Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1?Q2/Q1??(I) 0.5?C/A?0.

Abstract: To provide electrode catalyst which has the catalyst activity and durability at a practically durable level and contributes to lowering of the cost in comparison with the conventional Pt/C catalyst. The electrode catalyst has a support and catalyst particles supported on the support. The catalyst particle has the core part, the first shell part formed on the core part, and the second shell part formed on the first shell part. The core part contains W compound including at least W carbide, the first shell part contains simple Pd, and the second shell part contains simple Pt.

Abstract: In an aspect, a rechargeable lithium battery that includes a positive electrode including a composite positive active material; a negative electrode including a carbon-based negative active material; an electrolyte including an additive, and a lithium salt and an organic solvent, wherein a passivation film may be on a surface of the negative electrode of the rechargeable lithium battery.

Abstract: A positive electrode active material layer comprises a coating layer for coating at least part of surfaces of positive electrode active material particles. The coating layer comprises alternate layers of a cationic material layer containing a cationic material having a positive zeta potential and an anionic material layer containing an anionic material having a negative zeta potential under neutral conditions, and a material layer having a zeta potential of opposite sign to that of the positive electrode active material particles is bonded to the surfaces of the positive electrode active material particles. The coating layer is thin and uniform, and has a high strength for bonding to the positive electrode active material particles, so the coating layer suppresses direct contact of the positive electrode active material particles and an electrolytic solution even when a nonaqueous secondary battery is used at a high voltage.

Abstract: A battery management system using a sensor inside of the battery that sensor enables monitoring and detection of various events in the battery and transmission of a signal from the sensor through the battery casing to a control and data acquisition module by wireless transmission. The detection of threshold events in the battery enables remedial action to be taken to avoid catastrophic events.

Abstract: Pillared particles of silicon or silicon-comprising material and a method of fabricating the same are disclosed. These particles may be used to create both a composite anode structure with a polymer binder, a conductive additive and a metal foil current collector, and an electrode structure. The structure of the particles overcomes the problems of charge/discharge capacity loss.

Abstract: An electrode material, an electrode, and a lithium ion battery in which it is possible to improve not only the amount of gas generated in the battery during charge and discharge but also the deterioration of battery components without reducing the charge and discharge capacity are provided. The electrode material is an electrode material including carbonaceous electrode active material complex particles which include a carbonaceous material on surfaces of electrode active material particles, in which an oxygen content rate in the carbonaceous material is 5.0% by mass or less, and a coating ratio of the carbonaceous material on the surfaces of the carbonaceous electrode active material complex particles is 60% or more.

Abstract: An exemplary fuel cell system includes a cell stack assembly having a plurality of cathode components and a plurality of anode components. A first reactant blower has an outlet situated to provide a first reactant to the cathode components. A second reactant blower has an outlet situated to provide a second reactant to the anode components. The second reactant blower includes a fan portion that moves the second reactant through the outlet. The second reactant blower also includes a motor portion that drives the fan portion and a bearing portion associated with the fan portion and the motor portion. The motor portion has a motor coolant inlet coupled with the outlet of the first reactant blower to receive some of the first reactant for cooling the motor portion.

Abstract: A rechargeable battery includes a case; an electrode assembly accommodating the case; a cap plate sealing an opening of the case; terminals electrically coupled to the electrode assembly and penetrating the cap plate; terminal plates on the cap plate and coupled to a respective one of the terminals; and a connecting member including a sinuous body located between the cap plate and the terminal plate to electrically couple the cap plate and the terminal plate.

Abstract: A current interruption device includes: a first conducting plate 90 configured to be electrically connected to a terminal; and a second conducting plate 88 disposed to face the first conducting plate and configured to be electrically connected to the electrode assembly. A center portion of the first conducting plate 90 and a center portion of the second conducting plate 88 are joined by a first welding portion. The second conducting plate 88 is configured to be fractured so as to interrupt the current flowing between the terminal and the electrode assembly when the internal pressure of the casing exceeds the preset pressure. The first welding portion has a fuse function of interrupting the current flowing between the terminal and the electrode assembly by fusion of the first welding portion when the current flowing between the terminal and the electrode assembly exceeds a preset current.

Abstract: Various embodiments provide systems and methods for detecting defects in components of a fuel cell. Embodiment methods and systems for detecting a defect in an interconnect for a fuel cell system include thermally exciting the interconnect using optical radiation and/or inductive stimulation, detecting a thermal response of the interconnect, and based on the thermal response, determining the presence or absence of a defect in the interconnect, such as a lateral or through crack in the interconnect.

