Abstract: A battery capable of changing its form safely is provided. A bendable battery having a larger thickness is provided. A battery with increased capacity is provided. For an exterior body of the battery, a film in the shape of a periodic wave in one direction is used. A space is provided in an area surrounded by the exterior body and between an end portion of the electrode stack that is not fixed and an interior wall of the exterior body. Furthermore, the phases of waves of a pair of portions of the exterior body between which the electrode stack is located are different from each other. In particular, the phases are different from each other by 180 degrees so that wave crest lines overlap with each other and wave trough lines overlap with each other.

Abstract: Lithium battery cells, and battery packs comprising the same, include an electrolyte, and an anode and a cathode, each of which include a current collector having a length, the length defining a first end and a second end, a width, a host or active material disposed on the current collector between the first end and the second end, a first tab extending from the first end, and a second tab extending from the second end. A plurality of cells can be stacked in a planar configuration, and a plurality of anode first tabs, a plurality of anode second tabs, a plurality of cathode first tabs, and a plurality of cathode second tabs can each be electrically connected via a respective busbar. The anode and cathode can have a length:width ratio of at least three, or 2.5 to 10. The battery cell can be a power source for an electric/hybrid vehicle.

Abstract: The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a z-average molecular weight Mz of more than 400,000 g/mole, and a process to make such composition. The composition is suitable for thermoformed articles and injection molded articles.

Abstract: The invention discloses a tubular lithium battery. The tubular lithium battery comprises at least a tubular body and a hollow channel. The body has at least one power supply unit, at least one packaging unit and at least two terminals. The power supply unit is packed via the packaging unit and is electrically connected to the terminals. The power supply unit and the packaging unit are wound as a whole. The hollow channel, which is positioned inside the body, is formed by winding the power supply unit and the packaging unit. The orientations and the positions of the terminals may be various due to locating in different positions of the power supply unit as well as winding the power supply unit and the packaging unit toward different directions, so that the electronic device exerting the tubular lithium battery disclosed in the present invention can be designed in various ways.

Abstract: A laminated porous membrane includes a polyolefin porous membrane, on one surface of which projections that are made of a polyolefin and satisfy 5 ?m?W?50 ?m (W: projection size) and 0.5 ?m?H (H: projection height) are irregularly scattered at a density of 3/cm2 to 200/cm2, and a modifying porous layer laminated on the surface of the polyolefin porous membrane having the projections, wherein the modifying porous layer includes a binder with a tensile strength of at least 5 N/mm2 and inorganic particles.

Abstract: A battery has a lithium anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of a first and second material, wherein the first material contains sulfur and the second material comprises a solid electrolyte.

Abstract: An electrode wound element for a non-aqueous electrolyte rechargeable battery includes a belt-shaped positive electrode; a belt-shaped negative electrode; a belt-shaped porous layer between the belt-shaped positive electrode and the belt-shaped negative electrode; and an adhesive layer formed on the surface of the belt-shaped porous layer, wherein the adhesive layer includes a fluorine resin-containing particulate and a binder for an adhesive layer supporting the fluorine resin-containing particulate, the binder comprising at least one of an ionic non-water-soluble binder, a non-ionic water-soluble binder, a non-ionic non-water-soluble binder and an ionic water-soluble binder.

Abstract: Provided is a means for beneficially solving the problems of increasing separator productivity and further improving adhesion between an electrode and a separator in electrolysis solution while ensuring battery characteristics. A composition for non-aqueous secondary battery functional layer is provided that contains non-conductive inorganic particles and organic particles, wherein a difference in density between the non-conductive inorganic particles and the organic particles (non-conductive inorganic particles' density—organic particles' density) is 1.5 g/cm3 or more, and the organic particles each have a core-shell structure having a core and a shell that partially covers an outer surface of the core, wherein the core is made of polymer having a degree of swelling in electrolysis solution of 5 times to 30 times, and the shell is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times.

Abstract: A battery module includes a terminal block assembly having an electrical assembly and a plastic base. The electrical assembly includes a terminal post and a bus bar coupled with the terminal post. A portion of the electrical assembly is overmolded by the plastic base, and the portion includes at least part of a terminal post base that extends outward from a central axis of a post portion of the terminal post. The battery module also includes a plastic housing having a receptacle configured to receive the plastic base of the terminal block assembly.

