Abstract: A polymer electrolyte including: a lithium salt; an organic solvent; a fluorine compound; and a polymer of a monomer represented by Formula 1 below. H2C?C—(OR)n—OCH?CH2??Formula 1 In Formula 1, R is a C2-C10 alkylene group, and n is in a range of about 1 to about 1000.

Abstract: A nonaqueous electrolyte secondary battery of an embodiment includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The electrolyte contains an organic solvent with a lithium salt dissolved therein and an additive. An active material of the negative electrode contains at least one metal selected from Si and Sn, at least one or more selected from an oxide of the metal and an alloy containing the metal, and a carbonaceous matter. A fluorine concentration of a film A formed on the metal, the oxide of the metal, or the alloy containing the metal in the negative electrode active material is higher than a fluorine concentration of a film B formed on the carbonaceous matter, the additive includes at least one compound containing fluorine and at least one compound containing no fluorine, or an electrolyte after initial charge contains at least one fluorine-containing additive.

Abstract: Disclosed is a lithium secondary battery having improved lifespan characteristics. More particularly, a lithium secondary battery comprising a cathode, an anode, a separator interposed between the cathode and anode, and an electrolyte, wherein the anode comprises lithium titanium oxide (LTO) as an anode active material, the electrolyte comprises a lithium salt; a non-aqueous-based solvent; and (a) a phosphate compound which can prevent gas generation during high-temperature storage, (b) a sulfonate compound which can reduce discharge resistance by forming a low-resistance SEI layer, or a mixture of the compound (a) and the compound (b), is disclosed.

Abstract: An improved electrolyte including a strontium additive suitable for lithium-sulfur batteries, a battery including the electrolyte, and a battery including a separator containing a strontium additive are disclosed. The presence of the strontium additive reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance.

Abstract: A nonaqueous electrolyte battery includes: an electrode group including a positive electrode and a negative electrode; and a nonaqueous electrolyte including an electrolytic solution, the electrode group including an insulating layer, the insulating layer containing a ceramic, the electrolytic solution including an electrolyte salt and an additive, the electrolyte salt including the compound of formula (1), and the additive being at least one of the compounds of formulae (2) to (14), and the compound of formula (1) being contained in 0.001 mol/L to 2.5 mol/L with respect to the electrolytic solution.

Abstract: A composite cathode active material including a lithium metal oxide including an oxide Formula 1 and sulfur, xLi2MnO3.(1?x?y)LiMO2.yLiMn2O4??(1) wherein 0<x<0.6, 0<y<0.1, and M is at least one selected from a metal and a metalloid.

Abstract: An electrolyte contains a solvent and an electrolyte salt. The solvent contains an organic acid and a sulfone compound in combination. The organic acid has a moiety containing an electron-withdrawing group such as a carbonyl group (—C(?O)—) or a sulfonyl group (—S(?O)2—) in the center and hydroxyl groups (—OH) at both ends. The sulfone compound is a cyclic compound having a disulfonic anhydride group (—(O?)2S—O—S(?O)2—) or a carboxylic-sulfonic anhydride group (—(O?)2S—O—C(?O)—).

Abstract: An electrolyte for a lithium battery, a lithium battery including the electrolyte, and a method of preparing the electrolyte for a lithium battery. The electrolyte for a lithium battery includes a non-aqueous organic solvent; and about 0.1 wt % to about 1 wt % of lithium nitrate (LiNO3) based on a total weight of the non-aqueous organic solvent. By using the electrolyte for a lithium battery, lifespan cycle properties of the lithium battery may be improved.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.

Abstract: A non-aqueous secondary battery containing: a positive electrode containing a transition metal oxide as an active material thereof; a negative electrode; and a non-aqueous liquid electrolyte containing an electrolyte, an organic solvent, and less than 0.1 mol/L of an organometallic compound containing a transition element or a rare-earth element as a central metal thereof.

Abstract: The invention relates to lithium perfluoroalkylfluorosilicates, to their preparation, and to their use as conductive salts in electrochemical cells, more particularly in lithium batteries, lithium ion batteries or lithium ion capacitors, and also to electrolytes or electrochemical cells comprising these lithium perfluoroalkylfluorosilicates.

