Abstract: An electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive including a compound represented by the following Chemical Formula 1, and a rechargeable lithium battery including the electrolyte for a rechargeable lithium battery. In Chemical Formula 1, Ar1 and Ar2 are the same or different and are independently aromatic organic groups, and X is a halogen.

Abstract: A compound has general Formula I, II, III, or IV: where X and Y are independently a group of Formula (A): and Z a group of Formula (B): The compounds may be used in electrolytes and electrochemical devices.

Abstract: This invention relates to a negative active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery including the same. This negative active material exhibits high capacity and superior cycle-life characteristics and is thus usefully employed in a lithium secondary battery which shows high capacity during high-rate charge•discharge.

Abstract: An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes.

Abstract: Organic electrolytic solutions are provided. One solution includes a lithium salt, an organic solvent including a first solvent having high permittivity and a second solvent having a low boiling point, and a phosphate compound. By using the phosphate based compound, the organic electrolytic solution and the lithium battery including the organic electrolytic solution are flame resistant and have excellent charge/discharge properties. As a result, the lithium battery is highly stable and reliable and has good charge/discharge efficiency.

Abstract: Disclosed herein is a hybrid battery using an electrochemically stable electrolyte composition and electrodes suitable for use in the electrolyte composition. The hybrid battery is non-toxic and highly stable, and has improved high-current charge/discharge characteristics. The hybrid battery comprises an electrode unit consisting of an anode and a cathode, a separator for electrically separating the anode and the cathode, and an electrolyte filled in a space between the anode and the cathode so as to form an electric double layer on surfaces of the anode and cathode when a voltage is applied wherein the electrolyte contains a mixture of a lithium salt, an ammonium salt and a pyrrolidinium salt as solutes in a carbonate-based solvent so that the solute mixture has a concentration of 1.0-2.5 mol/L.

Abstract: Disclosed are lithium/carbon monofluoride batteries suitable for long term use at highly elevated temperatures. Organosilicon electrolytes having low vapor pressure and high flash points are used, along with lithium salts and ceramic separators. Methods of using these batteries at high temperatures are also disclosed.

Abstract: A non-aqueous electrolyte secondary battery has a high initial capacity and excels in cycle characteristics and storage characteristics even when charged until the potential of the positive electrode active material exceeds as high as 4.3V versus lithium. The non-aqueous electrolyte of the secondary battery contains both 1,3-dioxane and a sulfonic acid ester compound.

Abstract: A lithium polymer battery includes a polymer electrolyte or a gel polymer electrolyte having a nonaqueous organic solvent, a lithium salt, an ion-conducting polymer and a fluorinated benzene; a positive electrode; and a negative electrode.

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: An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.

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 electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte obtained by admixture of a magnesium salt of a non-nucleophilic base comprising nitrogen and aluminum trichloride in an ether solvent is provided. As sulfur is stable to a voltage of at least 3.2 V relative to a magnesium reference, a magnesium-sulfur electrochemical device is specifically provided.

Abstract: The present invention provides a battery that experiences a small degree of temporal change from the initial battery properties over the long term storage period of the battery. Specifically, the present invention provides a lithium secondary battery, in which a positive electrode capable of storing and releasing lithium and a negative electrode capable of storing and releasing lithium are formed via an electrolyte, wherein: the electrolyte comprises a cyclic solvent and a chain-type solvent and contains a compound having a boron-oxygen bond (B—O) and a carbon-carbon double bond (C?C).

Abstract: An electrolyte solution for a rechargeable lithium battery, including a lithium salt, a non-aqueous organic solvent, and an additive including fluoroethylene carbonate, a vinyl-containing carbonate, a substituted or unsubstituted C2 to C10 cyclic sulfate, and a nitrile-based compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, R may be a substituted or unsubstituted C1 to C20 alkylene group.

Abstract: The present invention provides a lithium ion battery which is protected from deterioration in performance due to oxidation decomposition of the nonaqueous electrolyte solution and excels in cycle life. The lithium ion battery has a cathode including a cathode active material exhibiting a potential of 4.5 V or more with reference to lithium metal; an anode; and a nonaqueous electrolyte solution containing a nonaqueous solvent and at least one lithium salt dissolved in the nonaqueous solvent. The nonaqueous solvent mainly contains a cyclic carbonate and a chain carbonate. The nonaqueous electrolyte solution contains boron ethoxide.