Abstract: A lithium ion battery has a flat wound electrode assembly, a nonaqueous electrolyte, and a battery case. The nonaqueous electrolyte contains an electrically insulating inorganic aggregate and is formed of an impregnating electrolyte impregnated into the flat wound electrode assembly and a surplus electrolyte not impregnated into the flat wound electrode assembly. Letting the flat wound electrode assembly be divided into a planar region where the electrode surfaces are planar surfaces and a lower wound curved region which is positioned vertically downward from the planar region and where the electrode surfaces are curved, a boundary plane that includes the boundary between the planar region and the lower wound curved region, the inorganic aggregate amount MO included in a space which is below the boundary plane and the inorganic aggregate amount MI included in the impregnating electrolyte within the flat wound electrode assembly satisfy the relationship MO>MI.

Abstract: A battery separator is disclosed. The battery separator includes a polyolefin porous membrane which has a plurality of protrusions including a polyolefin. The protrusions are interspersed randomly on at least one surface of the polyolefin porous membrane at a density of not less than 3 protrusions/cm2 and not greater than 200 protrusions/cm2. The protrusions have a size W, where 5 ?m?W?50 ?m, and the protrusions have a height H, where 0.5 ?m?H. The battery separator also includes a modified porous layer, including a fluorine-based resin, and a plurality of inorganic particles laminated on the at least one surface of the polyolefin porous membrane. A concentration of the inorganic particles is not less than 40 wt. % and is less than 80 wt. %.

Abstract: The invention provides a coating or film adapted to be arranged between a separator and at least one electrode of a rechargeable battery. The coating or film comprises a first material capable of forming a porous layer and allowing a passage of ions therethrough; wherein, in response to temperature change, the first material porous layer is adapted to substantially close pores in said first material porous layer to thereby substantially reduce or prevent further passage of ions through the first material.

Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. A cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer provided on at least a portion of a surface of the cathode active part and including an inorganic oxide.

Abstract: The present invention relates to a structure including a layer including titanium (di)oxide nanostructures, such as titania nanotubes, in contact with a membrane layer including a proton-conducting polymer. A process for preparing the structures of the invention is presented wherein titanium (di)oxide nanostructures on a first substrate are transferred to an ion-conducting polymer membrane by pressing using a hot press, and then detaching the nanostructures from the first substrate.

Abstract: An electrode includes selenium, a selenium-containing compound, selenium-carbon composite, a selenium-containing compound-carbon composite, or a mixture thereof; a carbon electronic conductor; a binder; and a current collector; wherein: the electrode is a solid electrode.

Abstract: A separator including a porous base material layer and a coating layer disposed on at least one surface of the porous base material layer, wherein the coating layer includes the binder composition, and a binder film comprising the binder composition has an elongation of 10% or less measured after maintaining the binder film under a load of 50 g at 150° C. for 10 minutes, and a lithium battery including the same.

Abstract: The present invention relates to an inorganic oxide powder which is suitably used to form an inorganic oxide porous film having excellent heat resistance, insulation properties and film strength, regardless of a small basis weight, and also having porosity capable of imparting sufficient ion permeability on at least one surface of a positive electrode, a negative electrode, or a separator that constitutes a nonaqueous electrolyte secondary battery. Disclosed is an inorganic oxide powder, wherein: 1) an average three-dimensional particle unevenness is 3.6 or more, and 2) an abundance ratio in number of particles having a particle diameter of less than 0.3 ?m is 50% or more.

Abstract: Articles and methods for forming ceramic/polymer composite structures for electrode protection in electrochemical cells, including rechargeable lithium batteries, are presented.

Abstract: A negative electrode active material layer (243A) of a lithium-ion secondary battery (100A) contains natural graphite and artificial graphite as negative electrode active material particles. The negative electrode active material layer (243A) has a region (A1) facing the positive electrode active material layer (223) and regions (A2, A3) not facing the positive electrode active material layer (223). The region (A1) facing the positive electrode active material layer (223) contains the natural graphite in a larger proportion than the regions (A2, A3) not facing the positive electrode active material layer (223), and the regions (A2, A3) not facing the positive electrode active material layer (223) contain the artificial graphite in a larger proportion than the region (A1) facing the positive electrode active material layer (223).

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.

