Abstract: A battery that can inhibit temperature rising when generating heat due to a short circuit etc., while inhibiting degradation of the battery output performance, includes a plurality of unit batteries stacked together; and an endothermic layer arranged between the unit batteries adjacent in a stacking direction, the layer including an endothermic material, wherein each unit battery includes: a pair of current collectors; and at least one electrode body, wherein: the pair of current collectors are arranged to both ends of the unit battery in the stacking direction respectively, the electrode body includes a first pole active material layer, a second pole active material layer which is different from the first pole active material layer, and a solid electrolyte layer; the first and second pole active material layer are arranged between the pair of current collectors; and the current collectors have contact with the first or second pole active material layer.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.

Abstract: A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.

Abstract: An electrically active electrode material for use with a lithium ion cell, a lithium ion cell, and a method for forming the electrochemically active material electrode material are described. The electrode material is in the form of a sheet or mat formed of a valve metal material formed of filaments of a valve metal not larger than about 10 microns in cross section, and coated with an electrochemically active material such as silicon nanoparticles.

Abstract: An illustrative example cell stack assembly includes a plurality of fuel cells that each include a cathode electrode, an anode electrode and a matrix for holding a liquid acid electrolyte. The electrodes have lateral outside edges that are generally coplanar. A plurality of separator plates are respectively between the cathode electrode of one of the fuel cells and the anode electrode of an adjacent one of the fuel cells. The separator plates have lateral outside edges that are generally coplanar with the lateral outside edges of the electrodes. A plurality of barriers along at least one of the lateral outside edges of respective ones of the separator plates extend outwardly beyond the lateral outside edges of the electrodes and separator plates. The barriers inhibit acid migration between one of the electrodes on one side of the barrier and one of the electrodes on an opposite side of the barrier.

Abstract: A flexible, jelly-roll type battery cell with a hollow core is disclosed. The battery cell includes a pair of electrodes wound together around a hollow core, a plurality of electrode tabs, each coupled to a separate one of the electrodes, and a flexible outer wrapper enclosing the pair of electrodes.

Abstract: An electrochemical cell is provided. The cell includes: a plurality of electrode stacks, each electrode stack including an aluminum or aluminum alloy anode, and at least one cathode configured to be electrically coupled to the anode; one or more physical separators between each electrode stack adjacent to the cathode; a housing configured to hold the electrode stacks, an electrolyte, and the physical separators; a water injection port, in the housing, configured to introduce water into the housing. The aluminum or aluminum alloy of the anode is substantially free of titanium and boron.

Abstract: A secondary battery includes: an electrode assembly; an electrode lead attached to an electrode tab extending from the electrode assembly, the electrode lead having a through-hole formed therein; a case accommodating the electrode assembly and the electrode lead; and a cap plate coupled to the case to seal an opening of the case and including a protrusion part protruding to the inside of the case, the protrusion part being coupled to the electrode lead through the through-hole by riveting, and the cap plate has at least one rivet groove formed around a periphery of the protrusion part.

Abstract: A composition comprising a first particulate electroactive material, a particulate graphite material and a binder, wherein at least 50% of the total volume of each said particulate materials is made up of particles having a particle size D50 and wherein a ratio of electroactive material D50 particle size:graphite D50 particle size is up to 4.5:1.

Abstract: This application relates to a battery module, including a substrate, battery units, end plates, side plates and fastening pieces; the end plates are respectively located on two sides of the battery units in their stacking direction, adjacent to outermost ones of the battery units and extend along a length direction of the battery unit; an end of the end plate in the length direction is curled into a pipe and forms a curling pipe section, an axial direction of the curling pipe section is the same with a height direction of the battery unit; the fastening piece is inserted in the curling pipe section, extends in the curling pipe section toward the substrate and protrudes out of the curling pipe section, and are fixed on the substrate; by configuring curling pipe sections, fastening strength is improved, so as to realize reliable fixation of the battery module on the substrate.

Abstract: The present disclosure relates to a battery module that includes a housing having a first absorptive material configured to absorb a laser emission, a cover having a second absorptive material configured to absorb the laser emission, and a collar configured coupled to the housing and coupled to the cover via a laser weld. The collar includes a transparent material configured to transmit the laser emission through the collar and toward the housing or the cover.

Abstract: A phosphoranimine compound comprising a cationic portion bonded to a nitrogen atom of the phosphoranimine compound, a phosphorus atom bonded to the nitrogen atom, pendant groups bonded to the phosphorus atom, and a counterion. An electrolyte solution comprising at least one phosphoranimine compound is also disclosed, as is an energy storage device including the electrolyte solution.

