Abstract: In some embodiments, lithium-sulfur electrochemical cells, fabrication methods thereof, and methods useful to enable improvement of one or more performance characteristics in lithium-sulfur electrochemical cells are provided herein. In some embodiments, a method to enable improvement of one or more performance characteristics in a lithium-sulfur electrochemical cell(s) is disclosed, wherein a conductive network is formed within the lithium-sulfur electrochemical cell(s) by applying a voltage thereto for a threshold time period. The one or more performance characteristics of the lithium-sulfur electrochemical cell increase as a result of the presence of the conductive network.

Abstract: A supported bi-metallic non-platinum catalyst that is capable of oxidizing hydrazine to produce, as by-products of energy production, nitrogen, water, and zero or near-zero levels of ammonia is described. The catalyst is suitable for use in fuel cells, particularly those that utilizes an anion-exchange membrane and a liquid fuel such as hydrazine.

Abstract: The present invention relates to a method of preparing a negative electrode active material for a secondary battery which may prevent oxidation during the preparation of nano-sized silicon particles, a negative electrode active material for a secondary battery prepared thereby, and a negative electrode for a secondary battery and a lithium secondary battery including the same.

Abstract: An energy storage apparatus includes one or more energy storage devices, and an outer housing that houses the one or more energy storage devices. The outer housing includes an outer housing main body, a cover that closes an opening of the outer housing main body, an outer terminal disposed on the cover, and a communication part defining a passageway allowing a communication between an interior and an exterior of the outer housing. The communication part includes a functional membrane. A ventilation hose for passage of a gas, which has passed the functional membrane, is connected to an end of the communication part.

Abstract: A negative electrode active material includes a compound represented by a composition formula of MgxMe1-xO1-xH2x, where Me is at least one selected from the group consisting of Mn, Fe, Co, Ni, and Cu, and 0.5?x?0.9.

Abstract: A method and an apparatus are provided for controlling a cooling system of a fuel cell, wherein an output of the cooling system is determined by varying rising/falling gain values of a cooling system according to irreversible/reversible degradation degrees of the fuel cell and an output demand degree, whereby the cooling system is controlled according to the determined output.

Abstract: The present disclosure provides a battery pack component including a self-healing coating. The self-healing coating is disposed on at least a portion of a surface of the battery pack component. The self-healing coating includes a first precursor including a cyclic ether capable of reacting in a self-healing cationic ring-opening polymerization reaction. The self-healing coating further includes an initiator including an alkali metal salt. The self-healing cationic ring-opening polymerization reaction occurs when a defect is present in the self-healing coating. In certain aspects, the cyclic ether may include 1,3-dioxolane (C3H6O2) and the initiator may include lithium bis(fluorosulfonyl)imide (F2NaNO4S2). In other aspects, the self-healing coating may include a second precursor that is capable of copolymerizing with the first precursor. In still other aspects, the present disclosure provides a method of making a self-healing coating for a battery pack component.

Abstract: A vehicle electrical system for a motor vehicle. An electrical energy store and at least one component of the vehicle electrical system, this component being connected to the energy store by at least one connection providing at least one electrical line connection to the energy store. A temperature-control fluid can be transported to and/or from the component of the vehicle electrical system that is associated with it by the at least one connection.

Abstract: To spread the use of catalysts for fuel cells, there is a demand to develop a catalyst that uses less Pt and has a high power generation efficiency. An electrode catalyst includes a support particle containing a metal oxide and a precious-metal alloy supported on the support particle. The support particle includes multiple branches, a hole between the branches, and a pore. The pore is surrounded by the branches and the hole. The precious-metal alloy includes a precious metal element and at least one or more transition elements.

Abstract: New poly(ketone)-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

Abstract: An aspect of the present invention is an electrical device, where the device includes a current collector and a porous active layer electrically connected to the current collector to form an electrode. The porous active layer includes MgBx particles, where x?1, mixed with a conductive additive and a binder additive to form empty interstitial spaces between the MgBx particles, the conductive additive, and the binder additive. The MgBx particles include a plurality of boron sheets of boron atoms covalently bound together, with a plurality of magnesium atoms reversibly intercalated between the boron sheets and ionically bound to the boron atoms.

