Abstract: Provided are an electrolytic solution for a nonaqueous electrolyte secondary battery and a nonaqueous electrolyte secondary battery each of which not only has heat resistance enough to resist reflow soldering but also can maintain the discharge capacity of the battery even in a low-temperature environment. The nonaqueous electrolyte secondary battery is provided with an electrolytic solution 50 including a solute and a solvent containing a polyethylene glycol dialkyl ether and an ethylene glycol dialkyl ether, a positive electrode 12, a negative electrode 26, and a separator 30 formed of glass fibers and placed between the positive electrode 12 and the negative electrode 26.

Abstract: An objection is to provide a high performance secondary battery having good flame retardancy and cycle properties. The present exemplary embodiment provides a secondary battery comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode is formed by binding a negative electrode active substance comprising a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with a negative electrode binder, and the electrolyte liquid comprises a supporting salt and an electrolytic solvent, the electrolytic solvent comprising at least one phosphate ester compound selected from phosphite esters, phosphonate esters and bisphosphonate esters.

Abstract: An energy storage device including an active electrolyte, a first electrode and a second electrode is provided. The active electrolyte contains protons and ion pairs with a redox ability. The first electrode and the second electrode coexist in the active electrolyte and are separated from each other. The first electrode and the second electrode respectively include an active material producing a redox-reaction with the active electrolyte or an active material producing ion adsorption/desorption with the active electrolyte. The active electrolyte receives electrons from the first electrode and/or the second electrode so as to perform a redox-reaction for charge storage.

Abstract: Disclosed is a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte including an ionizable lithium salt and an organic solvent may further include (a) 1 to 10 parts by weight of a compound having a vinylene group or vinyl group per 100 parts by weight of the non-aqueous electrolyte, and (b) 10 to 300 parts by weight of a dinitrile compound having an ether bond per 100 parts by weight of the compound having the vinylene group or vinyl group. The lithium secondary battery comprising the non-aqueous electrolyte may effectively suppress the swelling and improve the charge/discharge cycle life.

Abstract: A lithium/oxygen battery includes a lithium anode, an air cathode, and a non-aqueous electrolyte soaked in a microporous separator membrane, wherein non-aqueous electrolyte comprises a lithium salt with a general molecular formula of LiBF3X (X?F, Cl, or Br, respectively) and a non-aqueous solvent mixture.

Abstract: Provided are an electrolyte solution for lithium secondary battery, which includes dipentaerythritol hexaacrylate and a (meth)acrylate compound having a C4 to C12 linear or branched alkyl group as electrolyte additives, and a lithium secondary battery including the electrolyte solution. The electrolyte solution can improve the safety of the battery, and the performance characteristics, particularly cycle life characteristics, of the battery.

Abstract: The present invention provides a nonaqueous electrolytic solution exhibiting excellent battery characteristics such as electrical capacity, cycle property and storage property and capable of maintaining the battery characteristics for a long time, and a lithium secondary battery using the nonaqueous electrolytic solution. A nonaqueous electrolytic solution for a lithium secondary battery, in which an electrolyte salt is dissolved in a nonaqueous solvent, containing 0.1 to 10% by weight of an ethylene carbonate derivative represented by the general formula (I) shown below, and 0.

Abstract: The present invention relates to a nonaqueous electrolytic solution which can improve the electrochemical characteristics in a broad temperature range and an electrochemical element produced by using the same. Provided are (1) a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, which comprises an organic tin compound represented by the specific formula in an amount of 0.001 to 5% by mass of the nonaqueous electrolytic solution and (2) an electrochemical element comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the above nonaqueous electrolytic solution is the nonaqueous electrolytic solution of (1) described above.

Abstract: A magnesium battery electrode assembly is described, including a current collector comprising a metal, an overlayer material on the metal and an electrode layer comprising an electrode active material disposed on the current collector. The overlayer material passivates the metal, or inhibits a corrosion reaction that would occur between the metal and an electrolyte in the absence of the overlayer material.

Abstract: A non-aqueous electrolyte solution containing a lithium salt, a non-aqueous solvent, and a compound expressed by the following formula (IIc): wherein Z6 represents an integer of 2 or larger, X6 represents a Z6-valent hydrocarbon group having 2-6 carbon atoms, R61 represents, independently of each other, an alkyl group having 1-6 carbon atoms, R62 represents, independently of each other, an alkyl group having 1-6 carbon atoms substituted by one or more halogen atoms and any two or more of R61 and/or R62 may be linked with each other to form a ring.

