Abstract: An attachment for a fuel tank of a fuel cell powered system is described. The attachment thermally conducts heat generated from an electronic component to the fuel tank. The attachment further affixes to the electronic component by a securing portion. In one aspect, the attachment is comprised in a fuel cell powered electronic device. In another aspect, the attachment is integral to the fuel tank.

Abstract: A fuel cell may include a porous plate having an embedded flow field formed therein, a catalyst supported on and within the porous plate, and a proton exchange membrane in contact with the porous plate and catalyst. Such fuel cells may be arranged to form a fuel cell stack configured to provide power to move a vehicle.

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The container houses the electrode assembly and the nonaqueous electrolyte. The container has a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is electrically connected to the positive electrode. The negative electrode terminal is electrically connected to the negative electrode. The container further includes a short-circuiting mechanism that short-circuits the positive electrode terminal and the negative electrode terminal if the internal pressure rises. The nonaqueous electrolyte contains lithium bis(oxalato)borate (LiBOB).

Abstract: A hydrogen evolution device that liberates hydrogen upon passage of an electric current, wherein an amount of liberated hydrogen is proportional to an amount of the current, includes at least one hydrogen evolution cell including an electrochemically oxidizable anode, a hydrogen cathode and an electrolyte, and at least one heating resistor thermally coupled to the hydrogen cathode directly or via a solid or liquid heat conductor.

Abstract: For a metal anode in a battery, the capacity fade is a significant consideration. In energy storage devices having an anode that includes Mg, the cycling stability can be improved by an electrolyte having a first salt, a second salt, and an organic solvent. Examples of the organic solvent include diglyme, triglyme, tetraglyme, or a combination thereof. The first salt can have a magnesium cation and be substantially soluble in the organic solvent. The second salt can enhance the solubility of the first salt and can have a magnesium cation or a lithium cation. The first salt, the second salt, or both have a BH4 anion.

Abstract: Disclosed herein is a safety device mounted at one side of a battery pack including two or more battery cells or at least one battery module such that the safety device is first short-circuited when a needle type object penetrates the battery pack to secure safety of the battery pack, the safety device including a pair of conductive sheets spaced apart from each other, an electrically insulative housing to surround outsides of the conductive sheets excluding fronts of the conductive sheets in a state in which the conductive sheets are inserted and mounted in the housing, a sealing member to cover the fronts of the conductive sheets, and a connection member to connect the conductive sheets to a cathode and an anode of one of battery cells constituting the battery module.

Abstract: Provided is a secondary battery including an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode non-coating portion that is not coated with an active material in a portion of a positive electrode collector. The negative electrode includes a negative electrode non-coating portion that is not coated with an active material in a portion of a negative electrode collector. The non-coating portions are disposed in at least one of upper and lower portions of the electrode assembly in a longitudinal direction of the electrodes. A positive electrode tab and a negative electrode tab are connected to the non-coating portions. The separator is a complex porous separator including a substrate coated with a binder polymer or an organic/inorganic mixture formed of a binder polymer and inorganic particles.

Abstract: A lithium ion secondary battery is provided with a positive electrode, a negative electrode containing an active material, and an electrolytic solution, wherein the active material includes a core portion capable of occluding and releasing lithium ions, an amorphous or low-crystalline coating portion disposed on at least a part of the surface of the core portion, and a fibrous carbon portion disposed on at least a part of the surface of the coating portion, and the coating portion contains Si and O as constituent elements, while the atomic ratio y (O/Si) of O relative to Si satisfies 0.5?y?1.8.

Abstract: Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries.

Abstract: A negative electrode of a lithium secondary battery has a negative electrode active material including at least one element of silicon and tin. Capacities of the positive electrode and the negative electrode of the lithium secondary battery are set as follows. In a completely charged state of the lithium secondary battery charged by a predetermined charging method, the positive electrode active material and the negative electrode active material are in a first partially charged state, respectively. In a completely discharged state of the lithium secondary battery discharged by a predetermined discharging method, the negative electrode active material is in a second partially charged state.

Abstract: Each of electric cells constituting a battery assembly is provided with external terminals. The upper end of the electric cell is covered with an upper cap surrounding the external terminals whereas the lower end of the electric cell is covered with a lower cap. The electric cell is held between an upper holder and a lower holder via the upper cap and the lower cap. The upper cap includes a protector including ribs projecting along both sides of an inspecting terminal projecting through a terminal opening. The upper ends of the ribs are located above the inspecting terminal. Consequently, a metallic tool or the like cannot be brought into contact with the inspecting terminal, thereby preventing short-circuiting. Thus, it is possible to secure an excellent assembling performance while enhancing the safety of assembling work.

