Abstract: To provide a novel structure of a separator in a secondary battery. A nonaquesous secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, a first separator, and a second separator. The first separator and the second separator are provided between the positive electrode and the negative electrode. The first separator is provided with a first pore, the second separator is provided with a second pore, and the size of the first pore is different from the size of the second pore. Furthermore, the proportion of the volume of the first pores in the first separator is different from the proportion of the volume of the second pores in the second separator.

Abstract: A rechargeable battery includes: an electrode assembly formed by disposing first and second electrodes on either side of each separator, the first and second electrodes each having coated regions and uncoated region tabs; a case for accommodating the electrode assembly; and a cap plate attached to an opening of the case to close and seal the case and having a vent plate formed integrally with a vent hole, wherein the vent plate is formed beyond the thickness of the cap plate.

Abstract: An insert molding component includes a primary molding section with a concave portion formed on one surface thereof, an insert component disposed on a bottom side of the concave portion of the primary molding section, a heat-insulating component disposed in the concave portion of the primary molding section and disposed on a top of the insert component, and a secondary molding section disposed in contact with the one surface of the primary molding section.

Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a first current collector including a material characterized by a maximum corrosion current in an aqueous electrolyte below or about 2 mA/cm2. The batteries may include a cathode material coupled with the first current collector. The batteries may include a second current collector, and may include an anode material coupled with the second current collector. The batteries may also include an aqueous electrolyte characterized by a pH greater than or about 14.

Abstract: A method for producing silicon-based anodes for secondary batteries carries out the following steps for producing an anode: —depositing a silicon layer on a metal substrate having grain boundaries, wherein the silicon layer has a first boundary surface directed towards the metal substrate, —heating the metal substrate using a heating unit to a temperature between 200° C. and 1000° C., —conditioning the region of the second boundary surface of the silicon layer that is facing away from the metal substrate using an energy-intensive irradiation during the heating, —generating polyphases in the region of the silicon layer and the metal substrate, made up of amorphous silicon and/or crystalline silicon of the silicon of the silicon layer and of crystalline metal of the metal substrate and of silicide and—generating crystalline metal of the metal substrate.

Abstract: A flexible battery may include: an electrode assembly having one or more unit cells each of the unit cells including a pair of electrode plates having different polarities, a separator interposed between the respective electrode plates and electrode tabs that protrude from the respective electrode plates; a pair of electrode leads connected to electrode tabs; and a strengthening tab fixed on any one electrode lead connection tab among the electrode tabs.

Abstract: Disclosed is a battery housing. The battery housing includes a plurality of covers coupled to each other to form a space in which the battery is accommodated, the plurality of covers having a first cover and a second cover disposed adjacent to the first cover and coupled to the first cover; and a coupling rod configured to couple the first cover and the second cover.

Abstract: A non-aqueous liquid electrolyte secondary battery using negative-electrode active material having Si, Sn and/or Pb, with high charge-capacity, superior characteristics including discharge-capacity retention rate over long is provided. Its non-aqueous liquid electrolyte contains carbonate having unsaturated bond and/or halogen and compounds like LiPF6 and/or LiBF4 (first lithium salt) and lithium salt different from said first one, represented by formula below (second lithium salt). Li1(?mXan) (In the formula, l, m and n represent integers of 1 to 10, 1 to 100 and 1 to 200, respectively. ? represents boron, carbon, nitrogen, oxygen or phosphorus. Xa represents functional group having atom selected from 14th to 17th groups of periodic table at its binding-position to ?. Two or more of Xa may be connected to each other to form a ring structure. However, such a case where a is boron and Xa is compound represented by (CiH2(i-2)O4)(CjH2(j-2)O4) is omitted (i and j represent integers of 2 or larger.).

Abstract: A method of manufacturing a foldable display device includes providing a first structure including a first flexible member, a first release film having a first release force, and a lower release film having a second release force, detaching the first release film without detaching the lower release film, providing a second structure including a second flexible member, a second release film having a third release force, and a first adhesive layer on the first flexible member, and detaching the lower release film without detaching the second release film, in which an adhesive force of the first adhesive layer to the first or second flexible members is greater than the second and third release force, the second release force is larger than the first release force by about “n” times and the third release force by about “m” times, “n” and “m” each being a real number larger than about one.