Abstract: Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.

Abstract: In one aspect, a rechargeable lithium battery including a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte is provided. The positive active material can include manganese-based oxide, and the electrolyte can include fluoroethylene carbonate, lithium bis(oxalato)borate, and tris(trialkylsilyl)borate.

Abstract: An electrolyte solution for a lithium ion battery, wherein the electrolyte solution includes water.

Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains an electrolytic solution material together with a nonaqueous solvent and an electrolyte salt. The electrolytic solution material includes one or more of first unsaturated compounds and second unsaturated compounds represented, and one or more of phenol-type compounds, phosphorus-containing compounds, and sulfur-containing compounds.

Abstract: A nonaqueous electrolytic solution that can provide a battery that is low in gas generation, has a large capacity, and is excellent in storage characteristics and cycle characteristics contains an electrolyte and a nonaqueous solvent dissolving the electrolyte and further contains 0.001 vol % or more and less than 1 vol % of a compound represented by Formula (1) in the nonaqueous solvent. Alternatively, the nonaqueous electrolytic solution contains 0.001 vol % or more and less than 5 vol % of a compound represented by Formula (1) in the nonaqueous solvent and further contains at least one compound selected from the group consisting of cyclic carbonate compounds having carbon-carbon unsaturated bonds, cyclic carbonate compounds having fluorine atoms, monofluorophosphates, and difluorophosphates. In Formula (1), R1 to R3 each independently represent an alkyl group of 1 to 12 carbon atoms, which may be substituted by a halogen atom; and n represents an integer of 0 to 6.

Abstract: Provided is a lithium ion secondary battery demonstrating improved manganese dissolution inhibition performance when the lithium ion secondary battery is charged and discharged. In the lithium ion secondary battery, a positive electrode (64) includes a positive electrode collector (62) and a positive electrode active material layer (66) including at least a positive electrode active material (70) and formed on the positive electrode collector. The positive electrode active material (70) is mainly constituted by a manganese-containing lithium complex oxide (72) including lithium and at least manganese as a transition metal element and includes a coating film (74) of an amorphous structure including at least iron (Fe) and fluorine (F) formed on at least part of a surface of the manganese-containing lithium complex oxide.

Abstract: A nonaqueous electrolyte for a secondary cell comprising a lithium salt, at least one hydrofluoroether having the following formula (2) and/or at least one hydrofluoroether having the following formula (3), and a non-fluorinated ether having the following formula (4): wherein R1, R2, X, R10 and R11 are as defined; and a secondary cell containing the nonaqueous electrolyte; and which nonaqueous electrolyte and secondary cell are free from erosion of electrodes or generation of carbon dioxide gas and which have a long-term nonflammability, an excellent low-temperature characteristic and a practically sufficient conductivity.

Abstract: Provided are a nonaqueous electrolyte battery having improved durability properties such as cycle and storage properties, and improved load characteristic, and a nonaqueous electrolyte solution that is appropriate for the nonaqueous electrolyte battery. The nonaqueous electrolyte solution contains a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution also contains a compound represented by formula (1) and a specific compound that acts in conjunction with the aforementioned compound.

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: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a lithium salt, a silylborate-based compound, an anhydride component, and a non-aqueous organic solvent.

Abstract: A secondary lithium battery electrolyte including a lithium salt, a nonaqueous organic solvent, and an electrolyte additive represented by Formula 1: where n is an integer in the range of 1 to 4. A secondary lithium battery having excellent cycle and high temperature retention characteristics can be provided by using such secondary lithium battery electrolyte.

Abstract: The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid ester represented by the formula R1-CH2—COO—R2 where R1 represents hydrogen or alkyl group and R2 represents alkyl group and the sum of the carbon numbers of R1 and R2 is 3 or less, and in the case that R1 is hydrogen, at least one part of hydrogen in R2 is replaced with fluorine, and, in the case that R1 is alkyl group, at least one part of hydrogen in R1 and/or R2 is replaced with fluorine; and a film forming chemical compound decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.

