Abstract: The present invention relates to an organic electrolyte including at least one cyclic nitrile-based compound; and at least one chain type nitrile-based compound, and a secondary battery including the same.

Abstract: A battery for an implantable medical device (IMD) configured to support a relatively high rate of energy discharge relative to its capacity to support energy intensive therapy delivery, such as high energy anti-tachyarrhythmia shocks, by the IMD. The battery includes a first electrode, a second electrode separated a distance from the first electrode, an electrolyte disposed between the first electrode and the second electrode. The electrolyte includes a lithium salt including LiAsF6, an organic solvent, and an electrolyte additive that includes vinylene carbonate.

Abstract: A device may include a metallic substrate and a plurality of nanorod arrays arranged on the substrate. The nanorod arrays may be made of porous metallic nanostructures and may appear black in color.

Abstract: An energy storage apparatus includes an energy storage device including a case, a spacer including a spacer main body portion arranged on a first side in a first direction of the energy storage device, and a side member including a side main body portion arranged on a first side in a second direction intersecting the first direction of the energy storage device.

Abstract: In an aspect, provided is an alkaline rechargeable battery comprising: i) a battery container sealed against the release of gas up to at least a threshold gas pressure, ii) a volume of an aqueous alkaline electrolyte at least partially filling the container to an electrolyte level; iii) a positive electrode containing positive active material and at least partially submerged in the electrolyte; iv) an iron negative electrode at least partially submerged in the electrolyte, the iron negative electrode comprising iron active material; v) a separator at least partially submerged in the electrolyte provided between the positive electrode and the negative electrode; vi) an auxiliary oxygen gas recombination electrode electrically connected to the iron negative electrode by a first electronic component, ionically connected to the electrolyte by a first ionic pathway, and exposed to a gas headspace above the electrolyte level by a first gas pathway.

Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly which is wound and includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a casing which accommodates the electrode assembly; a first electrode tab which is connected to a non-coated portion of the first electrode; a second electrode tab which is connected to a non-coated portion of the second electrode; and a first insulating tape which is positioned at a winding start portion of the electrode assembly and attached to the non-coated portion of the first electrode so as to at least cover a center of a first curved portion which is curvedly formed as the electrode assembly is wound.

Abstract: A resist underlayer composition and a method of forming patterns using the same is disclosed. The resist underlayer composition includes a polymer including a structure represented by Chemical Formula 1 at the terminal end and a structural unit represented by Chemical Formula 2 and a structural unit represented by Chemical Formula 3 in the main chain; and a solvent. Definitions of Chemical Formula 1 to Chemical Formula 3 are the same as described in the detailed description.

Abstract: The present invention relates to fire-extinguishing equipment integrated with a secondary battery system for early detection and early extinguishing for reducing the risk of fire spreading inside battery modules, and, more specifically, the present invention comprises: a plurality of battery modules constituting a secondary battery system; module unit fire detection devices mounted inside the modules so as to sense a fire in advance; and integrated fire extinguishing equipment partially coupled to the battery modules so as to directly spray a fire extinguishing agent at the inside of each module, wherein the battery modules include additional members for a cooling effect and the instantaneously supply of a fire-extinguishing agent when a fire is detected.

Abstract: Embodiments described herein relate generally to systems and methods for continuously and/or semi-continuously manufacturing electrochemical cells with semi-solid electrodes. In some embodiments, a method can include mixing an active material, a conductive material, and an electrolyte to form a semi-solid electrode material. The method further includes drawing a vacuum on the semi-solid electrode material, compressing the semi-solid electrode material to form an electrode brick, and dispensing a portion of the electrode brick onto a current collector via a dispensation device to form an electrode. In some embodiments, the current collector is disposed on a pouch material. In some embodiments, the dispensation device includes a top blade for top edge control and two side plates for side edge control. In some embodiments, the method can further include conveying the electrode through the top blade and the two side plates to shape the electrode.

Abstract: The present invention is concerned with an improved fuel cell stack assembly comprising a metal base plate on which is mounted at least one fuel cell stack and a metal end plate, each stack comprising at least one fuel cell stack layer that comprises at least one fuel cell and at least one electrically insulating compression gasket, wherein a skirt is attached to the base and end plates enclosing the stack and is under tension therebetween so as to maintain a compressive force through the stack, thereby obviating the need for tie-bars.