Abstract: The invention relates to a method for removing diluent from a polymer extrudate, especially in connection with a process for producing a microporous membrane. The method involves contacting the extrudate with a second solvent in a first stage; contacting the extrudate from the first stage with a third solvent in a second stage; conducting a first stream away from the first stage and/or conducting a second stream away from the second stage; and cooling at least a portion of the first and/or second stream and separating therefrom at least one of a first phase rich in the second solvent or a second phase rich in the third solvent.

Abstract: Disclosed is an electrolyte for a rechargeable lithium battery that includes a lithium salt, a phosphine compound having at least one trialkylsilyl group and organic solvent, and a rechargeable lithium battery including the electrolyte. The phosphine compound may be tris(trialkylsilyl)phosphine wherein the alkyl groups are the same or different and are each independently selected from C1 to C6 alkyl.

Abstract: A lithium secondary battery is intended to suppress deterioration upon storage at high temperature of 50° C. or higher without deteriorating the output characteristics at a room temperature. The battery includes a positive electrode capable of occluding and releasing lithium ions, a negative electrode capable of occluding and releasing lithium ions, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The electrolyte contains a compound having a double bond in the molecule and a compound having a plurality of polymerizable functional groups in the molecule, and the electrolyte contains a compound represented by formula (4): (in which Z1 and Z2 each represent any one of an allyl group, a methallyl group, a vinyl group, an acryl group, and a methacryl group).

Abstract: A lithium ion battery includes a first electrode made of a cathodic material; a second electrode made of an anodic material; an electrolyte solution; and an additive added to the electrolyte solution, wherein the additive comprises a conjugated system and a bi-functional hydrogen bonding moiety. The additive includes a ?OH group and an N atom. The additive includes a compound having a structure shown as follows: wherein R2, R3, R4, R5, R6, and R7 are each independently selected from H, halogen, —OH, —NH2, —NO2, —CN, —CHO, —Si(CH3)3,—NH-alkyl, —O-alkyl, or an alkyl, wherein the alkyl group is C1-C12 alkyl; preferably, C1-C6 alkyl; more preferably C1-C3 alkyl; and wherein the alkyl group may be optionally substituted with one or more substituents selected from —OH, —NH2, —NO2, —CN, —CHO.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3) and have an average particle diameter of 0.1 to 10 ?m. The coating material comprises at least particles having an average particle diameter of 60 nm or less or layers having an average thickness of 60 nm or less. The particles or the layers contain at least one element selected from the group consisting of Mg, Ti, Zr, Ba, B and C.

Abstract: A composition including a first material and a metal or a metal oxide component for use in an electrochemical redox reaction is described. The first material is represented by a general formula M1xM2yXO4, wherein M1 represents an alkali metal element; M2 represents an transition metal element; X represents phosphorus; O represents oxygen; x is from 0.6 to 1.4; and y is from 0.6 to 1.4. Further, the metal or the metal oxide component includes at least two materials selected from the group consisting of transition metal elements, semimetal elements, group IIA elements, group IIIA elements, group IVA elements, alloys thereof and oxides of the above metal elements and alloys, wherein the two materials include different metal elements. Moreover, the first material and the metal or the metal oxide component are co-crystallized or physically combined, and the metal or the metal oxide component takes less than about 30% of the composition.

Abstract: A cathode material suitable for use in non-aqueous electrochemical cells that includes copper manganese vanadium oxide and, optionally, fluorinated carbon. A non-aqueous electrochemical cell comprising such a cathode material, and a non-aqueous electrochemical cell that additionally includes a lithium anode.

Abstract: A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode and an anode oppositely arranged with a separator in between, and an electrolytic solution. At least one of the cathode, the anode, the separator, and the electrolytic solution contains a sulfone compound having a carbonate group and a sulfonyl group.

Abstract: The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative).

Abstract: A nonaqueous electrolytic solution includes an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolyte solution contains at least one compound selected from the group consisting of a chain compound having a hydroxyl group and a carbon-carbon double bond, a light metal alkoxide thereof and a derivative thereof obtained by substituting the hydroxyl group with a protective group.