Abstract: Square section liquid metal batteries (LMBs) with a grid device to suppress instabilities of fluids. The LMBs include a shell, negative current collector, negative material, metallic nets/plates, grid device, electrolyte, positive material, rectangular holes on partitions of grid device, and positive current collector. The positive material, electrolyte, and negative material are filled in the shell and automatically stratified from bottom to top according to the density from large to small. The negative current collector is linked with negative material, and the positive current collector is linked with positive material. The grid device is composed of partitions which cross each other and pass through the negative material, the electrolyte vertically in sequence, and extend inside the positive material. There are rectangular holes opened on the grid device, and the vertical height of each rectangular hole is larger than the biggest displacement of electrolyte during charging and discharging processes.

Abstract: A battery having a protective isolation structure is disclosed comprising a first current collecting layer, a first active material layer, a spacer layer, a first glue frame, a second active material and a second current collecting layer. The first active material layer is disposed on the first current collecting layer. The spacer layer is disposed on the first active material layer. The area of the spacer layer is smaller than the area of the first active material layer so that a part of the first active material layer is exposed outside the spacer layer. The first glue frame is covering the top surface of the first active material layer exposed from the spacer layer and has a protrusion disposed on the surface of the spacer layer. The second active material layer is disposed on the surface of the spacer layer and the protrusion. The second current collecting layer is disposed on the second active material layer.

Abstract: Disclosed herein is a pouch-shaped secondary battery configured to have a structure in which a unit cell, including an electrode assembly constituted by a positive electrode and a negative electrode, stacked in the state in which a separator is interposed between the positive electrode and the negative electrode, electrode tabs, and electrode leads, or a cell assembly, including two or more stacked unit cells, is mounted in a pouch-shaped case, wherein the pouch-shaped secondary battery includes a unidirectional structure in which electrode terminals oriented in two directions are changed to electrode terminals oriented in one direction. In the case in which a battery pack is constituted using a bidirectional cell, a large space is required, whereby the energy density of the battery pack is reduced. The disclosed pouch-shaped secondary battery has the effect of solving the above problem.

Abstract: In a battery pack for an electric vehicle, by fixing a lid member to plural fixing portions provided on a bottom wall of a battery case, a cooling medium jacket is formed between a lower face of the bottom wall and an upper face of the lid member. Thickness of the battery case in the fixing portion is formed larger than thickness thereof around the fixing portion. The fixing portion includes a bulge portion bulging upward toward a lower face of a battery module. The lower face thereof includes a recess portion recessed upward, and a projecting portion projecting downward. Since the bulge portion is disposed at a position opposing the recess portion. Accordingly, it is possible to form the cooling medium jacket by strongly fixing the lid member to the lower face of the bottom wall while avoiding increase in the vertical dimension of the battery pack.

Abstract: An electrolyte structure for use in a solid oxide electrochemical device includes a first solid electrolyte and a metal support embedded in the first solid electrolyte such that the first solid electrolyte forms an anode-facing layer that covers an anode-facing surface of the metal support, a cathode-facing layer that covers a cathode-facing surface of the metal support, and two opposing side layers that cover side surfaces of the metal support to form a continuous path around the metal support.

Abstract: The invention relates to a method for preparing a positive electrode for a lithium-sulfur battery, comprising the following steps: a) a step of preparing a first mixture by placing a carbon additive such as carbon black and/or activated carbon, a carbon additive chosen from carbon nanotubes, carbon fibres and the mixtures of the two, a carbon organic binder, and a solvent in contact; b) a step of carbonising said mixture, by means of which the result is a powder comprising agglomerates of carbon black and/or activated carbon and of carbon nanotubes and/or carbon fibres; c) a step of placing the powder obtained in b) in contact with sulfur thus forming a second mixture; d) a step of dispersing said second mixture in an organic binder; e) a step of depositing the dispersion thus obtained on a substrate; and f) a step of drying said dispersion thus deposited.

