposition and deterioration of the electrolyte solution which are caused by the contact between the active material layer and the electrolyte solution can be prevented, and cycle characteristics of the power storage device can be improved.

Abstract: The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region.

Abstract: An electrochemical cell includes an anode having a metal material having an oxygen containing layer. The electrochemical cell also includes a cathode and an electrolyte. The anode includes a chemically bonded protective layer formed by reacting a D or P block precursor with the oxygen containing layer.

Abstract: A power storage device with favorable battery characteristics and a manufacturing method thereof are provided. The power storage device includes at least a positive electrode and a negative electrode provided so as to face the positive electrode with an electrolyte provided therebetween. The positive electrode includes a collector and a film containing an active material over the collector. The film containing the active material contains LieFefPgOh satisfying relations 3.5?h/g?4.5, 0.6?g/f?1.1, and 0?e/f?1.3 and LiaFebPcOd satisfying relations 3.5?d/c?4.5, 0.6?c/b?1.8, and 0.7?a/b?2.8. The film containing the active material contains the LiaFebPcOd satisfying the relations 3.5?d/c?4.5, 0.6?c/b?1.8, and 0.7?a/b?2.8 in a region which is in contact with the electrolyte.

Abstract: A method for encapsulating a thin-film lithium-ion type battery, including the steps of: forming, on a substrate, an active stack having as a lower layer a cathode collector layer extending over a surface area larger than the surface area of the other layers; forming, over the structure, a passivation layer including through openings at locations intended to receive anode collector and cathode collector contacts; forming first and second separate portions of an under-bump metallization, the first portions being located on the walls and the bottom of the openings, the second portions covering the passivation layer; and forming an encapsulation layer over the entire structure.

Abstract: An electrochemical cell including an integrated electrode structure including a separator and an electrode active material, components thereof, a battery including the electrochemical cell, and methods of forming the components, electrochemical cell, and battery are disclosed. The integrated electrode structure includes a separator and at least on electrode active material.

Abstract: Energy storage devices including at least one energy storage cell having molecular sieves to mitigate a sensitivity of the storage cell to water contamination that may degrade performance of an electrolyte associated with the energy storage cell.

Abstract: A thermal battery includes a first conductive layer containing an anode material separated from a second conductive layer containing a cathode material by a separator layer containing a separator material; and a flexible pyrotechnic heat source, wherein the first conductive layer, the separator layer, and the second conductive layer are rolled together to form the spiral wound configuration. A method of manufacturing a thermal spiral wound battery includes preparing three slurries, each containing one of an anode material, a cathode material, and a separator material, depositing each of the materials from the slurries onto conductive substrates to form three layers, stacking the layers, and winding the layers together into a spiral wound configuration.

Abstract: A conductor is describing for an electrochemical energy store, including a base body, and at least one electrically conductive layer situated at least partially on the base body. The base body includes a non-electrically conductive material. In addition, an energy store is described which is equipped with the conductor, a method for manufacturing a conductor is described, and the use of the energy store equipped with the conductor in an electrical device is described.

Abstract: Methods and apparatus to form three-dimensional biocompatible energization elements are described. In some embodiments, the methods and apparatus to form the three-dimensional biocompatible energization elements involve forming conductive traces on the three-dimensional surfaces and depositing active elements of the energization elements on the conductive traces. The active elements are sealed with a biocompatible material. In some embodiments, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.

Abstract: An electrode for an electrochemical energy store, including an active material layer having an active material, a protective layer being at least partially applied to the active material, and the protective layer at least partially including a fluorophosphate-based material. Such an electrode offers a particularly high stability, even when high voltages are present. Also described is a method for manufacturing an electrode, to an electrochemical energy store and to the use of a fluorophosphate-based material for generating a protective layer for an active material of an electrode of an electrochemical energy store.

Abstract: A battery assembly can be formed on a base layer provided on a substrate, with a thin film battery stack including an anode layer, a cathode layer, and an electrolyte layer between the anode and cathode layers. The thin film battery stack can be encapsulated, and assembled into a battery system with electrical power connections for the anode and cathode layers.

Abstract: An energy storage device can have a first graphite film, a second graphite film and an electrode divider ring between the first graphite film and the second graphite film, forming a sealed enclosure. The energy storage device may be compatible with an aqueous electrolyte or a non-aqueous electrolyte. A method of forming an energy storage device can include providing an electrode divider ring, a first graphite film and a second graphite film. The method can include pressing a first edge of the electrode divider ring into a surface of the first graphite film, and pressing a second opposing edge of the electrode divider ring into a surface of the second graphite film to form a sealed enclosure. The sealed enclosure may have as opposing surfaces the surface of the first graphite film and the surface of the second graphite film.

Abstract: Components and systems for energy storage and conversion devices are disclosed. An exemplary system may include a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode for providing ionic transport. The system may also include a hydrophobic portion on the separator. The hydrophobic portion may comprise hydrophobic pathways formed on the surface of the separator. The system may also include a hydrophilic portion on the separator. Another exemplary system may include an absorptive glass mat separator having a hydrophobic portion and a textured PVC separator. An exemplary method may include manufacturing the separator and applying a hydrophobic portion on the separator. The method may also include applying a hydrophilic portion to the separator.