Abstract: A process for producing a separator-electrolyte layer for use in a lithium battery, comprising: (a) providing a porous separator; (b) providing a quasi-solid electrolyte containing a lithium salt dissolved in a first liquid solvent up to a first concentration no less than 3 M; and (c) coating or impregnating the separator with the electrolyte to obtain the separator-electrolyte layer with a final concentration ?the first concentration so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of that of the first liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point. A battery using such a separator-electrolyte is non-flammable and safe, has a long cycle life, high capacity, and high energy density.

Abstract: Lithium salt mixtures, for example a mixture including at least two lithium salts chosen from two of the three following groups of salts: X: LiPF6, LiBF4, CH3COOLi, CH3SO3Li, CF3SO3Li, CF3COOLi, Li2B12F12, LiBC4O8; R1—SO2—NLi—SO2—R2, where R1 and R2 independently represent F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C3F5OCF3, C2F4OCF3, C2H2F2OCF3 or CF2OCF3; or Formula (I), where Rf represents F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C3F5OCF3, C2F4OCF3, C2H2F2OCF3 or CF2OCF3. Also, said salt mixtures dissolved in solvents, suitable for being used as electrolytes for Li-ion batteries.

Abstract: A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material is a lithium molybdenum composite transition metal oxide material and is prepared by mixing in a solid state an intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain the lithium molybdenum composite transition metal oxide cathode material.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode having a positive-electrode active material, a negative electrode having a negative-electrode active material, and a nonaqueous electrolytic solution having a nonaqueous solvent dissolving a solute. The negative-electrode active material includes powdered silicon and/or a silicon alloy, the nonaqueous electrolytic solution includes additives composed of at least one fluorinated lithium phosphate selected from the group consisting of lithium monofluorophosphate, lithium difluorophosphate, and lithium trifluorophosphate and a diisocyanate compound, and the nonaqueous solvent includes a chain carbonate compound.

Abstract: Electrodes, energy storage devices using such electrodes, and associated methods are disclosed. In an example, an electrode for use in an energy storage device can comprise porous disks comprising a porous material, the porous disks having a plurality of channels and a surface, the plurality of channels opening to the surface; and a structural material encapsulating the porous disks; where the structural material provides structural stability to the electrode during use.

Abstract: Provided are a method for judging the amount of impurities in a solvent for an electrolyte liquid to be used in a non-aqueous electrolyte liquid battery, that enables judging, more easily than conventionally, the amount in which several types of impurities causing degradation of battery performance is contained in the solvent; a method for producing an electrolyte liquid using this judging method; and an electrolyte liquid. The judging method includes: obtaining a reaction solution by adding a Lewis acid to the solvent; measuring the Hazen value of the reaction solution; and judging whether the value is no more than a predetermined threshold. The producing method includes mixing, with an electrolytic salt, the solvent for which the Hazen value has been judged to be no more than the threshold by the judging method. The electrolyte liquid contains: the solvent with the Hazen value as judged above; and an electrolytic salt.

Abstract: A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent and an energy storage device are provided, wherein the nonaqueous electrolytic solution contains at least one kind of a compound represented by the following general formula (I): (wherein each of R1 to R10 independently represents hydrogen atom, halogen atom, or a C1 to C4 alkyl group in which at least one hydrogen atom may be substituted with halogen atom.

Abstract: Provided is a sodium secondary battery including a graphite felt having a maximum porosity on a surface facing a solid electrolyte and a decreased porosity in a thickness direction, as a cathode current collector impregnated with an electrolyte.

Abstract: An electrolytic solution capable of suppressing the battery swollenness and improving the battery characteristics such as the charge and discharge efficiency and a battery using it are provided. A cathode (21) and an anode (22) are layered with an electrolyte layer (24) in between. The electrolyte layer (24) is gelatinous, containing the electrolytic solution and a polymer compound. The electrolytic solution contains a compound having proton scavenging capacity such as hexamethylenetetramine and hexaethylenetetramine. Thereby, a free acid such as hydrofluoric acid is scavenged, and decomposition reaction of the electrolytic solution or the like is prevented.