Abstract: Xanthan gum has been found to be a superior binder for binding an electrode, especially an anode, in a lithium-ion or lithium-sulfur battery, being able to accommodate large volume changes and providing stable capacities in batteries tested with different types of anode materials.

Abstract: A flat plate-shaped solid oxide fuel cell having a porous ceramic support, a fuel electrode provided on the porous ceramic support, an electrolyte layer provided on the fuel electrode, an air electrode provided on the electrolyte layer, and a fuel electrode current collector connected to the fuel electrode and extending in a direction way from the air electrode is provided.

Abstract: According to an embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator sandwiched between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Li-absorbing potential of 1 V vs. Li/Li+ or more. An electrical resistance of the negative electrode in a discharged state is within a range of 100 ?·cm to 100000 ?·cm. A pore volume ratio of pores having a pore diameter of 1 ?m or more in the separator is more than 70%. The pore volume ratio is determined from a cumulative pore volume frequency curve of the separator obtained by a mercury intrusion porosimetry.

Abstract: The invention relates to a system and a method for eliminating reverse current decay in the fuel cells. According to the invention, the system comprises a fuel cell having an anode and a cathode; a fuel feed system for supplying the anode of the fuel cell with fuel and forming an anode system; a bypass line fitted in parallel and in flow connection with said anode system and capable of circulating fuel past the anode; an oxygen reduction unit; and a pressure unit for circulating gas in at least part of said anode system and said bypass line. The bypass line is adapted to receive and circulate a flow of hydrogen during a fuel cell shutdown in order to mix the hydrogen with any oxygen present in the anode system, and to remove the oxygen from the anode system in said oxygen reduction unit by catalytic conversion.

Abstract: A production process for carbon-coated silicon material includes the step of: heating CaSi2 and a halogen-containing polymer at a temperature being a carbonization temperature or more of the halogen-containing polymer in a state where the CaSi2 and the halogen-containing polymer coexist.

Abstract: This nonaqueous lithium power storage element contains a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte that contains lithium ions. The positive electrode has a positive electrode current collector and a positive electrode active material layer disposed on one surface or both surfaces of the positive electrode current collector, and the positive electrode active material layer contains a positive electrode active material that contains a carbon material. When the pore distribution of the positive electrode active material layer is measured by mercury intrusion, the pore distribution curve for the relationship between the pore diameter and log differential pore volume has at least one peak having a peak value of 1.0-5.0 mL/g for the log differential pore volume in the pore diameter range of 0.1-50 ?m, and the total cumulative pore volume Vp in the pore diameter range of 0.1-50 ?m is 0.7-3.0 mL/g.

Abstract: Provided are a positive active material for a lithium secondary battery, a method of preparing the positive active material, and a lithium ion secondary battery including the positive active material, the positive active material including a lithium-containing compound represented by the formula of Li2?xM?O3?y (wherein M? is at least one element selected from Mg, Al, Ca, Ti, V, Cr, Fe, Cu, Zn, Ga, Sr, Y, Zr, Nb, Mo, Ru, and F; 0?x?1; and 0?y?3) on a surface or inside of a lithium metal oxide represented by the formula of Li1?xNiyM1?yO2?z (wherein M is at least one element selected from Co and Mn; 0?x?0.05; 0.6?y?1; and 0?z?0.05).

Abstract: The present invention provides a conductive paste for positive electrodes of lithium-ion batteries and a mixture paste for positive electrodes of lithium-ion batteries that are inhibited from increasing in viscosity and gelling, and that have an easy-to-apply viscosity. The conductive paste of the present invention contains a dispersion resin (A), polyvinylidene fluoride (B), conductive carbon (C), a solvent (D), and a dehydrating agent (E).

Abstract: An exemplary battery assembly includes, among other things, a composite structure of an enclosure. The composite structure provides at least a portion of a coolant channel that carries a coolant. An exemplary battery cooling method includes, among other things, exchanging thermal energy between a coolant and a battery component as the coolant is communicated through a coolant channel. The coolant channel is at least partially established by a composite structure of an enclosure.