Abstract: The present invention relates to a lithium secondary battery, wherein a peak at 167 to 171 eV and a peak at 162 to 166 eV are present in XPS analysis of sulfur (S2p) of a positive electrode surface, and P169/P164 is in the range of 0.7 to 2.0 wherein the P 169/P 164 is the ratio between the intensity of the peak at 167 to 171 eV (P169) and the intensity of the peak at 162 to 166 eV (P164). The present invention can provide a lithium secondary battery having excellent cycle characteristics.

Abstract: An object of the present invention is to provide a negative electrode for a lithium ion secondary battery with the excellent high-temperature cycle characteristic, and a lithium ion secondary battery including the same. In the negative electrode active material for a lithium ion secondary battery according to the present invention, a surface of a negative electrode active material including silicon or silicon oxide is coated with a polymer compound, and the polymer compound includes a polyacrylic acid derivative whose carboxyl groups at ends of side chains are cross-linked with a divalent metal cation (Mg2+, Ca2+, Sr2+, Ba2+, Co2+, Ni2+, Cu2+, or Zn2+).

Abstract: Electrochemical cells for lithium-sulfur batteries include a cathode comprising a sulfur containing material, an anode comprising lithium, a separator between the anode and cathode and an interlayer extending from a perimeter of the separator in a direction perpendicular to a stacking direction. The interlayer is configured to prevent polysulfide migration from the cathode to the anode.

Abstract: The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different.

Abstract: The secondary battery includes an electrode assembly including a first electrode plate and a second electrode plate whereon first and second electrode active materials, and first and second electrode tabs are formed, respectively, and including a separator disposed between the first and second electrode plates while overlapping with the first and second electrode plates; and a planarizing member disposed on at least one of first and second ends that are opposite to each other in a longitudinal direction of the electrode assembly, wherein the planarizing member covers a stepped surface exposed on the at least one of the first and second ends so as to planarize the stepped surface. In the secondary battery, the stepped surface of an end of the electrode assembly is planarized.

Abstract: A method of manufacturing a nonaqueous electrolyte secondary battery includes: preparing a separator substrate; forming a porous layer, which contains at least a fluorophosphate and a binder, on a surface of the separator substrate; preparing an electrode body by laminating a positive electrode and a negative electrode to face each other with a separator including the porous layer interposed therebetween, in which the separator is arranged such that the porous layer faces the positive electrode; preparing a battery assembly including the electrode body and a nonaqueous electrolyte; and charging the battery assembly at least once.

Abstract: A battery including a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an insulative coat on an anode active material layer provided on an anode current collector. The coat contains an insulating material such as a meal hydroxide and a metal oxide. The coat is in a form of plate divided into a plurality of portions. The insulation property of the coat prevents internal short circuit. A plurality of portions of the coat prevent separation of the anode active material layer and decomposition of the electrolytic solution. Further, even when short circuit occurs, heat generation is prevented by heat absorption characteristics of the coat.

Abstract: An electrode assembly including an electrode structure including a first electrode plate and a second electrode plate which are alternately disposed, and a separator film that is disposed between the first electrode plate and the second electrode plate, wherein a surface of the separator film is bonded to the first electrode plate, and a binding member, which rigidly connects at least one selected from the first electrode plate, the second electrode plate, and the separator film.

Abstract: A battery includes a cylindrical battery case and an electrode group including a positive electrode, a negative electrode, and a separator. The electrode group and the battery case define a space communicated from a top to a bottom, and one of the positive electrode and the negative electrode has a current collecting terminal that extends from the electrode group in a direction away from a center axis of the battery case and is in contact with a bottom surface of the battery case.

Abstract: Methods and apparatus to form biocompatible energization elements are described. In some examples, the methods and apparatus to form the biocompatible energization elements involve forming cavities composing active cathode chemistry. The active elements of the cathode and anode are sealed with a biocompatible material. In some examples, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.

Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode mixture layer containing a positive electrode active material and a binder, the positive electrode mixture layer being provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of equal to or higher than 3.0%. The positive electrode current collector is made of aluminum containing iron. In this manner, the tensile extension percentage of the positive electrode is increased without a decrease in capacity of the nonaqueous electrolyte secondary battery. Accordingly, even when the nonaqueous electrolyte secondary battery is destroyed by crush, occurrence of short-circuit in the nonaqueous electrolyte secondary battery can be suppressed.

