Abstract: Disclosed herein is a battery pack wherein a rectangular battery having an electrode assembly and an electrolyte contained therein in a sealed state is received in a pack case, and an insulating material is filled in a space defined between the inner surface of the upper end of the pack case and the upper end of the battery, whereby the battery pack is manufactured with a reduced thickness, the assembly process of the battery pack is very simple, and short circuit of the battery pack or suspension of power supply from the battery pack, which may occur as the battery is moved, is effectively prevented even when the battery pack falls down or external impacts are applied to the battery pack.

Abstract: A material for a solid oxide fuel cell, the material including a lanthanum metal oxide having a perovskite-type crystal structure; and a ceria metal oxide, wherein the ceria metal oxide includes at least one material selected from the group consisting of metal oxides represented by Formula 1 below and metal oxides represented by Formula 2: (1?a?b)Ce1-xAxO2-?+aB2O5+bBO3??Formula 1 Ce1-x-yAxByO2-???Formula 2 wherein 0?a?0.01, 0?b?0.02, 0<2a+?0.02, 0<x<0.3, 0<y?0.02, ? and ? are selected so that the metal oxides of Formulas 1 and 2, respectively, are both electrically neutral, A is a rare earth metal, and B is a 5-valent metal or a 6-valent metal.

Abstract: Provided is a battery which can reduce expansion caused by gas emission when stored at high temperature. A secondary battery (1) is constructed such that a flat wound electrode (20) as a power generating element is sandwiched between exterior members (30a, 30b), having adhesion layers (40a, 40b) interposed therebetween. The adhesion layers (40a, 40b) are, for example, two-sided adhesive tapes and have a structure such that adhesive layers are formed on both surfaces of a thin plate-shaped support layer. The support layer is preferably made of polypropylene or polyimide. The adhesion layers (40a, 40b) are composed of maleated polypropylene whose melting point is preferably in a range from 100° C. to 200° C., more preferably, in a range from 140° C. to 180° C.

Abstract: A device including a metal substrate and a ceramic substrate including a back-tapered groove separated from each other by a sealed flexible link. The link includes: a metal element including an end connected to the metal substrate and at another end housed in the groove of the ceramic substrate, the metal element being elastically deformable both in the groove along a direction radial to the groove and, in the separation space between the metal substrate and the ceramic substrate along the separation direction, and a joint-forming mass with a greater thermal expansion coefficient than that of the ceramic substrate and adhesively bonded to the end of the metal element housed in the back-tapered groove, the joint fitting with direct contact a portion of the height of convergent sidewalls of the groove.

Abstract: In order to reliably avoid freezing in the generation stop state during intermittent operation, in the control device of the present invention that controls a fuel cell system to operate intermittently by switching between the generation state and the generation stop state of a fuel cell, it is determined whether to stop the generation operation during intermittent operation based on at least the temperature of a specific component that contains moisture from among the components constituting the fuel cell system. A valve, a passage, or a humidifier arranged on a flow path for a fuel gas or oxidizing gas may be selected as the specific component mentioned above. The temperature of the specific component is measured either directly by a temperature sensor provided corresponding to the specific component or indirectly based on either the operating state of the fuel cell system or the external air temperature.

Abstract: The present invention relates to metal foil encapsulation of an electrochemical device. The metal foil encapsulation may also provide contact tabs for the electrochemical device. The present invention may also include a selectively conductive bonding layer between a contact and a cell structure.

Abstract: The present invention relates to metal film encapsulation of an electrochemical device. The metal film encapsulation may provide contact tabs for the electrochemical device. The present invention may also include a selectively conductive bonding layer between a contact and a cell structure. The present invention may further include ways of providing heat and pressure resilience to the bonding layer and improving the robustness of the protection for the cell structure.

Abstract: The present invention discloses a reserve battery having an all solid state thin film battery (5). The reserve battery includes: a housing (1) made of a conductive material; an insulation coating (2) formed on the inner surface of the housing (1); an all solid state thin film battery formed in the housing; a switching System (3) disposed between the housing (1) and the all solid state thin film battery; and an external (6) terminal electrically connected to the all solid state thin film battery, for externally providing electrical connection through the opened surface of the housing. The reserve battery overcomes disadvantages of a general reserve battery using an electrolyte solution.

Abstract: A method of stabilizing a metal oxide or lithium-metal-oxide electrode comprises contacting a surface of the electrode, prior to cell assembly, with an aqueous or a non-aqueous acid solution having a pH greater than 4 but less than 7 and containing a stabilizing salt, for a time and at a temperature sufficient to etch the surface of the electrode and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode remains unchanged during the acid treatment. The stabilizing salt comprises fluoride and at least one cationic material selected from the group consisting of ammonium, phosphorus, titanium, silicon, zirconium, aluminum, and boron.

Abstract: The present invention provides a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound, as well as an electrochemical device comprising the cathode. Also, the present invention provides an electrochemical device comprising: (1) a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound; (2) an anode having a passivation layer formed by a compound selected from the group consisting of vinylene carbonate, its derivative and an ether compound; and (3) an electrolyte solution containing a lithium salt and a solvent.

