Abstract: An electrochemical cell comprising an anode, electrolyte or an electrolyte/separator combination, and a nano-structured cathode, wherein the cathode comprises: (a) an integrated nano-structure of electrically conductive nanometer-scaled filaments that are interconnected to form a porous network of electron-conducting paths comprising pores with a size smaller than 100 nm (preferably smaller than 10 nm), wherein the filaments have a transverse dimension less than 500 nm (preferably less than 100 nm); and (b) powder or salt of lithium-containing sulfide (lithium polysulfide) disposed in the pores, or a thin coating of lithium-containing sulfide deposited on a nano-scaled filament surface wherein the lithium-containing sulfide is in contact with, dispersed in, or dissolved in electrolyte liquid and the lithium-containing sulfide-to-filament weight ratio is between 1/10 and 10/1 which is measured when the cell is in a fully discharged state.

Abstract: A positive active material for a rechargeable lithium battery may include a solid solution represented by Chemical Formula 1. xLi2MnO3.(1?x)LiMO2??[Chemical Formula 1] In Chemical Formula 1, 0.1?x?0.6, and M and may be a metal composite compound represented by Chemical Formula 2. MnaCobNic.??[Chemical Formula 2] In Chemical Formula 2, 0.3?a?0.5, 0.05?b?0.3, 0.3?c?0.55, and a+b+c=1.

Abstract: Disclosed is a device for cutting an electrode sheet laminate wherein two or more continuous electrode sheets, in which an electrode active material is applied to one or both surfaces thereof, are laminated, to form a plurality of unit electrode laminates from the electrode sheet laminate, the device including a cutter to cut the electrode sheet laminate at a set position and thereby form unit electrode laminates, and two or more transport grippers arranged at the front of the cutter based on a feed direction of the electrode sheet laminate, the transport grippers drawing and transporting the electrode sheet laminate by one pitch, a size corresponding to the unit electrode laminate according to operation of the cutter, wherein while one of the transport grippers draws and transports the electrode sheet laminate, the remaining transport grippers move to a position for drawing.

Abstract: Provided is a cathode active material including lithium manganese-based oxide, wherein the lithium manganese-based oxide has a layered crystal structure, has a content of manganese (Mn) greater than contents of other transition metal(s), includes 1 mole or more of lithium (Li) with respect to 1 mole of lithium transition metal oxide, has a plateau potential range in which lithium deintercalation as well as oxygen release occurs during initial charging in a high voltage range of 4.4 V or more, has domains included in the layered crystal structure exhibiting electrochemical activity due to a structural change in a potential range of 3.5 V or less after the initial charging, and includes conductive materials for improving electrical conductivity of the lithium manganese-based oxide in a potential range of 3.5 V or less after the initial charging.

Abstract: In a fuel cell having a separator in which main cooling water channels are formed, a separator for another unit cell stacked on the cooling water channel formation surface side of the separator, and a second sealing member interposed between the separators and to seal a cooling medium flowing in the main cooling water channels, an outer peripheral rib for regulating the flow of cooling water to the second sealing member side is provided inside relative to the second sealing member in the separator surface direction in order to improve the efficiency of cooling with the cooling medium.

Abstract: A battery case for a secondary battery and a secondary battery using the same. The secondary battery includes an electrode assembly and the battery case. The electrode assembly is composed of a first electrode plate, a second electrode plate and a separator interposed therebetween. The battery case is provided with an accommodating portion that accommodates the electrode assembly. In the secondary battery, the depth of the accommodating portion is approximately 70% to approximately 80% of the thickness of the electrode assembly.

Abstract: A bipolar plate which can be produced particularly economically for a fuel cell, with which a high degree of efficiency is guaranteed over a long service life. The bipolar plate has a core layer consisting of a steel material, the surfaces of said core layer, which are associated with the respective electrolyte carriers of the fuel cell, having a corrosion protection layer, protecting the core layer against corrosion. The corrosion protection layers consist of a metal material and extend on both sides over the whole surface of the core layer. At the same time the corrosion protection layers are in turn coated over the whole surface with an electrically conductive functional coating, which is essentially entirely impermeable for the metal ions emerging from the core layer and/or the corrosion protection layers. The invention likewise relates to at least one fuel cell comprising a bipolar plate according to the invention.

Abstract: Embodiments of this disclosure relate to battery packs and/or holsters and, more particular, to an external battery pack and/or holster for mobile electronic devices.

Abstract: A fuel cell stack (10) comprises a plurality of fuel cells each with a chamber (K) for electrolyte with at least one inlet and at least one outlet, and at least one header (30) to supply electrolyte to all the cells in parallel, and means (14) to collect electrolyte that has flowed through the cells. For each cell, the electrolyte outlets (34) feed into an electrolyte flow channel arranged such that in use there is a free surface of electrolyte within the electrolyte flow channel, the electrolyte flow channel being separate from the corresponding electrolyte flow channels for other cells, but such that the free surfaces of all the electrolyte flow channels are at a common pressure. Electrolyte is maintained at a constant depth in this open flow channel by a weir (38), and then flows over the weir to trickle or drip down the outside of the stack.