Abstract: A water treatment apparatus includes: a first granular electrode member and a second granular electrode member stored in a water treatment unit and provided so as to be separated from each other; a power supply unit which applies voltage between the first granular electrode member and the second granular electrode member so that ions contained in treatment target water supplied from one side of the water treatment unit are adsorbed to the first granular electrode member and the second granular electrode member; and a washing water supply pump which causes washing water to flow from the other side of the water treatment unit to the one side of the water treatment unit, thereby washing the first granular electrode member and the second granular electrode member, wherein the first granular electrode member and the second granular electrode member each include a plurality of flowable granular electrode members.

Abstract: The present invention relates to a metal oxide powder, a method of preparing the same, and a lithium secondary battery using the same, which comprises: a metal oxide powder is represented by Formula (1), Lix(M1-m-zAmDz)Ot??Formula (1) in the above Formula (1), 0.85?x?1.2, 0?m?0.01, 0<z?0.04, 1.85?t?2.2, M is selected from the group consisting of Ni, Co, Mn and combinations thereof, A is selected from the group consisting of Mg, Ca, Sr, Ba and combinations thereof, D is selected from the group consisting of Ti, Zr, Ce, Ge, Sn and combinations thereof, and E is an average oxidation number of A and D, and E>3.5.

Abstract: A secondary battery includes a main body accommodating an electrode assembly, a wing portion bent in at least one portion, and a reinforcement member between the main body and the wing portion. Accordingly, as an external impact is blocked, the secondary battery has reduced danger of ignition, rupture, or explosion due to the external impact.

Abstract: A method for testing an internal short circuits in an electrochemical cell is provided. A transistor is implanted in the cell, and it is electrically connected to a controllable voltage source. The transistor is joined between positive and negative components of the cell. The transistor is maintained at high resistance before start of testing. The voltage source is used to reduce electrical resistance in the transistor to simulate an internal short circuit in the electrochemical cell. Thermal runaway propagation in the cell is measured.

Abstract: According to one embodiment, an active material is provided. This active material includes active material particles containing orthorhombic Na-containing niobium titanium composite oxide, and satisfies the following formula (1): 1?A5/A0??(1) where A5 is a mole content ratio of a Li mole content L5 to a total of a Ti mole content T5 and a Nb mole content N5, and A0 is a mole content ratio of a Li mole content L0 to a total of a Ti mole content T0 and a Nb mole content N0.

Abstract: A battery terminal includes: a main body unit; a penetration member that is arranged in a manner extending from an end side of the main body unit to the other end side of the main body unit across slits along a tightening direction Y, includes an abutting portion formed in the end side, and has a threaded hole and a taper forming end portion provided with first tapered surfaces formed in the other end side; a fastening member threadedly engaged with the threaded hole; and a pressing force converting member that converts fastening force in an axial direction X generated between the fastening member and the penetration member with rotation of the fastening member around the axial direction X into pressing force in the tightening direction Y pressing the main body unit between the abutting portion and the pressing force converting member along the tightening direction Y.

Abstract: A foldable display device including a panel pad unit, a first polymer layer disposed on the panel pad unit and including a first repeated subunit organic compound, a rigid layer disposed on the first polymer layer, a second polymer layer disposed on the rigid layer and including a second repeated subunit organic compound, a panel light-emitting unit disposed on the second polymer layer, and a third polymer layer disposed on the panel light-emitting unit and including a third repeated subunit organic compound.

Abstract: A battery system including: a lithium-ion cell including a positive electrode including a first metal oxide, an electrolyte, and a negative electrode including a second metal oxide having an electrochemical redox potential of 0.5 volt to 3 volts versus lithium; and an electrical circuit including a switchable component connecting the positive electrode and the negative electrode, wherein the switchable component provides a shunt between the positive electrode and the negative electrode in a first switch position, and wherein the electrical circuit is configured to provide a voltage of 0.1 volt or less between the positive electrode and the negative electrode when the switchable component is in the first switch position.

Abstract: Provided herein is an apparatus for storing electric energy including at least one electrochemical cell having an anode space and a cathode space that are separated by a solid electrolyte, a first store for anode material that is connected to the anode space, and a second store for cathode material that is connected to the cathode space. The cathode space is also connected to a third store. The second and third stores are connected to one another by means of a gas conduit that opens into the upper region of the second and third stores. A conveying apparatus for gas having a reversible conveying direction is accommodated in the gas conduit. Further provided herein is a method of operating the apparatus.

