Abstract: To provide a film-packaged battery 1 in which battery element 2 formed by collectively joining a plurality of positive and negative extending portions 2a and 2b to positive and negative electrode leads 3a and 3b for each polarity, is surrounded by laminate films 5 and 6 which are formed by laminating at least heat fusion layer 10 and metal layer 11. Protection member 4a having a melting point lower than that of heat fusion layer 10 is arranged at least between each of joining portions 20a and 20b of positive and negative electrode extending portions 2a and 2b, and heat fusion layer 10 of laminate film 5 which layer face the each of joining portions 20a and 20b.

Abstract: In a fuel cell stack constituting a fuel cell module, electrolyte/electrode assemblies and separators are alternately laminated. An electrolyte/electrode assembly and a terminal separator are arranged on one end of the fuel cell stack in the lamination direction in this order outwardly, and a dummy electrolyte/electrode assembly and a terminal separator are arranged on the other end of the fuel cell stack in the lamination direction in this order outwardly. The dummy electrolyte/electrode assembly is so formed as to have the same shape as the electrolyte/electrode assemblies, while having conductivity but not having a power generation function.

Abstract: An energy storage device package is provided. The energy storage device package includes a bottom cover and a top cover connected to form a hollow chamber to accumulate an electrolyte, a first electrode and a second electrode formed on the top cover and which stretch from the top cover to the hollow chamber to contact the electrolyte, and a safety valve. The first electrode includes an opening and an exhaust channel that extends between the hollow chamber and the opening. When a gas pressure in the hollow chamber is smaller than or equal to a threshold value, the safety valve in the first electrode blocks the exhaust channel. When the gas pressure is larger than the threshold value, the gas pushes to open the safety valve and flows out from the hollow chamber through the exhaust channel and the opening.

Abstract: A lithium cobalt oxide powder for use as an active positive electrode material in lithium-ion batteries, the lithium cobalt oxide powder having a Ti content of between 0.1 and 0.25 mol %, and the lithium cobalt oxide powder having a density PD in g/cm3 dependent on the powder particle size expressed by the D50 value in ?m, wherein PD?3.63+[0.0153*(D50?17)].

Abstract: A battery module is provided with a battery cell and a case. The case houses the battery cell. The case includes a first main face, a second main face, a first battery module coupling structure and a first elastically deforming structure. The first battery module coupling structure is arranged and configured to retain a first additional battery module over the first main face. The first elastically deforming structure is arranged and configured with respect to the first main face to elastically deform inward towards the second main face upon stacking the first additional battery module onto the first main face while the first additional battery module is retained to the first main face of the case by the first battery module coupling structure.

Abstract: A rechargeable battery includes an electrode assembly having electrodes on opposite sides of a separator, a case retaining the electrode assembly, a cap plate coupled with an opening of the case, electrode terminals extending through terminal holes of the cap plate, lead tabs connecting the electrode terminals to the electrode assembly, the electrode terminals being electrically connected to the lead tabs at connection parts, and insulators, the connection parts being embedded in the insulators.

Abstract: An electrode active material, a method of preparing the electrode active material, an electrode including the electrode active material, and a lithium secondary battery including the electrode; the electrode active material comprising a core active material; and a coating layer formed on a surface of the core active material, wherein the coating layer comprises a composition including a compound represented by Formula 1 below and a carbonaceous material, or a first coating layer including a carbonaceous material and a second coating layer including the compound represented by Formula 1 below: LixMy(PO4)z,??Formula 1 where M is selected from the group consisting of alkali metal, alkaline earth metal, a group 13 element, a group 14 element, a transition metal, a rare earth element, and combinations thereof; 1?x?3, 0?y?3, and 1?z?3.

Abstract: A fuel cell comprises an anode, a cathode, and a proton exchange membrane. The anode and cathode can include a catalyst layer which includes a plurality of generally aligned carbon nanotubes. Methods of making a fuel cell are also disclosed.

Abstract: A negative electrode for a lithium rechargeable battery includes a current collector, and a negative active material layer on the current collector, the negative active material layer including a silicon-based active material, a carbon-based active material, and an aqueous additive including an aqueous binder and an agent for increasing viscosity, the silicon-based active material being coated with an organic binder, wherein the aqueous additive is between portions of the silicon-based active material, between portions of the carbon-based active material, or between the silicon-based active material and the carbon-based active material.