Abstract: An organic electrolyte solvent includes a compound of the formula: R1—SO2—NR2—OR3 wherein R1 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives and perfluorinated analogues; R2 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives; R3 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives wherein the electrolyte solvent is stable at voltages of greater than 4.0 volts.

Abstract: An organic electrolytic solution including: a lithium salt; an organic solvent; and a compound represented by Formula 1 below, and a lithium battery including the organic electrolytic solution. In Formula 1: R1, R2, and R3 may be each independently a hydrogen atom, a C1 to C10 alkyl group, a C6 to C10 cycloalkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, or a C2 to C10 alkynyl group; X is C (R2) or nitrogen; and n is an integer ranging from 1 to 5.

Abstract: The present invention provides an electrolyte solvent for batteries, which comprises fluoroethylene carbonate and linear ester solvent. Also, the present invention provides a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate and linear ester solvent. The inventive electrolyte solvent can improve the battery safety without deteriorating the battery performance.

Abstract: The present invention provides a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound, as well as an electrochemical device comprising the cathode. Also, the present invention provides an electrochemical device comprising: (1) a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound; (2) an anode having a passivation layer formed by a compound selected from the group consisting of vinylene carbonate, its derivative and an ether compound; and (3) an electrolyte solution containing a lithium salt and a solvent.

Abstract: The present invention relates in general to the field of lithium rechargeable batteries, and more particularly relates to the positive electrode design of lithium-ion batteries with improved high-rate pulse overcharge protection. Thus the present invention provides electrochemical devices containing a cathode comprising at least one primary positive material and at least one secondary positive material; an anode; and a non-aqueous electrolyte comprising a redox shuttle additive; wherein the redox potential of the redox shuttle additive is greater than the redox potential of the primary positive material; the redox potential of the redox shuttle additive is lower than the redox potential of the secondary positive material; and the redox shuttle additive is stable at least up to the redox potential of the secondary positive material.

Abstract: A non-aqueous electrolyte secondary battery wherein the non-aqueous electrolyte contains a non-aqueous solvent, a solute dissolved in the non-aqueous solvent, and hydrogenated terphenyl, the solute includes a boron-containing alkali salt and a boron-free alkali salt, the negative electrode includes a negative electrode active material comprising a randomly oriented carbon composite (A), and the carbon composite (A) contains a graphitic carbon substance (B) and a carbon substance (C) that is different from the graphitic carbon substance (B).

Abstract: The present invention provides an electrolyte for lithium secondary batteries that allows the batteries to operate safely at a charging voltage up to 4.35V, wherein the electrolyte comprises a combination of a fluoroethylene carbonate compound and a linear ester compound as solvent. Also, the present invention provides a lithium secondary battery that can operate at a charging voltage up to 4.35V, which comprises a positive electrode, a negative electrode and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate compound and linear ester compound as solvent.

Abstract: An electrolyte for the lithium secondary battery having flame retardancy, low negative electrode interfacial resistance, and excellent high temperature properties and life characteristics, and a lithium secondary battery including the same. An electrolyte for lithium secondary battery of the present invention may include a non-aqueous organic solvent, a lithium salt, fluorinated ether or phosphazene, and a resistance-improving additive represented as the following chemical formula (1): RSO2—R1—SO2F??[Chemical Formula 1] wherein R1 is a C1-C12 hydrocarbon unsubstituted or substituted with at least one fluorine.

Abstract: Disclosed are a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte solution for a lithium secondary battery may include difluorotoluene having a lowest oxidation potential among components of the non-aqueous electrolyte solution. The lithium secondary battery may have improvement in basic performance including high rate charge/discharge characteristics, cycle life characteristics, and the like, and may remarkably reduce swelling caused by decomposition of an electrolyte solution under high voltage conditions such as overcharge.

Abstract: An electrolyte for a rechargeable lithium battery, including a lithium salt, an organic solvent, lithium bis(oxalato)borate (LiBOB), and at least one kind of tris(trialkylsilyl)borate represented by following Chemical Formula 1. In the above Chemical Formula 1, R1 to R9 are the same as described in the detailed description.