Abstract: The present invention provides an organic electrolyte that improve the organic electrolyte storage battery of an electric vehicle in the initial storage capacity that affects the possible cruising range, which electrolyte comprises a compound having no rotational symmetry axis of the compounds represented by formula (1) below: wherein R1 to R5 are each independently hydrogen, an alkyl group, a halogenated alkyl group, or halogen, R6 is an alkylene group or a halogenated alkylene group and R7 is a phenyl group having no substituent or having a substituent (a straight-chain or branched alkyl group having one to four carbon atoms, halogen-containing straight-chain or branched alkyl group having one to four carbon atoms, or halogen) bonded thereto.

Abstract: A method for generating molecular bromine in bromide-containing electrolyte solution suitable for use in a metal bromine cell, involves chemically oxidizing bromide (Br?) in the electrolyte solution in an acidic environment, to produce the molecular bromine.

Abstract: An additive that is added to the NaAlX4 electrolyte for use in a ZEBRA battery (or other similar battery). This additive has a moiety with a partial positive charge (?+) that attracts the negative charge of the [AlX4]? moiety and weakens the ionic bond between the Na+ and [AlX4]? moieties, thereby freeing some Na+ ions to transport (move). By using a suitable NaAlX4 electrolyte additive, the battery may be operated at much lower temperatures than are typical of ZEBRA batteries (such as, for example, at temperatures between 150 and 200° C.). Additionally, the additive also lowers the viscosity of the electrolyte solution and improves sodium conductivity. Non-limiting examples of the additive SOCl2, SO2, dimethyl sulfoxide (DMSO, CH3SOCH3), CH3S(O)Cl, SO2Cl2. A further advantage of using this additive is that it allows the use of a NaSICON membrane in a ZEBRA-type battery at lower temperatures compared to a typical ZEBRA battery.

Abstract: An electrochemical device is provided having a carboranyl magnesium electrolyte. Specifically the disclosure relates to an electrochemical device having a carboranyl magnesium electrolyte which is compatible with a magnesium anode and a cathode, and on non-noble metal still having oxidative stability >3.0V vs. a magnesium reference.

Abstract: The present disclosure relates to a magnesium hybrid battery and a method for fabricating same. The magnesium hybrid battery according to the present disclosure, which includes magnesium or magnesium alloy metal as an anode, a cathode including a cathode active material wherein not only magnesium ion but also one or more ion selected from lithium ion and sodium ion can be intercalated and deintercalated and an electrolyte including magnesium ion and further including one or more ion selected from lithium ion and sodium, can overcome the limitation of the existing magnesium secondary battery and provide improved battery capacity, output characteristics, cycle life, safety, etc.

Abstract: An electrolyte for a rechargeable lithium battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2 is disclosed. A rechargeable lithium battery including the electrolyte is also disclosed. The structures and definitions of the Chemical Formulae 1 and 2 are the same as described in the detailed description.

Abstract: A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and/or a conductive supporting structure, an anode having an anode active material and/or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.

Abstract: A nonaqueous electrolyte containing a monofluorophosphate and/or a difluorophosphate and a compound having a specific chemical structure or specific properties. The nonaqueous electrolyte can contain at least one of a saturated chain hydrocarbon, a saturated cyclic hydrocarbon, an aromatic compound having a halogen atom and an ether having a fluorine atom.

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the electrolyte are provided. The electrolyte includes a compound represented by Formula 1 below; a nonaqueous organic solvent; and a lithium salt: wherein, in Formula 1, R1, R2, R3, and R4 are each independently a unsubstituted or substituted C1-C20 alkoxy group, a unsubstituted or substituted C1-C20 alkoxyalkyleneoxy group, a unsubstituted or substituted C6-C20 aryloxy group, or R—O—C(?O)— where R is a C1-C20 alkyl group, a C6-C20 aryl group, or a C1-C20 fluoroalkyl group.