Abstract: Composite structures including an ion-conducting material and a polymeric material (e.g., a separator) to protect electrodes are generally described. The ion-conducting material may be in the form of a layer that is bonded to a polymeric separator. The ion-conducting material may comprise a lithium oxysulfide having a lithium-ion conductivity of at least at least 10?6 S/cm.

Abstract: A separator which includes a covering layer in which a fine framework of polyolefin resin is coated with a glass layer and an exposed layer in which the polyolefin resin is exposed is provided. A battery is provided having a cathode and an anode, an electrolyte, and a separator where the separator has the covering layer in which the fine framework of polyolefin resin is coated with the glass layer.

Abstract: Provided are a separator-integrated electrode and a nonaqueous electrolyte secondary battery with a reduced risk of a short circuit between electrodes due to precipitation of metallic lithium on a surface of an electrode mixture layer. A positive electrode (12) configured as a separator-integrated electrode includes a positive current collector (22), a positive active material layer (24) formed on a surface thereof, a first porous layer (26) formed on a surface of the positive active material layer (24) and containing inorganic particles, and a second porous layer (28) formed on a surface of the first porous layer (26) and made of resin fibers.

Abstract: The present invention, as frequently practiced, represents a methodology for carrying out thermal management testing. Inventive practice provides desired temperature characteristics without incurring the safety risks associated with Lithium-ion batteries. An exemplary inventive device includes a spiral-wound electrical resistance heater, and simulates the heat generation profile within a Lithium-ion cell through the use of the resistance heater. The construction of the resistance heater is tailored not only to mimic the localized heating profile of the Lithium-ion cell of interest, but also to match thermal properties of the Lithium-ion cell (such as radial thermal conductivity, axial thermal conductivity, and heat capacity). An exemplary inventive device is constructed out of inert materials and hence is inherently safe to carry out thermal management testing, thereby obviating the need for expensive and time-consuming safety qualifications.

Abstract: A porous membrane for a secondary battery, including non-conductive particles and a binder for a porous membrane, wherein the non-conductive particle is a polymer particle having a core-shell structure, the non-conductive particle has a core portion having a glass transition point of 30° C. to 90° C., the non-conductive particle has a shell portion having a glass transition point higher than that of the core portion by 10° C. or higher, a thickness of the shell portion is 0.01% to 3.0% of a number average particle diameter of the non-conductive particles, and a number average particle diameter (A) of the non-conductive particle and a number average particle diameter (B) of the binder for a porous membrane satisfy (A)>(B).

Abstract: Various embodiments of solid-state conductors containing solid polymer electrolytes, electronic devices incorporating the solid-sate conductors, and associated methods of manufacturing are described herein. In one embodiment, a solid-state conductor includes poly(ethylene oxide) having molecules with a molecular weight of about 200 to about 8×106 gram/mol, and a soy protein product mixed with the poly(ethylene oxide), the soy protein product containing glycinin and ?-conglycinin and having a fine-stranded network structure. Individual molecules of the poly(ethylene oxide) are entangled in the fine-stranded network structure of the soy protein product, and the poly(ethylene oxide) is at least 50 % amorphous.

Abstract: Composite foams are provided including a metal template and a conformal atomic-scale film disposed over such metal template to form a 3-dimensional interconnected structure. The metal template includes a plurality of sintered interconnects, having a plurality of first non-spherical pores, a first non-spherical porosity, and a first surface-area-to-volume ratio. The conformal atomic-scale film has a plurality of second non-spherical pores, a second non-spherical porosity, and a second surface-area-to-volume ratio approximately equal to the first surface-area-to-volume ratio. The plurality of sintered interconnects has a plurality of dendritic particles and the conformal atomic-scale film includes at least one of a layer of graphene and a layer of hexagonal boron nitride.

Abstract: This invention relates to low-cost, electroactive-polymer incorporated fine-fiber composite membranes for use as overcharge and/or overdischarge protection separators in non-aqueous electrochemical cells and the methods for making such membranes.

Abstract: A porous bi-layer separator is composed of a first separator layer with a contacting array of non-conducting particles overlaid with a second separator layer of a microporous polymer layer, fabricated on the electrode surface of the anode of a lithium-ion battery to form an integral electrode-separator construction. Exemplary bi-layer separators may be fabricated by deposition of solvent-containing slurries of separator particles followed by solvent evaporation to produce the particle layer with subsequent application of polymer solutions followed by controlled evaporation of solvent to produce the microporous polymer layer. The elevated temperature performance of lithium-ion battery cells incorporating such integral electrode-bi-layer separators was demonstrated to exceed the performance of similar cells using commercial and experimental single layer polymer separators.