Abstract: A battery pack includes a secondary battery, a discharge-control transistor, a charge-control transistor connected in series with the discharge-control transistor between a negative power source terminal of the secondary battery and a terminal of a load or a negative power source terminal of a charger, and a battery protection semiconductor device including a detection circuit that detects at least one of excessively charged, excessive discharging, overcurrent, short-circuit, and overheating states of the secondary battery, a control circuit that turns on and off the discharge-control transistor and the charge-control transistor, and a charge prevention circuit that prevents the secondary battery from being charged by turning off the charge-control transistor when a voltage of the secondary battery is not greater than a predetermined low-voltage criterial voltage variable by trimming a portion of the charge prevention circuit. The charge prevention circuit includes first and second inverter circuits.

Abstract: Provided herein are methods for processing electrochemically active materials and resulting active material structures for use in rechargeable batteries. The resulting active materials structures include carbon containing coatings that partially or completely cover the surface of the active material structures. In a typical embodiment, the method includes providing a solution of carbon containing precursor in a solvent, dispersing electrochemically active material in the solution to form a mixture, removing the solvent from the mixture to form electrochemically active material coated with the carbon containing precursor, and heating the electrochemically active material coated with the carbon containing precursor in an inert atmosphere at a temperature sufficient to at least partially convert the carbon containing precursor into a carbon coating.

Abstract: To provide a safety device of a battery temperature control system for an EV or an HEV capable of preventing an electric shock due to the electrical conduction across terminals of batteries in the event of a vehicle collision. A safety device used in a temperature control system of a battery for a vehicle, including a first heat exchange unit (1) which includes a first heat exchange section (2) filled with a liquid-state heat medium into a pipe (3) and exchanging heat with a battery (B) by the heat medium, and a second heat exchange unit (20) which includes a second heat exchange section (21) heating or cooling the heat medium subjected to heat exchange in the first heat exchange section (2), wherein the heat medium existing in the first heat exchange section is discharged to the outside of the first heat exchange section, for example, under a predetermined condition such as a vehicle collision.

Abstract: A battery pack dehumidifier system for controlling the relative humidity within a battery pack enclosure is provided, the dehumidifier system including a desiccant that absorbs/adsorbs water vapor from the battery pack enclosure. The system heats and reactivates the desiccant at predetermined time intervals or when the humidity within the system reaches a preset level, thereby allowing the desiccant to regain its potential for absorbing/adsorbing water vapor.

Abstract: An electrochemical device is claimed and disclosed, including a method of manufacturing the same, comprising an environmentally sensitive material, such as, for example, a lithium anode; and a plurality of alternating thin metallic and ceramic, blocking sub-layers. The multiple metallic and ceramic, blocking sub-layers encapsulate the environmentally sensitive material. The device may include a stress modulating layer, such as for example, a Lipon layer between the environmentally sensitive material and the encapsulation layer.

Abstract: A fuel cell (10) includes an anode (11), a solid electrolyte layer (12), a barrier layer (13), and a cathode (14). The anode (11) includes a transition metal and an oxygen ion conductive material. In the interface region (R) within 3 micrometers from the interface with the solid electrolyte layer (12) of the anode (11) after reduction, the content rate of silicon is less than or equal to 200 ppm, the content rate of phosphorous is less than or equal to 50 ppm, the content rate of chrome is less than or equal to 100 ppm, the content rate of boron is less than or equal to 100 ppm, and the content rate of sulfur is less than or equal to 100 ppm.

Abstract: Systems and methods provide for the thermal management of a high temperature fuel cell. According to embodiments described herein, a non-reactant coolant is routed into a fuel cell from a compressor or a ram air source. The non-reactant coolant absorbs waste heat from the electrochemical reaction within the fuel cell. The heated coolant is discharged from the fuel cell and is vented to the surrounding environment or directed through a turbine. The energy recouped from the heated coolant by the turbine may be used to drive the compressor or a generator to create additional electricity and increase the efficiency of the fuel cell system. A portion of the heated coolant may be recycled into the non-reactant coolant entering the fuel cell to prevent thermal shock of the fuel cell.

Abstract: Disclosed is a high voltage battery pack apparatus for a vehicle which includes a cooling device having first and second battery packs which are installed in a center console of the vehicle. The first and second battery packs may be uniformly cooled through a distribution duct to improve cooling performance which minimizes the number of cooling fans that are used. Since the number of cooling fans is minimized and a discharging duct is not used, weight reduction and cost savings can be achieved.

Abstract: An embodiment of the invention relates to providing an electrical component that provides an electrical functionality, the component comprising: a fiber felt comprising a tangle of fibers and characterized by a fill factor; and at least two layers of material formed on the fibers that contribute to providing the electrical functionality.