Abstract: An electrolyte for a lithium-ion electrochemical cell comprises a non-aqueous solution of a lithium salt and a redox shuttle salt compound in a non-aqueous solvent, wherein the redox shuttle compound comprises an amino-substituted cyclopropenium salt of Formula (I) as described herein.

Abstract: An active material of an embodiment for a nonaqueous electrolyte battery includes a complex. The complex includes a covering material including an M-O—C mixed body; and particles including at least one element of M. The particles are included in the covering material. The M includes at least one element selected from the group consisting of; Si, Sn, Al, and Ti. The particles including the at least one element of M include the at least one element of M or an alloy including the at least one element of M. The M-O—C mixed body includes at least three elements of M, O, and C. The M-O—C mixed body includes a point at which the following conditional expressions: 0.6?M/O?5 (molar ratio) and 0.002?M/C?0.1 (molar ratio) are simultaneously satisfied. The M-O—C mixed body includes the at least three elements of M, O, and C in a region excluding the particles including the at least one element of M when elementary composition analysis of the complex is performed by TEM-EDX with a beam diameter of 1 nm.

Abstract: A bus bar module includes a plurality of first bus bars, a plurality of second bus bars, a resin-made case, a resin-made case, and a resin-made bridging member. The first bus bars electrically connect electrode terminals to each other in a first electrode row arranged in the same direction included in a battery assembly that is a plurality of batteries superimposed in the same direction, and electrically connect the electrode terminals of the two adjacent batteries to each other in the one electrode row. The second bus bars electrically connect electrode terminals of the two adjacent batteries to each other in a second electrode row in the battery assembly. The case holds the first bus bars. The case holds the second bus bars. The bridging member bridges these cases.

Abstract: Provided is an all solid-state lithium battery including solid battery materials and whose ohmic resistance is modulated according to temperature. The all solid-state lithium battery can include a solid electrolyte; at least two terminals for operating the battery at one level of internal resistance (R1) over a temperature range of the battery between a first temperature (T1) and a second temperature (T2); at least one high resistance terminal for operating the battery at a second level of internal resistance (R2) outside of either T1 or T2; and a switch that activates R2 when the temperature of the battery is outside of either T1 or T2. The battery can be configured to include at least one resistor sheet embedded within a cell of the battery and electrically connected to the at least one high resistance terminal.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 bar to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared.

Abstract: The invention relates to a starting method for a fuel cell system (100), particularly for an air/air start of the fuel cell system (100). The method enables the reduction of damaging half-cell voltages in the fuel cell stack (10) through voltage limitation by means of a DC voltage converter. The homogeneous flushing of the fuel cell stack (10) required for this takes place by means of introduction of an anode operating medium into an anode inlet channel (17) of the otherwise sealed fuel cell stack (10) until a predetermined pressure is reached and flushing of the active areas of the fuel cells (11) of the stack (10) after said pressure is reached through opening of an anode discharge adjusting aid (26), preferably arranged in an exhaust coupling (29) connecting the anode exhaust line (22) and the cathode exhaust line (31).

Abstract: The present invention relates to a separator for an electrochemical element having improved electrolyte wettability and an electrochemical element comprising the separator, in which a layer containing at least two binder polymers having different slopes on the frequency-storage modulus curve is formed on a surface of the separator, and with one of the binder polymers being concentratedly distributed on the surface of the separator, the separator and the electrode can be securely attached, and with the other binder polymer being permeated and coated onto a porous polymer substrate, electrolyte wettability can be enhanced.

Abstract: Disclosed is a device for notching, at an interval of a unit electrode, a continuous electrode sheet in which an electrode active material is applied to one or both surfaces thereof, to form a plurality of unit electrodes from the electrode sheet, the device including a press to press notches on the top and the bottom of the electrode sheet at a set position, and two or more grippers arranged at the rear of the press based on a feed direction of the electrode sheet, the grippers drawing and transporting the electrode sheet by one pitch, a size corresponding to the unit electrode according to operation of the press, wherein while one of the grippers draws and transports the electrode sheet, the remaining grippers move to a position for drawing.

Abstract: In an example of a method for enhancing the performance of a silicon-based negative electrode, the silicon-based negative electrode is pre-lithiated in an electrolyte including a lithium salt dissolved in a solvent mixture of dimethoxyethane (DME) and fluoroethylene carbonate (FEC). The DME and FEC are present in a volume to volume ratio ranging from 10 to 1 to 1 to 10. The pre-lithiation forms a stable solid electrolyte interface layer on an exposed surface of the negative electrode.