Abstract: Disclosed are methods for simultaneous application of multiple fuel cell component coatings onto a substrate. The method comprises providing a substrate, and simultaneously coating two or more solutions onto the substrate under laminar flow.

Abstract: The present invention relates to negative-electrode active material for a lithium secondary battery exhibiting excellent capacity property and cycle life property, a method of preparing the same, and a lithium secondary battery using the negative-electrode active material, wherein the negative-electrode active material for a lithium secondary battery comprises a nanotube having a tube shape defined by an outer wall with a thickness of nanoscale, the outer wall of the nanotube comprises at least one non-carbonaceous material selected from the group consisting of silicon, germanium and antimony, and an amorphous carbon layer with a thickness of 5 nm or less is formed on the outer wall of the nanotube.

Abstract: An electrode assembly includes a positive electrode including a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector, a negative electrode including a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector, and a separator between the positive and negative electrodes, the separator including a heat-resistive unit and a lubrication unit, the heat-resistive unit having a heat-resistive material, and the lubrication unit being at an inner front end of the spirally winding separator and having a friction coefficient that is lower than that of the heat-resistive unit.

Abstract: A lithium air battery is provided. The battery comprises: an anode compartment; a cathode compartment supplied with an O2 source; and a lithium ion conductive membrane separating the anode compartment from the cathode compartment. The anode compartment comprises an anode having lithium or a lithium alloy as active metal and a lithium ion electrolyte, while the cathode compartment comprises an air electrode and a sodium ion electrolyte. The anode compartment is separated from the cathode compartment by a lithium ion conductive membrane that is not permeable to sodium ions. In a preferred embodiment the cathode compartment contains an ionic liquid.

Abstract: A polymer including a first repeating unit represented by Formula 1, a polymer composition for a lithium battery including the polymer, an electrode for a lithium battery including the polymer composition, and a lithium battery including the electrode: wherein, in Formula 1, R, R?, A, A?, Y, and Y? are as defined in the specification.

Abstract: Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 ?m (D0.2) in the filler is 1% or more, and the specific surface area of the filler is 5 m2/g or more and less than 10 m2/g. The multilayer porous film satisfies a particular condition.

Abstract: Solid composite electrodes with electrode active layers that include an electrode active material, an optional electron conductive material, an optional binder and other optional additives for batteries which are not fuel cells are provided. The solid composite electrodes are formed by the deposition of an electrode composition (slurry) onto a current collector in one or many layers. The electrode structure may be characterized by a porosity of the electrode composition layer that decreases in a direction from the back side of the layer (close to the current collector) towards the outer side of the layer. The electrode structures can be used in for example chemical sources of electric energy such as primary (non-rechargeable) as well as secondary (rechargeable) batteries.

Abstract: A separator includes a porous substrate, a porous organic-inorganic coating layer formed on at least one surface of the porous substrate, and an organic coating layer formed on the surface of the organic-inorganic coating layer. The porous organic-inorganic coating layer includes a mixture of inorganic particles and a first binder polymer. The first binder polymer contains a copolymer including (a) a first monomer unit including either at least one amine group or at least one amide group or both in the side chain thereof and (b) a (meth)acrylate having a C1-C14 alkyl group as a second monomer unit. The organic coating layer is formed by dispersing a second binder polymer on the surface of the organic-inorganic coating layer, leaving scattered uncoated areas.

Abstract: A cathode material structure and a method for preparing the same are described. The cathode material structure includes a material body and a composite film coated thereon. The material body has a particle size of 0.1-50 ?m. The composite film has a porous structure and electrical conductivity.

Abstract: Disclosed is a technology for preventing electrodes in a secondary battery from being short-circuited with each other. An electrode assembly includes a cathode and anode of which a cathode collector and anode collector are coated with a cathode active material and anode active material, respectively, and a separator disposed between the cathode and the anode. An insulation layer is disposed on a tab part of the cathode collector constituting the cathode. Thus, an insulation layer may be disposed on an end (a tab part) of the cathode collector that is used as a tab of the cathode electrode in the structure of the electrode assembly to prevent the cathode from being physically short-circuited with the anode in the sequentially stacked structure of cathode/separator/anode.