Abstract: An anode substrate which enables achievement of a battery having a high output voltage and a high energy density, and being superior in charge and discharge cycle characteristics; a secondary cell in which the anode substrate is used; a resin composition for use in forming the anode substrate; and a method for producing the anode substrate are provided. According to anode substrate 10 including metal film 13 formed on support 11 provided with patterned organic film 12 molded by a thermal imprint process or a photoimprint process, a battery having a high output voltage and a high energy density, and being superior in charge and discharge cycle characteristics can be provided.

Abstract: The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and 2000° C. during a first heating period. The graphite powder is then cooled to a final temperature during a cool down period. The graphite powder is contacted with a forming gas during at least one of the first heating period and the cool down period. The forming gas includes H2 and an inert gas.

Abstract: A method of forming an electrode of a lithium ion secondary battery includes combining a binder and active particles to form a mixture, coating a surface with the mixture to form a coated article, translating the article along a first plane, cutting a first plurality of carbon fibers, each having a first average length, to form a second plurality of carbon fibers, each having a longitudinal axis and a second average length that is shorter than the first average length, inserting the second plurality of fibers into the mixture layer so that the longitudinal axis of each of at least a portion of the second plurality of fibers is not parallel to the first plane to form a preform, wherein the second plurality of fibers forms a truss structure disposed in three dimensions within the mixture layer, and heating the preform to form the electrode. An electrode is also disclosed.

Abstract: Embodiments of the present disclosure provide for materials that include conch shell structures, methods of making conch shell slices, devices for storing energy, and the like.

Abstract: The present invention provides a nanostructure on an upper surface of which a small-diameter carbon nanotube (CNT) is formed and which improves an adhesive strength between a substrate and the CNT while controlling an orientation of the CNT, and a method for manufacturing the nanostructure. The nanostructure includes a substrate 101, a porous layer 102 formed on the substrate 101 to have a fine pore, a fine pore diameter control layer 103 formed on the porous layer 102, and a carbon nanotube 701 formed to extend from the fine pore defined by the fine pore diameter control layer 103, and one end of the carbon nanotube is fixed by the fine pore diameter control layer 103. It is preferable that the substrate 101 and the fine pore diameter control layer 103 be electrically conductive. It is preferable that the porous layer 102 be an anode oxide film. It is preferable that a melting point of the fine pore diameter control layer 103 be 600° C. or higher.

Abstract: A prismatic sealed secondary cell that is excellent in current collection efficiency and current collection stability, and capable of high output discharge. In the prismatic sealed secondary cell a laminate-type or a wound laminate-type flat electrode assembly is housed in a prismatic cell case, a pair of current collector plates are disposed on a flat portion of the outermost surface of the core exposed portion of the first electrode plate constituting the flat electrode assembly so that the pair of current collector plates sandwich the flat portion in the thickness direction, and a columnar connection conductive member is interposed between two-divided core exposed portion laminates in the flat portion sandwiched between the pair of current collector plates, and the pair of current collector plates, the columnar connection conductive member and the two-divided core exposed portion laminates are welded to each other.

Abstract: To provide a power storage device with improved cycle characteristics. In the power storage device, a conductive catalyst layer is provided in contact with a surface of an active material layer formed of silicon or the like and a carbon layer is provided over the conductive catalyst layer. The carbon layer is formed by a CVD method using an effect of the catalyst layer. The carbon layer formed by a CVD method is crystalline and helps prevent an impurity such as an SEI from being attached to a surface of an electrode of the power storage device, leading to improvements in cycle characteristics of the power storage device.

Abstract: An electrode structure includes a rolled graphene film which is wound about a central axis, and a nanomaterial dispersed on a surface of the rolled graphene film.

Abstract: A method for making a solid state cathode comprises the following steps: forming an alkali-free first solution comprising at least one transition metal and at least two ligands; spraying this solution onto a substrate that is heated to about 100 to 400° C. to form a first solid film containing the transition metal(s) on the substrate; forming a second solution comprising at least one alkali metal, at least one transition metal, and at least two ligands; spraying the second solution onto the first solid film on the substrate that is heated to about 100 to 400° C. to form a second solid film containing the alkali metal and at least one transition metal; and, heating to about 300 to 1000° C. in a selected atmosphere to react the first and second films to form a homogeneous cathode film. The cathode may be incorporated into a lithium or sodium ion battery.

Abstract: A method of manufacturing a lithium ion secondary battery comprising the steps of: forming a laminate by laminating an electrolyte green sheet and a positive electrode green sheet; and sintering the laminate is provided. At least one of the electrolyte green sheet and the positive electrode green sheet contains an amorphous oxide glass powder in which a crystalline having a lithium ion conducting property is precipitated in the step of sintering. A solid state battery produced in accordance with the method is provided.

Abstract: A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2<H3, and (H1?H2)?(H3?H2)÷2.