Abstract: Electrolyte and lithium secondary batteries containing the same are disclosed. In one instance, the electrolyte includes a lithium salt, a solvent and an additive. In some examples, the additive includes substances A, B and C, wherein substance A is vinylene carbonate, substance B includes at least one of fluorinated or chlorinated ethylene carbonate or diethylene carbonate, and substance C includes at least one of ethylene sulfite, 1,3-propanesultone and propenyl sulfite.

Abstract: A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a coating derived from lithium bis(oxalate)borate. The coating derived from lithium bis(oxalate)borate includes a coating containing boron element and a coating containing oxalate ion. A ratio of the boron element contained in the coating derived from lithium bis(oxalate)borate to the oxalate ion is equal to or more than 5. Accordingly, it is possible to provide a non-aqueous electrolyte secondary battery capable of reliably obtaining the effect due to the formation of a coating.

Abstract: It is an object of this exemplary embodiment to provide a lithium ion secondary battery using a positive electrode active material having an operating potential of 4.5 V or more, the lithium ion secondary battery having excellent high temperature cycle characteristics. This exemplary embodiment is a lithium ion secondary battery comprising a positive electrode and a negative electrode capable of intercalating and deintercalating lithium, a separator between the positive electrode and the negative electrode, and an electrolytic solution containing a nonaqueous electrolytic solvent, wherein the positive electrode comprises a positive electrode active material operating at a potential of 4.5 V or more versus lithium, the separator comprises cellulose, a cellulose derivative, or a glass fiber, and the nonaqueous electrolytic solvent comprises a fluorinated solvent.

Abstract: An electrochemical cell includes a metal containing anode M? capturing and releasing cations, a metal containing cathode M? and an electrolyte including an anion X?and a cation M?+. During the charge process, the electrolyte allows reversible reactions wherein the anion dissociates from the electrolyte and reacts with the metal cathode forming M?Xy. At the same time, cations M?+ from the electrolyte deposit on the anode side. The reverse process happens during the discharge process.

Abstract: There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1): wherein X1 to X4 are the same or different and each is —H, —F, —CF3, —CHF2, —CH2F, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3; at least one of X1 to X4 is —F, —CF3, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3, and the non-aqueous electrolytic solution has further excellent noncombustibility and is suitable for lithium secondary batteries.

Abstract: In some embodiments, the present disclosure pertains to energy storage compositions that comprise a clay and an ionic liquid. In some embodiments, the clay is a bentonite clay and the ionic liquid is a room temperature ionic liquid (RTIL). In some embodiments, the clay and the ionic liquid are present in the energy storage compositions of the present disclosure in a weight ratio of 1:1. In some embodiments, the ionic liquid further comprises a lithium-containing salt that is dissolved in the ionic liquid. In some embodiments, the energy storage compositions of the present disclosure further comprise a thermoplastic polymer, such as polyurethane. In some embodiments, the thermoplastic polymer constitutes about 10% by weight of the energy storage composition. In some embodiments, the energy storage compositions of the present disclosure are associated with components of energy storage devices, such as electrodes and separators.

Abstract: A nonaqueous electrolyte battery is provided and includes a positive electrode, a negative electrode having a negative electrode active material layer containing a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and a non-fluid electrolyte. The non-fluid electrolyte contains an electrolyte salt, a nonaqueous solvent, an orthoester compound represented by the following formula (1), and at least one member selected from the group consisting of cyclic carbonate compounds represented by the following formula (2) to (5). A volume viscosity of the negative electrode active material layer is 1.50 g/cc or more and not more than 1.75 g/cc, and a specific surface area of the negative electrode active material is 0.8 m2/g or more and not more than 4.

Abstract: A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, R1 and R2 each represent a methyl group or an ethyl group; R3 and R4 each represent a hydrogen atom, a methyl group or an ethyl group.

Abstract: An electrolyte for lithium secondary batteries includes a lithium salt, a nonaqueous organic solvent, and a compound represented by Formula 1 below as an additive: where R1, R2, R3, R4, and R5 in Formula 1 are defined as those specified in the specification.