Abstract: The present invention refers to a separator, comprising a porous substrate having multiple pores; a porous coating layer formed on at least one area selected from at least one surface of the porous substrate and the pores of the porous substrate, and comprising multiple inorganic particles and a binder polymer, the binder polymer being existed on a part or all of the surface of the inorganic particles to connect and immobilize the inorganic particles therebetween; and microcapsules dispersed in at least one area selected from the pores of the porous substrate and pores formed by vacant spaces between the inorganic particles present in the porous coating layer, and containing therein an additive for improving the performances of an electrochemical device, and an electrochemical device having the same.

Abstract: Disclosed herein is a cooling member mounted between battery cells to remove heat generated from the battery cells during charge and discharge of the battery cells, wherein the cooling member includes a plate-shaped heat dissipation fin disposed between the battery cells in a state in which opposite main surfaces of the heat dissipation fin are in tight contact with the battery cells and a coolant conduit configured to have a hollow structure through which a coolant flows, the coolant conduit thermally contacting the heat dissipation fin, the coolant conduit being located at an outside of an electrode assembly receiving part of each of the battery cells when the heat dissipation fin is disposed between the battery cells.

Abstract: Disclosed is a composite of enzyme and carbon structure. In the composite of enzyme and carbon structure, a significantly large amount of an enzymeis immobilized on the surface of carbon structures without the formation of chemical bonds (particularly, covalent bonds) between the enzyme molecules and the carbon structures. Since the surface of the carbon structures does not need to be modified to form chemical bonds, the electrical conductivity of the composite of enzyme and carbon structure is not reduced and the stability of the composite is maintained high even after the passage of a long time in various environments. Therefore, the use of the composite of enzyme and carbon structure enables the fabrication of various devices, such as biosensors and biofuel cells, with markedly improved performance as compared to the use of conventional enzyme/carbon structure composites.

Abstract: The invention provides a cathode for an electrochemical cell comprising: a first particulate material having particles comprising a mixture of at least one alkali metal halide and at least one metal; and a second particulate material comprising at least one alkali metal halide, wherein the second particulate material has a particle size smaller than that of the first particulate material.

Abstract: A method for manufacturing a battery shell of an electronic device includes providing a first metal component, providing a plastic casing, joining the first metal component to the plastic casing together, providing a battery pack, the battery pack including a main body and a connection part, disposing the battery pack on the first metal component, and fixing the connection part on the plastic casing. The thickness of the first metal component is A, the thickness of the plastic casing is B. The thickness of said plastic casing satisfies 0.4 mm?B?0.8 mm, and the total thickness of the first metal component and the plastic casing satisfies 0.8 mm?A+B?1.6 mm. The connection part is disposed on a side of the main body.

Abstract: In one example, the disclosure is directed to a medical device comprising an outer housing and a battery within the outer housing, where the battery is configured to supply power to one or more electronic components of the medical device. The battery comprises a first electrode, a second electrode, an electrolyte, and a multilayer battery enclosure. The multilayer battery enclosure comprises a substantially cylindrical member including a continuous multilayer body defining a cavity between a first end and a second end, and wherein at least one of the first end and second end are sealed to enclose the first electrode, second electrode, and the electrolyte within the cavity of the multilayer battery enclosure.

Abstract: Disclosed is a cable-type secondary battery comprising at least one inner electrode layer including an inner electrode active material formed on a surface of an inner current collector having a horizontal cross section of a predetermined shape and extending in a lengthwise direction, a separation layer formed to surround the inner electrode layer, and an outer electrode layer formed to surround the separation layer and including an outer electrode active material formed on a surface of an outer current collector, and the cable-type secondary battery further comprises a first connection terminal that is electrically connected to the outer current collector and formed at one end of the cable-type secondary battery, and a second connection terminal that is electrically connected to the inner current collector and formed at the other end of the cable-type secondary battery.

Abstract: Ferrous (II) phosphate (Fe3(PO4)2) powders, lithium iron phosphate (LiFePO4) powders for a Li-ion battery and methods for manufacturing the same are provided. The lithium iron phosphate powders are represented by the following formula (II): LiFe(1-a)MaPO4??(II) wherein, M, and a are defined in the specification, the lithium iron phosphate powders are composed of plural flake powders, the length of each of the flake powders is 0.1-10 ?m, and a ratio of the length and the thickness of each of the flake powder is in a range from 11 to 400.

Abstract: Provided is a reverse connection preventing structure in a battery-driven object detection device, which has a simple structure capable of preventing reverse connection of even a battery whose projecting positive electrode is relatively lower in height. The structure has a holder for holding the battery including a first terminal for electrically connecting to a projecting positive electrode and a second terminal for electrically connecting to a negative electrode. The first terminal is formed in a printed circuit board. On the printed circuit board, an insulating member of less than 0.5 mm in thickness are provided around the circumference of the first terminal in such a manner as to allow the first terminal to come in contact with the positive electrode of the battery which is mounted correctly and as to prevent the first terminal from coming in contact with the negative electrode of the battery which is mounted reversely.

Abstract: Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof.

Abstract: An electrode is provided with a metal terminal extending from a battery module main body, a bolt which has an expanded section configuring a retaining section at a rear end portion and penetrates the metal terminal upward, and an insulating body which insulates the metal terminal and the battery module case one from the other. The insulating body is provided with a drop preventing section which abuts at least a lower surface of the expanded section of the bolt and prevents the bolt from dropping from the metal terminal.