Abstract: A quaternary ammonium salt of the formula (1), a composition containing the quaternary ammonium salt and an organic solvent, and an electrochemical device using the salt wherein R1 and R2 are both methyl and X? is BF4? or N(CF3SO2)2?.

Abstract: Disclosed are a nonaqueous electrolyte for a lithium secondary battery containing a hetero polycyclic compound and a lithium secondary battery using the same.

Abstract: A nonaqueous solvent for an electrical storage device disclosed in the present application includes fluorine-containing cyclic saturated hydrocarbon having a structure represented by the following general formula (1) in which one or two substituents R are introduced into a cyclopentane ring; and a compound having a relative dielectric constant of 25 or higher (in general formula (1), R is represented by CnX2n+1 where n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are H).

Abstract: A non-aqueous electrolyte usable in rechargeable lithium-ion batteries including a solution of LiPF6/carbonate based electrolytes with low concentrations of LiFOP such that the thermal stability is increased compared to a standard lithium battery. A method of making lithium tetrafluorophospahte (LiF4C2O4, LiFOP) including, reacting PF5 with lithium oxalate, recrystallizing DMC/dichloromethane from a 1:1 mixture of to separate LiF4OP from LiPF6 to form a lithium salt. An electric current producing rechargeable Li-ion cell. The rechargeable lithium ion cell includes an anode, a cathode, and a non-aqueous electrolyte comprising a solution of a lithium salt in a non-aqueous organic solvent containing lithium tetrafluorooxalatophosphate (LiPF4(C2O4), LiF4OP).

Abstract: Disclosed is a lithium secondary battery including: a positive electrode, a negative electrode including an alloy-type material, and a non-aqueous electrolyte with lithium ion conductivity. The non-aqueous electrolyte includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a carbonic acid ester, and a sulfinyl compound represented by the general formula (1): R1—SO—R2, where R1 and R2 are independently an alkyl group having one to three carbon atoms. The amount of the sulfinyl compound contained in the non-aqueous solvent is 0.1 to 10 wt %.

Abstract: Electrolyte, comprising an aprotic solvent, a lithium salt as conducting salt, and an additive, characterized in that the additive is a compound which contains a protonable nitrogen atom and is hydrolysable by water.

Abstract: The present invention provides an electrolyte solvent for batteries, which comprises fluoroethylene carbonate and linear ester solvent. Also, the present invention provides a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the electrolyte comprises fluoroethylene carbonate and linear ester solvent. The inventive electrolyte solvent can improve the battery safety without deteriorating the battery performance.

Abstract: The method for producing an active material according to the invention comprises a step of contacting an aqueous solution containing a zirconium fluoro-complex and a silicon fluoro-complex with a first metal oxide particle to form a second metal oxide particle group containing a zirconium oxide particle and a silicon oxide particle on the surface of the first metal oxide particle. The active material comprises a first metal oxide particle and a second metal oxide particle group formed on the surface of the first metal oxide particle, and the second metal oxide particle group contains a zirconium oxide particle and a silicon oxide particle.

Abstract: A battery life extender for a lead-acid storage battery is provided and comprises a mixtures of polyvinyl alcohol, polylysine, and potassium or sodium sorbate (or sorbic acid), and optionally a preservative, such as sodium benzoate. The extender is added to a lead-acid storage battery. Distilled or deionized water can be included to adjust the specific gravity of the electrolyte. The extender substantially increases the operable life of lead-acid storage batteries.

Abstract: Metal complex salts may be used in lithium ion batteries. Such metal complex salts not only perform as an electrolyte salt in a lithium ion batteries with high solubility and conductivity, but also can act as redox shuttles that provide overcharge protection of individual cells in a battery pack and/or as electrolyte additives to provide other mechanisms to provide overcharge protection to lithium ion batteries. The metal complex salts have at least one aromatic ring. The aromatic moiety may be reversibly oxidized/reduced at a potential slightly higher than the working potential of the positive electrode in the lithium ion battery. The metal complex salts may also be known as overcharge protection salts.