Abstract: A rechargeable battery includes an electrode assembly having positive and negative electrodes and a separator interposed between the positive and negative electrodes, a case for receiving the electrode assembly, and a plurality of projections formed on an outer surface of the case.

Abstract: A communication device, and battery there for, are provided. In at least one of the battery and the communication device is provided a magnetic shield portion for routing magnetic flux away from the receiver when the radio is in operation. The magnetic shield portion can be incorporated into at least one of the battery and the communication device. When the battery is inserted into mobile communication device, the magnetic shield portion is located substantially between a battery portion, in the battery, and the receiver.

Abstract: A lithium secondary battery (10) provided by the present invention has an iron oxide film-coated electrode employing a configuration in which an iron oxide film (144) capable of reversibly absorbing and desorbing lithium is retained on an electrically conductive base (142). The electrically conductive base (142) has a roughened surface having a surface roughness Rz of 3 ?m or more, and the iron oxide film (144) is provided on the roughened surface.

Abstract: The present invention relates to an electrochemical cell for generating electrical power that includes an anode, a cathode, a charging electrode and an ionically conductive medium containing at least metal fuel ions and an additive for enhancing at least one electrochemical reaction in the cell. The cell also includes an additive sorbent material in contact with the ionically conductive medium that contains an excess amount of the additive, the sorbent material configured to release the excess additive to the ionically conductive medium as concentration of the additive in the ionically conductive medium is reduced during operation of the cell.

Abstract: A fuel gauge circuit detects a residual quantity of a battery 1 and is disposed on a substrate 20 together with a protection circuit 40 which protects charging/discharging of the battery 1. The fuel gauge circuit includes a voltage monitor terminal T1 disposed on a side facing a positive power-supply terminal 21 of the substrate and connected to each of the positive power-supply terminal 21 and a voltage sensor 31 disposed in the circuit, a voltage through terminal T6 disposed on a side facing the protection circuit, opposite to the side facing the positive power-supply terminal 21, and connected to a voltage monitor terminal T11 of the protection circuit, and a wiring 32 disposed within the circuit to connect the voltage monitor terminal T1 of the fuel gauge circuit to the voltage through terminal T11.

Abstract: One embodiment includes a lithium-ion battery negative electrode including one or more low-melting point alloys that react with lithium.

Abstract: A composite seal having a multilayer elastomeric construction and method for constructing the same is provided. More specifically, the present invention provides a composite seal comprised of a low-durometer elastomer compliant layer coated with, or alternatively encapsulated by, a thin protective layer for securely sealing a bipolar plate and a membrane electrode assembly of a fuel cell. The elastomer compliant layer is preferably a silicone constituent and the thin coat protective layer is preferably a fluoroelastomer or fluoropolymer constituent suitable for bonding to the elastomer compliant layer. The foregoing layers constructing the composite seal are preferably deposited directly onto the aforementioned fuel cell components along a predetermined periphery. The resulting composite seal is thin in construction, resistive to undesired chemical and thermal reactions and provides the necessary compressive compliance without undue stress on the fuel cell assembly.

Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.

Abstract: The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, 0, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FXI0)N—(OX2F) wherein X1 and X2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.

Abstract: A secondary battery includes a bare cell comprising an electrode assembly; a protection circuit module electrically coupled to the bare cell; an upper case including a first case and a second case opposite to the first case joined together, the upper case generally encompassing the protection circuit module; and at least one support rib on at least one of the first case and the second case supporting the protection circuit module.

Abstract: A secondary battery includes an electrode assembly formed by winding two different electrodes and a separator interposed therebetween, a can housing the electrode assembly, a cap assembly at a upper opening of the can; and a gasket interposed between the cap assembly and the can. The gasket has a relaxed condition prior to compression between the cap assembly and an upper portion of the can and a compressed condition after compression between the cap assembly and the upper portion of the can. The gasket includes a sidewall portion bent inwardly from outside of the can when the gasket is in the compressed condition, a bottom portion at a bottom of the sidewall portion and extending inwardly from a periphery of the can, a protruding portion on which the cap assembly is seated, and a concave portion formed between the protruding portion and an inner surface of the sidewall portion.