Abstract: A battery pack includes at least one battery cell; a protective circuit module mounted on a first surface of a battery cell of the at least one battery cell; and a top case covering a first end of the battery cell where the protective circuit module is mounted, and the protective circuit module includes a broad width area and a narrow width area, and an opening is formed on the top case corresponding to the broad width area of the protective circuit module.

Abstract: To provide a secondary battery that can be mounted on a substrate and can easily select a voltage to be output in manufacture and a manufacturing method thereof. A secondary battery in which small cells with substantially the same form are stacked and whose voltage to be output is easily selected in manufacture by changing the number of stacked layers is manufactured. In the cell, an electrolytic solution including a spacer and a polymer is used to keep at least a certain distance between the positive electrode active material layer and the negative electrode active material layer with the spacer. Furthermore, the electrolytic solution is made to gelate by the polymer to be an electrolytic solution that can be formed in the form of a sheet. Furthermore, the positive electrode active material layer and the negative electrode active material layer are formed using a printing method typified by screen printing.

Abstract: In general, according to one embodiment, there is provided an active material. The active material contains a composite oxide having an orthorhombic crystal structure. The composite oxide is represented by a general formula of LixM11?yM2yTi6?zM3zO14+?. In the general formula, M1 is at least one selected from the group consisting of Sr, Ba, Ca, and Mg; M2 is at least one selected from the group consisting of Cs, K, and Na; M3 is at least one selected from the group consisting of Al, Fe, Zr, Sn, V, Nb, Ta, and Mo; and x is within a range of 2?x?6, y is within a range of 0<y<1, z is within a range of 0<z?6, and ? is within a range of ?0.5???0.5.

Abstract: The present disclosure is directed to providing stable highly active catalysts for use in production of hydrogen from water.

Abstract: An electrical storage system is provided that has a thickness of less than 2 mm, which includes at least one sheet-type discrete element. The sheet-type discrete element exhibits high resistance against an attack of transition metals or transition metal ions, in particular titanium, wherein the sheet-type discrete element contains titanium. The invention also relates to a sheet-type discrete element for use in an electrical storage system, which exhibits high resistance to the attack of transition metals or of transition metal ions, in particular titanium.

Abstract: An electrode having a planar electrode body with a plurality of hexagonally shaped through-holes formed therein. The planar electrode body is configured for use in a polar, protic, or aprotic solvent of a Hydro-Pyroelectrodynamic (“H-PED”) energy storage device. The electrode may be constructed using a method that includes applying a layer of graphene to an outer surface of the planar electrode body, and annealing the outer surface of the planar electrode body after the layer of graphene has been applied thereto.

Abstract: An method for manufacturing a electronic device is provided having a current collector capable of a high specific charge collecting area and power, but is also achieved using a simple and fast technique and resulting in a robust design that may be flexed and can be manufactured in large scale processing. To this end the electronic device comprising an electronic circuit equipped with a current collector formed by a metal substrate having a face forming a high-aspect ratio structure of pillars having an interdistance larger than 600 nm. By forming the high-aspect structure in a metal substrate, new structures can be formed that are conformal to curvature of a macroform or that can be coiled or wound and have a robust design.

Abstract: Systems and methods drawn to an electrochemical cell comprising a low temperature ionic liquid comprising positive ions and negative ions and a performance enhancing additive added to the low temperature ionic liquid. The additive dissolves in the ionic liquid to form cations, which are coordinated with one or more negative ions forming ion complexes. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. The ion complexes improve oxygen reduction thermodynamics and/or kinetics relative to the ionic liquid without the additive.

Abstract: A rechargeable battery pack is disclosed. In one aspect, the battery pack includes a battery cell including an electrode terminal in a cap plate and configured to perform charging and discharging operations, a protection element connected to the electrode terminal via a first connecting tab and a protection management package connected to a second connecting tab of the protection element and connected to the cap plate via an electrode tab. The battery pack also includes a molding portion enclosing the protection element and the protection management package; and an adhesive member disposed between the molding portion and the battery cell to attach them, wherein the first connecting tab has a bending portion bent between the electrode terminal and the protection element so as to set a height difference.