Abstract: The present invention provides a resin composition comprising the following resin (a) and filler particles. The use of this composition makes it possible to obtain a separator having excellent heat resistance.

Abstract: A lithium super-battery cell comprising: (a) A cathode comprising a cathode active material having a surface area to capture or store lithium thereon, wherein the cathode active material is not a functionalized material and does not bear a functional group; (b) An anode comprising an anode current collector; (c) A porous separator disposed between the two electrodes; (d) A lithium-containing electrolyte in physical contact with the two electrodes, wherein the cathode active material has a specific surface area of no less than 100 m2/g being in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; and (e) A lithium source implemented at one or both of the two electrodes prior to a first charge or a first discharge cycle of the cell. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.

Abstract: A secondary battery including: a can having an opening at one end; and an electrode assembly in the can, wherein the can includes: a bottom surface which is curved; and a deformation inducing portion at the bottom surface to reduce a force needed for deformation when bending the bottom surface.

Abstract: A process of preparing an E-carbon nanocomposite includes contacting a porous carbon substrate with an E-containing material to form a mixture; and sonicating the mixture to form the E-carbon nanocomposite; where E is S, Se, SexSy, or Te, x is greater than 0; and y is greater than 0.

Abstract: A piping unit includes a cathode gas supply passage arranged to supply a cathode gas, and a cathode gas discharge passage arranged to discharge a cathode off-gas. The cathode gas supply passage includes a cathode supply valve, upstream cathode gas piping and downstream cathode gas piping. The cathode gas discharge passage includes a cathode exhaust valve, upstream cathode off-gas piping and downstream cathode off-gas piping. The cathode gas supply passage and the cathode gas discharge passage are connected with each other by cathode bypass piping and are integrated with each other by joining the cathode supply valve with the upstream cathode off-gas piping.

Abstract: A thermal management system is integral to a battery pack and/or individual cells. It relies on passive liquid-vapor phase change heat removal to provide enhanced thermal protection via rapid expulsion of inert high pressure refrigerant during abnormal abuse events and can be integrated with a cooling system that operates during normal operation. When a thermal runaway event occurs and sensed by either active or passive sensors, the high pressure refrigerant is preferentially ejected through strategically placed passages within the pack to rapidly quench the battery.

Abstract: According to the method for manufacturing electrode sheets, in a first cutting step, an original sheet, including a belt-shaped metal foil and an electrode material coated thereon in a lengthwise direction to form a plurality of coated portions spaced at a predetermined gap, is cut at a location between the coated portions. In a pressing step, the original sheet strips having been cut in the first cutting step are pressed. In this case, the original sheet strips that are pressed by the rolling device are independent from each other. Therefore, the effect produced in rolling of the coated portions remains within each of the original sheet strips. In addition, distortions occurring in the original sheet strips can be prevented from affecting each other and the occurrence of wrinkles can be inhibited.

Abstract: The present disclosure discloses a heat sink with two or more separated channels. The heat sink according to the present disclosure includes a cooling channel through which a refrigerant passes to cool a secondary battery by an indirect cooling method, the secondary battery including a cell assembly in which at least two unit cells are stacked, each unit cell including a positive electrode plate, a separator, and a negative electrode plate, and a plurality of positive and negative electrode tabs protruding from the positive and negative electrode plates of each unit cell is electrically connected to positive and negative leads, respectively, wherein the cooling channel has two or more separated channels, the two or more separated channels have branches inside to allow a coolant to flow in each of the channels, and the branches are vertically arranged. According to the present disclosure, provision of a heat sink having a uniform cooling effect is enabled.

Abstract: The invention provides for a fully electrically rechargeable metal anode battery systems and methods of achieving such systems. An electrically rechargeable metal anode cell may comprise a metal electrode, an air contacting electrode, and an aqueous electrolyte separating the metal electrode and the air contacting electrode. In some embodiments, the metal electrode may directly contact the liquid electrolyte and no separator or porous membrane is needed between the air contacting electrode and the electrolyte. Rechargeable metal anode cells may be electrically connected to one another through a centrode connection where a metal electrode of one cell and an air contacting electrode of a second cell are electrically connected. Air tunnels or pathways may be provided between individual metal anode cells arranged in a stack. In some embodiments, an electrolyte flow management system may also be provided to maintain liquid electrolyte at constant levels during charge and discharge cycles.