Abstract: A non-woven fiber mat for lead-acid batteries is provided. The non-woven fiber pasting mat includes glass fibers coated with a sizing composition; a binder composition; and one or more additives. The additives reduce water loss in lead-acid batteries.

Abstract: Discussed is a separator for a lithium secondary battery and a lithium secondary battery including the same, more specifically, a separator for a lithium secondary battery including a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a defect-containing molybdenum disulfide. The separator for lithium secondary battery adsorbs lithium polysulfide through the coating layer comprising the defect-containing molybdenum disulfide and suppresses the growth of a lithium dendrite, thereby improving the capacity and lifetime characteristics of the lithium secondary battery.

Abstract: The present invention relates to an electrolyte, an additive thereof, a secondary cell, and an application thereof. An organic electrolyte according to a first aspect of the invention comprises a salt, a phosphate ester and a fluoroether, and does not comprise a carbonate ester. The salt is a lithium salt or a sodium salt. The electrolyte according to a second aspect of the invention comprises a base electrolyte and an additive. The base electrolyte comprises a sodium salt and a flame retardant solvent. The flame retardant solvent comprises a phosphate ester and a fluoroether. The additive comprises a fluorine-containing additive. The electrolyte and the secondary cell of the present invention increase safety.

Abstract: Water-in-salt electrolytes for zinc metal batteries are disclosed. The electrolyte includes a zinc halide. The electrolyte may be a hybrid water-in-salt electrolyte further including an additional metal halide or nonmetal halide. Batteries including the electrolytes are disclosed, as well as devices including the batteries and methods of making the batteries.

Abstract: The present invention provides an energy storage device having high discharge capacity and high cycling ability. More particularly, the present invention provides Zn/V2O5 battery having cation selective ionomer membrane and free-standing electrode.

Abstract: A secondary battery includes: an anode including an anode active material on an anode active material support; a cathode including a cathode active material on a cathode active material support; a separator between the anode and the cathode; an anode guide extending in a first direction from a first region along an edge of the anode active material support; and a cathode guide extending in a second direction from a second region along an edge of the cathode active material support.

Abstract: The invention relates to a silicon-based anode material for a lithium-ion battery, a preparation method therefor, and a battery. The silicon-based negative electrode material is prepared by the compounding of 90 wt %-99.9 wt % of a silicon-based material and 0.1 wt %-10 wt % of carbon nanotubes and/or carbon nanofibers which grow on the surface of the silicon-based material in situ.

Abstract: An insulator for a secondary battery and a secondary battery including the insulator are disclosed. According to one aspect, an insulator for a secondary battery includes: a body part configured to define a body; and a buffer part adhering to a top surface of the body part, wherein the buffer part includes a plurality of protrusions that protrude upward, and the body part is made of a material different from that of the buffer part.

Abstract: A lithium ion secondary battery that includes: a positive electrode having a positive electrode active material capable of storing and releasing lithium ions, the positive electrode active material containing positive electrode active material grains having a coating layer containing a carbon compound having an acid functional group, and an amount of the acid functional group in a composite including the positive electrode active material and the coating layer is 0.004 mmol/g to 0.0062 mmol/g; a negative electrode having a negative electrode active material capable of storing and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte containing a polar solvent having a relative permittivity of 20 or more.

Abstract: A hybrid redox fuel cell system includes a hybrid redox fuel cell and an electrochemical cell. The hybrid redox fuel cell includes an anode side through which hydrogen is flowed and a cathode side through which liquid electrolyte is flowed, the liquid electrolyte including a metal ion at a higher oxidation state and the metal ion at a lower oxidation state. An anode side of the electrochemical cell is fluidly connected to the cathode side of the hybrid redox fuel cell. At the hybrid redox fuel cell, power is generated by reducing the metal ion at the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side. At the anode side of the electrochemical cell, the metal ion at the lower oxidation state is oxidized to the higher oxidation state while the power is generated.