Abstract: A non-aqueous electrolyte secondary battery has a positive electrode (1), a negative electrode (2), a separator (3) interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution in which a solute is dissolved in a non-aqueous solvent. The negative electrode contains a negative electrode active material capable of alloying with lithium and the non-aqueous solvent of the non-aqueous electrolyte solution contains one ore more fluorinated cyclic carbonates and a carboxylic ester. In addition, the non-aqueous electrolyte solution contains a nitrile compound having a chain saturated hydrocarbon group having two or more carbon atoms.

Abstract: An electrolyte for a lithium secondary battery including a lithium salt, a nonaqueous organic solvent, and an additive, in which the additive is composed of one or more compounds including a purinone or a purinone derivative. The lithium secondary battery with improved life and high-temperature storage may be provided by using the electrolyte for a lithium secondary battery according to an embodiment of the present invention.

Abstract: Nitrogen silylated compounds are useful as additives in a nonaqueous electrolytic solution. The electrolytic solution including such additives is suitable for use in electrochemical cells such as lithium and lithium ion batteries. Batteries using this electrolytic solution have long cycle life and high capacity retention.

Abstract: A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt preferably lithium iodide (LiI) dissolved in an organic solvent mixture. The solvent mixture preferably comprises dioxolane, dimethoxyethane and sulfolane. The electrolyte typically contains between about 100 and 2000 parts by weight water per million parts by weight (ppm) electrolyte therein. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.

Abstract: A lithium rechargeable battery, an electrolyte for a lithium rechargeable battery, and a method of manufacturing a lithium rechargeable battery, the battery including an electrode assembly; a case accommodating the electrode assembly; and an electrolyte in the case, wherein the electrolyte includes a lithium salt; a non-aqueous organic solvent, the non-aqueous organic solvent including about 50 wt % or more of an ester-based solvent; lithium difluoro(oxalato)borate; and a first additive, the first additive including at least one selected from tris(trialkylsilyl)phosphate, tris(trialkylsilyl)phosphite, and tris(trialkylsilyl)borate.

Abstract: A non-aqueous electrolyte for a battery comprises a non-aqueous solvent containing a specified cyclic phosphazene compound and a specified difluorophosphate compound, a specified aniline derivative and a support salt.

Abstract: This invention relates to a nonaqueous electrolytic solution including a lithium salt and an organic solvent containing: a carbonate and/or an ester in a total proportion exceeding 90% by volume; and a fluorine-substituted aromatic ester represented by formula (I) in an amount of 0.01%-10% by weight based on the weight of the electrolytic solution: Xn-Ph-OCOR??(1). The invention also relates to a nonaqueous electrolytic solution including an electrolyte, a nonaqueous solvent, and a compound represented by formula (3): The invention also relates to a nonaqueous-electrolyte battery including a nonaqueous electrolytic solution as described above.

Abstract: Disclosed is an electrolyte for a lithium secondary battery. The electrolyte includes a non-aqueous solvent and a sulfone based organic compound represented by the following Formulae (I), (II), or (III), or a mixture thereof: where R and R? are independently selected from the group consisting of primary alkyl groups, secondary alkyl groups, tertiary alkyl groups, alkenyl groups, aryl groups; halogen substituted primary alkyl groups, halogen substituted secondary alkyl groups, halogen substituted tertiary alkyl groups, halogen substituted alkenyl groups, and halogen substituted aryl groups, and n is from 0 to 3.

Abstract: An engineered thermoplastic sealing member for LiFeS2 and other nonaqueous cells is disclosed. The optimal material displays a propensity to absorb at least 10 weight percent of an ether-based electrolyte while, at the same time, displaying a vapor transmission rate of less than 500((g×mil)/(100 in2×days).

Abstract: The present invention relates to ionic liquids having low melting points, low viscosities and high electrical conductivities; and more specifically, to ionic liquids including at least one organic onium ion and at least one anion represented by the formula: [Z—BF3]?, wherein Z is an alkyl group, an alkenyl group, or a fluoroalkenyl group. The ionic liquids according to the invention are capable of easily dissolving electrolytes such as lithium salts, and are also nonflammable and have low viscosities; therefore, the ionic liquids are suitable for use as electrolyte solvents for lithium batteries such as lithium secondary batteries, electric double-layer capacitors, and the like. The ionic liquids according to the invention are suitable for use in electrochemical devices such as lithium secondary batteries, fuel cells, solar batteries, electrical double-layer capacitors and the like; as solvents for chemical reactions; and as lubricants.