Abstract: Provided is a method that makes it possible to determine more accurately whether or not a spent nonaqueous electrolyte secondary battery is reusable. The method for sorting a reusable nonaqueous electrolyte secondary battery, which is disclosed herein, includes: a step of preparing a spent nonaqueous electrolyte secondary battery having an electrode body in which a positive electrode and a negative electrode are laminated; a step of vibrating the prepared nonaqueous electrolyte secondary battery in a direction perpendicular to the lamination direction of the positive electrode and the negative electrode; a step of acquiring a value of an internal resistance of the nonaqueous electrolyte secondary battery subjected to vibrations; and a step of determining whether or not the nonaqueous electrolyte secondary battery is reusable by comparing the acquired value of the internal resistance with a predetermined threshold of the internal resistance.

Abstract: In a manufacturing method of a sealed battery, a positive terminal is provided on one end portion of a lid and a negative terminal is provided on another end portion of the lid. An end surface on the positive terminal side of the lid is inserted into an opening, and made to contact an inside wall of the opening. Then, an end surface on the negative terminal side of the lid is inserted into the opening, and the battery can and the lid are welded together. Therefore, even if metal foreign bodies get into the battery can at the time of manufacture, they will get in on the negative terminal side, so a decrease in voltage of the sealed battery is able to be suppressed.

Abstract: A cathode composition for a sodium-ion battery. The cathode composition may have the formula NaCr1-xMxO2, where M is one or more metal elements, and x is greater than 0 and less than or equal to 0.5.

Abstract: The present invention is directed to lithium-sulfur batteries exhibiting a high capacity, high cycle life with low production cost and improved safety.

Abstract: A system for rolling electrode plates includes: supplying units for supplying first and second electrode plates and separators; electrode processing units for forming first electrode tabs having gradually increasing intervals between tabs on one side of the first electrode plate and second electrode tabs having gradually increasing intervals between tabs on one side of the second electrode plate by performing cutting processes on the sides of the first and second electrode plates; an assembling unit for forming an electrode assembly by rolling the first and second electrode plates and the separators; and buffer units for temporarily storing the first and second electrode plates to compensate for differences in processing rates and base material transfer amounts between the electrode processing units and the assembling unit, and for transmitting the temporarily stored first and second electrode plates to the assembling unit.

Abstract: The present invention provides a nanostructured metal oxide material for use as a component of an electrode in a lithium-ion or sodium-ion battery. The material comprises a nanostructured titanium oxide or vanadium oxide film on a metal foil substrate, produced by depositing or forming a nanostructured titanium dioxide or vanadium oxide material on the substrate, and then charging and discharging the material in an electrochemical cell from a high voltage in the range of about 2.8 to 3.8 V, to a low voltage in the range of about 0.8 to 1.4 V over a period of about 1/30 of an hour or less. Lithium-ion and sodium-ion electrochemical cells comprising electrodes formed from the nanostructured metal oxide materials, as well as batteries formed from the cells, also are provided.

Abstract: Provided is a lithium battery including: a positive electrode, a negative electrode, and an organic electrolytic solution, wherein the negative electrode has a metal/metalloid nanostructure, and the organic electrolytic solution includes a lithium sulfonimide-based compound.

Abstract: A energy storage device includes: an electrode assembly that includes a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate being mutually insulated; a case that houses the electrode assembly; and a conductive member electrically coupled to the electrode assembly in the case. The conductive member includes a main body part that has a central axis in a direction passing through a wall surface of the case, and a conductive connection part that protrudes from the main body part in a direction intersecting with the central axis. The main body part includes a swage portion disposed at one end portion of the main body part and inserted into the wall surface of case, and a non-circular head disposed at another end portion of the main body part.

Abstract: A motor vehicle battery has a plurality of battery modules (12). Each battery module (12) is fastened to housing walls (15) of a battery housing (11). The battery housing (11) has at least two housing modules (17, 18) positioned above one another and formed with housing module walls (19, 20). At least some of the mutually adjoining housing module walls (19, 20) interengage in the manner of toothing to form the housing walls (15, 16).