Abstract: Provided is a lithium air battery, particularly, a lithium air battery capable of being easily charged and discharged to thereby improve performance and reliability, having economic feasibility, preventing leakage of ions, and having firmly inter-coupled electrodes to thereby improve durability.

Abstract: A battery pack including a plurality of electrode assemblies, a lower case including a plurality of cell compartments accommodating the plurality of electrode assemblies, and an upper case on the lower case at a top opening of the lower case, wherein each of the upper case and the lower case is includes a metal layer interposed between an internal layer and an external layer, the internal layer and the external layer being made of a plastic material.

Abstract: A battery including a first electrode layer, a solid electrolyte layer on the first electrode layer, a second electrode layer which is located on the solid electrolyte layer and which is a counter electrode layer of the first electrode layer, and a space portion, wherein a first thickness portion is located on the first active material layer, the second thickness portion is located on the first electrode layer, the second active material layer is located at a position which faces the first thickness portion and which does not face the first active material layer via the second thickness portion, the second collector extends to the position facing the second thickness portion and a region provided with the second active material layer, the second thickness portion is in contact with the second electrode layer, and the space portion is surrounded by the second electrode layer and the second thickness portion.

Abstract: A heat exchanger for battery cooling is provided to improve an efficiency of cooling of the current heat exchangers. The heat exchanger for battery cooling comprises an upper housing with a fluid inlet and a fluid outlet, a lower housing capable of hermetically connecting with the upper housing to form a chamber for accommodating fluid. The fluid flows into the chamber through the fluid inlet and then exits through the fluid outlet. The fluid chamber is provided with at least one S-shaped fluid directing element with several through holes. With the S-shape directing elements within the fluid chamber and the through holes formed on the directing elements, fluid can flow in an injecting manner within the chamber to realize effective cooling of the upper housing.

Abstract: The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte. The compositions include glass based compositions that are included as part of various battery components, such as the battery separator, pasting paper, additives to battery paste, etc.

Abstract: A roll electrode is provided with a core, an electrode, a fixing part and a regulating part. The core extends in an axial direction and has an outer circumference that is substantially circular. The electrode has an expansion coefficient lower than that of the core. The electrode wound into a roll shape on the outer circumference of the core. The fixing part is provided for fixing an end portion from which the electrode starts being wound around the core. The regulating part is provided for regulating the axial movement of the electrode wound into the roll shape with respect to the core.

Abstract: A multilayered cathode for a lithium sulfur battery comprising at least one current collector working electrode having a surface comprising a carbon containing layer, two or more sulfur containing layers wherein at least one of the sulfur layers is located in juxtaposition to and in communication with the carbon containing layer, and at least one outermost layer comprising a positively charged polymer for forming interconnected layers of the sulfur containing layer, the carbon containing layer, and the polymer. Preferably, the cathode has layers that are alternatively arranged of two or more different sulfur containing layers. A lithium sulfur battery is provided and a method of making a multilayered cathode for a lithium sulfur battery is disclosed.

Abstract: There is provided a fuel cell system. When receiving an instruction to start power generation of the fuel cell system, the fuel cell system is configured: (i) to obtain an output limit value of a secondary battery according to a predetermined relationship of a temperature of the secondary battery to the output limit value of the secondary battery by using the temperature of the secondary battery; (ii) to control a battery converter such as to increase a voltage of a smoothing capacitor for boosting included in the battery converter to a start-time target voltage that is higher than an open circuit voltage of a fuel cell, such that an output power of the secondary battery does not exceed the output limit value; and (iii) to operate the compressor such as to start supplying the cathode gas by the cathode gas supply system and to open the main stop valve such as to start supplying the anode gas by the anode gas supply system.

Abstract: Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.

Abstract: A lithium battery packaging material is provided with a laminate formed by sequentially laminating an adhesive layer, an aluminum foil layer provided with a corrosion prevention treatment layer on at least one surface thereof, an adhesive resin layer and a sealant layer on one surface of a substrate layer. The adhesive resin layer contains an adhesive resin composition, and a polypropylene or propylene-?-olefin copolymer having an atactic structure.

Abstract: An active material for a nonaqueous electrolyte battery according to the embodiment is a composite including at least: a carbonaceous substance; and silicon-containing particles dispersed in the carbonaceous substance, the silicon-containing particles including at least one of silicon, a silicon alloy and a silicon oxide, wherein in an argon ion laser Raman spectrum, the half-width (?G) of a peak having a maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less is 100 cm?1 or more and 150 cm?1 or less, and the intensity ratio of a peak having a maximum intensity I2 in the range of 500 cm?1 or more and 550 cm?1 or less to the peak having the maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less (I2/I1) is 0.25 or more and 0.50 or less.