Abstract: The present invention provides an electrolyte solvent for batteries, which comprises fluoroethylene carbonate and linear ester solvent. Also, the present invention provides a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate and linear ester solvent. The inventive electrolyte solvent can improve the battery safety without deteriorating the battery performance.

Abstract: The present invention provides an electrolyte for lithium secondary batteries that allows the batteries to operate safely at a charging voltage up to 4.35V, wherein the electrolyte comprises a combination of a fluoroethylene carbonate compound and a linear ester compound as solvent. Also, the present invention provides a lithium secondary battery that can operate at a charging voltage up to 4.35V, which comprises a positive electrode, a negative electrode and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate compound and linear ester compound as solvent.

Abstract: A fixing mechanism to fix a battery to a main body of an electronic device includes a channel defined in the main body, the channel comprising two opposite openings at two ends thereof, a first fixing member fixed to one end of the channel, an electrically conductive second fixing member fixed to the other end of the channel, an insulated protector slidably positioned in the channel between the battery and the first fixing member; an electrical conductive member partially received in the insulated protector, and a resilient member. One end of the resilient member is fixed to the first fixing member, and the other end of the resilient member resists the electrical conductive member with the insulated protector toward the battery so that the electrical conductive member is electrically connected to an electrode of the battery.

Abstract: A polymer battery is provided with a positive electrode active material layer, a negative electrode active material layer placed in opposition to the positive electrode active material layer, a polymer electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, and a distance defining member included in the polymer electrolyte layer to define a distance between the positive electrode active material layer and the negative electrode active material layer.

Abstract: A lithium secondary battery of the present invention comprises a positive electrode formed by disposing a positive-electrode mixture layer containing a positive-electrode active material and a positive-electrode binder, on a surface of a positive-electrode current collector; a negative electrode formed by sintering a negative-electrode mixture layer containing a negative-electrode binder and a negative-electrode active material containing silicon and/or a silicon alloy, disposed on a surface of a negative-electrode current collector; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte; wherein an electrode unit obtained by setting the positive electrode and the negative electrode opposed to each other through the separator and rolling them in spirally rolled state is placed in a cylindrical battery container and wherein a curvature radius of the negative-electrode mixture layer opposed to the positive-electrode mixture layer through the separator in the

Abstract: A battery cover latch assembly comprises a battery housing member, a battery cover releasably secured to the battery housing member, a latch system and an adjustment system. The latch system is formed between the battery cover and the battery housing member, to secure the battery cover to the battery housing member. The adjustment system is formed between the battery cover and the battery housing member, to adjust the securing engagement between the battery cover and the battery housing member.

Abstract: A power supply device includes a battery block 3 of battery cells 1. Cooling gaps 4 are provided for flowing cooling gas between cells 1 from a side surface of the block 3 into the gaps 4. The width of a temperature equalizing plate 15 covering the side surface of the block 3 varies designed so that the amounts of the gas flowing into the gaps 4 are reduced toward the upstream side. The upstream side of the plate 15 is fastened to the block 3. The plate 15 includes protrusions 37 that protrude from the downstream side of the plate 15. Insertion portions 39 are arranged at positions of coupling members 11 corresponding to the protrusions 37 on side surface of the block 3. When the protrusions 37 of the plate 15 are inserted into the insertion portions 39, the plate 15 is attached to the coupling members 11.

Abstract: A battery pack cooling system may utilize a shroud defining a throat and a body, which may contain a battery pack. An evaporator may be arranged against the battery pack. A liquid coolant delivery pipe may deliver liquid coolant from a reservoir to the throat section with the aid of gravity, a pump, or an ultrasonic misting device. A spray nozzle may also deliver liquid coolant into the throat. When in the throat, liquid coolant mixes with air blown by a fan. Gaps in the battery pack may align with gaps of the evaporator to permit liquid and air to be blown completely through the battery pack and through the evaporator. A refrigeration system including a refrigerant compressor, a condenser and an expansion device work to cool the evaporator to condense, cool and remove liquid coolant from the liquid and air mixture, and deposit it in the reservoir.

Abstract: An electrochemical device 1A has first and second electrode pads 5a and 5b on the upper surfaces 11 of protrusions 3a and 3b, and has first and second electrode pads 7a and 7b on the lower surfaces 13 of the protrusions 3a and 3b. First and second foil electrode terminals 261a and 261b of an electrochemical element 251 are electrically connected to the first and second electrode pads 5a and 5b, respectively. First and second foil electrode terminals 262a and 262b of an electrochemical element 252 are electrically connected to the first and second electrode pads 7a and 7b, respectively.

Abstract: A fuel cell system of the present invention includes a fuel cell (3); a water passage (8, 10, 12, 15, 17, 18); an electric heater (19) configured to heat the water passage; a water-related temperature detector (20); a first abnormality detector (22, etc.) configured to detect first abnormalities; a second abnormality detector (28, etc.) configured to detect second abnormalities; and a controller (21), and the controller is configured to stop an operation of the fuel cell system when the first abnormality is detected by the first abnormality detector or when the second abnormality is detected by the second abnormality detector. In a case where the fuel cell system stops since the second abnormality is detected by the second abnormality detector, the controller causes the electric heater (19) to carry out an operation as an antifreezing operation when the water-related temperature detector detects a temperature that is not more than a predetermined threshold.