Abstract: [Object] Provided is a means for improving cycle characteristics by suppressing electrode deterioration resulting from non-uniformity of voltage across an electrode plane in a high-capacity and large-area non-aqueous electrolyte secondary battery that includes lithium nickel-based composite oxide as a positive electrode active substance.

Abstract: A secondary battery includes: a case; an electrode assembly housed in the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode having a coating portion coated with a first active material and a non-coating portion absent the first active material; and a collector plate including first and second collector plates enmeshed together with the non-coating portion therebetween.

Abstract: A method for determining an operating state (e.g., state-of-charge or state-of-health) and/or generating management (charge/discharge) control information in a system including an electrochemical energy device (EED, e.g., a rechargeable Li-ion battery, supercapacitor or fuel cell) that uses optical sensors to detect the intercalation stage change events occurring in the EED. The externally or internally mounted optical sensors measure operating parameter (e.g., strain and/or temperature) changes of the EED during charge/recharge cycling, and transmit measured parameter data using light signals sent over optical fibers to a detector/converter. A processor then analyzes the measured parameter data, e.g., using a model-based estimation process, to detect intercalation stage changes (i.e., crystalline structure changes caused by migration of guest species, such as Li-ions, between the EED's anode and cathode), and generates the operating state and charge/discharge control information based the analysis.

Abstract: A packaging material for a cell including a layered film in which at least a base-material layer, an adhesive layer, a metallic layer, and a sealant layer are layered in the stated order. The packaging material for a cell including a layered body in which at least a base-material layer, an adhesive layer, a metallic layer, and a sealant layer are layered in the stated order, wherein the packaging material for a cell can be imparted with highly exceptional moldability, and dramatically less prone to pinholing and cracking during molding by using, as the metallic layer, an aluminum foil having 0.2% yield strength of 58-121 N/mm2 when a tensile test is performed in the direction parallel to the rolling direction.

Abstract: Disclosed is an organic/inorganic composite porous film comprising: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. A method for manufacturing the same film and an electrochemical device including the same film are also disclosed. An electrochemical device comprising the organic/inorganic composite porous film shows improved safety and quality.

Abstract: Provided is a non-aqueous electrolyte secondary battery having a high capacity and an improved cycle life. The battery includes an electrode group and a non-aqueous electrolyte, and has a volume energy density of 650 Wh/L or more. The electrode group includes wound positive and negative electrodes with a separator interposed therebetween. The positive and negative electrodes each include a current collector and a material mixture layer adhering thereto. The positive and negative electrode material mixture layers each have a porosity Pp of 22% or less and porosity Pn of 25% or less. The ratio VE/VT of a volume VE of the electrolyte to a total VT of the pore volumes of the positive and negative electrode material mixture layers, and the separator is 1 to 1.5. The difference between contact angles CAp and CAn of the positive and negative electrodes with respect to the non-aqueous electrolyte is 23° or less.

Abstract: Provided is a battery pack that includes: unit batteries disposed in parallel with each other and the unit batteries are prismatic type; a connecting substrate for electrically coupling the unit batteries; a plurality of tabs which extend from the connecting substrate, electrically connect the unit batteries and the connecting substrate, and are bent so that the connecting substrate is adjacently disposed to first surfaces of the unit batteries; a protection circuit module electrically connected with the connecting substrate; and a lead which extends from the protection circuit module, electrically connect the connecting substrate and the protection circuit module and are bent so that the protection circuit module is adjacently disposed to second surfaces of the unit batteries.

Abstract: A rechargeable lithium battery includes a positive active material for intercalating and deintercalating lithium ions; a negative electrode including a negative active material for intercalating and deintercalating lithium ions; and a polymer electrolyte including a polymer, a non-aqueous organic solvent and a lithium salt. The rechargeable lithium battery has a battery capacity per unit area of the positive electrode from about 3.3 mAh/cm2 to about 2.8 mAh/cm2. The polymer includes a first monomer represented by the following Chemical Formula 1 and a second monomer represented by at least one of the following Chemical Formulae 2 to 7 at a weight ratio of about 85:15 to about 50:50 of the first monomer to the second monomer. In the above Chemical Formulae 1 to 7, each compound is as described in the detailed description.