Abstract: A rechargeable battery includes: an electrode assembly having a first electrode and a second electrode; an electrode terminal electrically coupled to the electrode assembly; a case that receives the electrode assembly; a cap plate at an opening of the case that closes and seals the case, the cap plate having a vent hole to discharge an internal pressure of the case and having a vent plate that closes and seals the vent hole; and a short circuit member having one end electrically coupled to the electrode assembly and another end that extends along a direction toward the vent hole at the inside of the case. At least a portion of the short circuit member is modified to be drawn outside of the vent hole when the internal pressure is discharged.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material, a negative electrode including a negative active material and an electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the positive active material includes a nickel-based composite oxide represented by the following Chemical Formula 1, the non-aqueous organic solvent includes ethylene carbonate, and the ethylene carbonate is included in an amount of 7.5 to 27.5 volume % based on the total amount of the non-aqueous organic solvent, LiNixCoyMnzO2??[Chemical Formula 1] wherein in Chemical Formula 1, 0.63?x?0.85, 0.05<y<0.25, 0.03<z<0.02 and x+y+z=1.

Abstract: An electrical energy storage device has electrodes positioned in a case. A feedthrough pin extends through a portion of the case. A sealant surrounds the feedthrough pin and contacts a component of the device. A seal activator is received in the sealant such that the pressure that the sealant applies to the component increases above the level of pressure that the sealant applies to the component before the sealant activator is received in the sealant. In some instances, the component is the feedthrough pin.

Abstract: A manufacturing method which includes: (1) an alkali cellulose reaction step wherein a mixed solvent having a mixing ratio (a mass ratio) of an alcohol having a carbon number of 3 or less and water of 75:25 to 95:5 is used, and the concentration of the base to the water is 25 to 40 mass %; (2) an etherification reaction step wherein a reaction is carried out under an excess base of 0.2 to 0.5 moles per unit of an anhydroglucose of the cellulose; (3) a neutralization step wherein acid is added to adjust the pH of the reaction mixture to 6.0 to 8.0; and (4) a heating step wherein the mixed solvent is removed, and a base is added to adjust the pH of the reaction mixture to 8.0 to 9.0, and then a heat treatment is performed at 40 to 70° C. for 30 to 120 minutes.

Abstract: A solid oxide fuel cell apparatus 1 has: multiple fuel cell units 16; a module case 8 housing multiple fuel cell units; a heat insulating material 7 disposed to cover the area around the module case 8; a reformer 20 for reforming raw fuel gas using steam, thereby producing fuel gas; a combustion chamber 18 for combusting residual fuel gas and heating the reformer 20; a heat exchanger 23 for exchanging heat between oxidant gas and exhaust gas; and a steam generator 25, disposed within the heat insulating material 7 and on the outside of the module case 8, for exchanging heat between exhaust gas and water immediately after heat is exchanged in the heat exchanger 23, thereby producing steam.

Abstract: A carbon-metal oxide composite material comprising: (i) carbon-carbon composite particles in which an amorphous carbon black core is bonded to crystalline graphitic carbon shells; and (ii) a metal oxide material bonded with said carbon-carbon composite particles, wherein said metal oxide material is included in an amount of at least about 10 wt. % by weight of said carbon-carbon composite particles and metal oxide material. Alkali-ion batteries containing the above-described composite as anode are also described. Methods for producing the above-described composite are also described. The method can include, for example, subjecting pulverized rubber tire waste to a sulfonation process and pyrolyzing the sulfonated rubber to produce the carbon-carbon composite particles, as described above, followed by admixing and compounding a metal oxide material with the carbon-carbon composite particles.

Abstract: Provided is a lithium ion secondary cell using lithium manganese-based oxide as a positive electrode active material, wherein SEI films suppressing deterioration during repeated charge/discharge are easily formed not only on the negative electrode surface, but also on the positive electrode surface, deterioration in capacity upon use, in particular, under high-temperature environments is suppressed, charge/discharge cycle characteristics are improved and lifespan is lengthened. The lithium ion secondary cell includes a positive electrode active material layer containing lithium manganese-based oxide as a positive electrode active material, a negative electrode active material layer containing a negative electrode active material, and an electrolytic solution used to immerse the positive electrode active material layer and the negative electrode active material layer, wherein the positive electrode active material layer contains carbon nanotubes and the electrolytic solution contains sulfonic acid ester.

Abstract: A unit cell pack having a first battery module including battery cartridges that are sequentially stacked, a plurality of batteries wherein two batteries are seated on an upper surface of each of the battery cartridges, electrode connection members respectively positioned on both sides of the battery cartridges, and a battery cover covering the battery cartridges, the plurality of batteries, and the electrode connection members; a second battery module being adjacent to the first battery module and including same constituent elements as the first battery module; a battery housing surrounding the first battery module and the second battery module, and including air inflow window covers and air outflow window covers facing each other; and a fan duct disposed on the air outflow window covers of the battery housing is provided. A lower surface of each of the battery cartridges defines air guide grooves with respect to each other.