Abstract: To provide a technique for simply and easily producing a high-purity difluorophosphate and provide a production process of an electrolytic solution using the obtained difluorophosphate, an electrolytic solution and a secondary battery. A process for producing a difluorophosphate, comprising the following step (1) or (2): (1) reacting (A) at least one member selected from the group consisting of oxoacids, oxoacid anhydrides and oxyhalides of phosphorus with (B) a hexafluorophosphate in the presence of hydrogen fluoride, or (2) reacting at least one halide selected from the group consisting of alkali metal halides, alkaline earth metal halides, aluminum halides and onium halides with difluorophosphoric acid in the presence of a hexafluorophosphate. Also, a nonaqueous electrolytic solution containing the obtained difluorophosphate, and a nonaqueous electrolytic secondary battery containing the nonaqueous electrolytic solution.

Abstract: Photoelectric conversion elements and electrolyte solutions suitable for various applications and related components, and methods associated therewith, are described. Photoelectric conversion elements may include an electrolyte solution including an ionic liquid and an organic solvent. The ionic liquid may have an electron pair accepting functional group and the organic solvent may have an electron pair donating functional group. In some cases, including specified amounts of certain ionic liquids and organic solvents together may result in an electrolyte solution providing for advantageous photoelectric conversion efficiency while exhibiting low volatility.

Abstract: A polymer electrolyte secondary cell that is superior in the cycle characteristic and security during cell overcharge is provided. The polymer electrolyte of the cell includes a non-aqueous solvent, a lithium salt, and a polymer. The non-aqueous solvent contains at least one of ethylene carbonate and propylene carbonate. The volume ratio (25° C., 1 atm) of the ethylene carbonate and the propylene carbonate combined to the non-aqueous solvent is equal to or more than 60%. The polymer is made of a copolymer having a monomer containing N,N-dimethyl acrylamide and a compound with three or more acrylate groups and/or methacrylate groups. The ratio of the compound to the total mass of the monomer is from 10 to 30 mass %. The ratio of the polymer to the polymer electrolyte is from 1.0 to 2.0 mass %.

Abstract: A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation.

Abstract: The present invention has for its object to provide an electrolyte solution which can dramatically suppress the time degradation in performance of an electrochemical device, especially an electrochemical capacitor. The present invention relates to an electrolyte solution for electrochemical device which comprises an imidazolium salt (A) represented by the general formula (1) as a main component, wherein the content of the imidazolium salt (B) represented by the general formula (2) is not more than 15% by weight to the total weight of the imidazolium salt (A) and imidazolium salt (B); (in the formula, R1, R2 and R3 may be the same or different and each represents an alkyl group containing 1 to 3 carbon atoms; R4 and R5 may be the same or different and each represents an hydrogen atom or an alkyl group containing 1 to 3 carbon atoms; and X? represents a counter anion) (in the formula, R1, R3, R4, R5 and X? are the same as the definition for the general formula (1)).

Abstract: A method for preparing treated electrolytic manganese dioxide and a battery including the treated electrolytic manganese dioxide as an electrode are provided. The method for treating the electrolytic manganese dioxide includes suspending milled electrolytic manganese dioxide in an aqueous solution heated to a temperature between ambient and boiling, and adjusting an acidity of the aqueous solution to a pH of less than 3.3. The method further includes agitating the suspended milled electrolytic manganese dioxide in the aqueous solution for a predetermined amount of time to dissolve metal-containing particulates in the milled electrolytic manganese dioxide.

Abstract: An electrolyte includes a lithium salt, a non-aqueous organic solvent, gamma-butyrolactone and halogenated toluene represented by the following formula 1: wherein X represents at least one element selected from the group consisting of F, Cl, Br and I, and n represents an integer of 1 to 5. The lithium ion secondary battery including the electrolyte provides improved safety under overcharge and high-temperature storage conditions.

Abstract: An organic electrolyte solution for use in a redox flow battery and the redox flow battery including the organic electrolyte solution has a high energy density because re-precipitation is prevented in the organic electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.

Abstract: The storage characteristics in a charged state are improved in a non-aqueous electrolyte secondary battery containing a lithium cobalt oxide as a positive electrode active material. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material other than metallic lithium; and a non-aqueous electrolyte. The positive electrode active material contains a lithium cobalt oxide as its main component. The non-aqueous electrolyte contains 0.1 to 10 volume % of a compound having an ether group. The positive electrode active material and the negative electrode active material are contained so that the charge capacity ratio of the negative electrode to the positive electrode is from 1.0 to 1.2 when the battery is charged until the potential of the positive electrode reaches 4.4 to 4.5 V (vs.

Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.

Abstract: An object of the present invention is to provide a lithium ion battery in which the deterioration during the high temperature storage is suppressed. The lithium ion battery is a lithium ion battery 100 having a cathode 3 capable of occluding and releasing lithium ions, an anode 6 capable of occluding and releasing lithium ions, a separator 7 disposed between the cathode 3 and the anode 6 and an organic electrolyte solution, wherein the organic electrolyte solution contains a plurality of solvents, an additive and an electrolyte, the electrolyte contains lithium hexafluorophosphate (LiPF6), and the additive contains vinylene carbonate or a derivative thereof and a compound represented by the following formula (I): wherein R1, R2 and R3 are each independently a fluorine atom or a fluorinated alkyl group having 1 to 3 carbon atoms.

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 lithium accumulator including at least two three-dimensional electrodes separated by a separator and encased together with an electrolyte, comprising a non-aqueous solution of a lithium salt in an organic polar solvent, into an accumulator body wherein the two electrodes have a minimum thickness of 0.5 mm each, of which at least one electrode comprises a homogenous, compressed mixture of an electron conductive component and an active material, capable to absorb and extract lithium in the presence of electrolyte, wherein the porosity of the pressed electrodes is 25 to 90%, the active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size, while the separator consists of a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.

Abstract: A membrane humidifier assembly includes a first flow field plate adapted to facilitate flow of a first gas thereto and a second flow field plate adapted to facilitate flow of a second gas thereto. A polymeric membrane is disposed between the first and second flow fields and adapted to permit transfer of water from the first flow field plate to the second flow field plate. The polymeric membrane includes a polymer having perfluorocyclobutyl groups and a pendant side chain having a protogenic group.

Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal(chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

Abstract: A non-aqueous electrolyte secondary battery having a positive electrode and a negative electrode with an active material capable of absorbing and desorbing lithium, a separator interposed between the positive and negative electrodes, and a non-aqueous electrolyte. The negative electrode active material is covered by a coating having elasticity. The fully elastic coating expands and contracts following the volume change of the negative electrode active material; thus, the coating brings out its desired functions without being damaged or broken. Regardless of the degree of the volume change of the negative electrode active material, a lasting coating without damage is formed on the negative electrode active material, to improve performances of the non-aqueous electrolyte secondary battery.

Abstract: A lithium battery includes a cathode; an anode; and an organic electrolyte solution. The cathode includes cathode active materials that discharge oxygen during charging and discharging. The organic electrolyte solution includes: lithium salt; an organic solvent, and at least one selected from the group consisting of compounds represented by Formula 1 and Formula 2 below: P(R1)a(OR2)b??Formula 1 O?P(R1)a(OR2)b.??Formula 2 R1 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. R2 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. a and b are each independently in a range of about 0 to about 3 and a+b=3.

Abstract: An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a compound represented by the following Formula (1), and b) a compound selected from the group consisting of a sulfone-based compound, a poly(ester)(metha)acrylate, a polymer of poly(ester)(metha)acrylate, and a mixture thereof: wherein R1 is a C1 to C10 alkyl, a C1 to C10 alkoxy, or a C6 to C10 aryl, and preferably a methyl, ethyl, or methoxy, X is a halogen, and m and n are integers ranging from 1 to 5, where m+n is less than or equal to 6.

Abstract: An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which has a [B2]X4n? spinel-type framework structure of an A[B2]X4 spinel wherein A and B are metal cations selected from Li, Ti, V, Mn, Fe and Co, X is oxygen or sulphur, and n? refers to the overall charge of the structural unit [B2]X4 of the framework structure. The transition metal cation in the fully discharged state has a mean oxidation state greater than +3 for Ti, +3 for V, +3.5 for Mn, +2 for Fe and +2 for Co. The cell includes as a cathode, a lithium metal oxide or sulphide compound. An electrically insulative lithium containing liquid or polymeric electronically conductive electrolyte is provided between the anode and the cathode.

Abstract: The present invention includes small molecule organic additives for lead acid batteries, a lead acid battery and components thereof containing the small molecule organic additives of the invention, and methods for the use of such compounds. The batteries of the invention may optionally further contain carbon foam. The presence of carbon in the battery may generate some of the organic agents of the invention.

Abstract: A fluoride ion battery includes a substantially lithium-free anode and cathode. At least one of the anode or cathode contains fluorine, and a substantially lithium-free liquid electrolyte is used for charge transport. The electrolyte is liquid at temperatures below about 200 degrees Celsius, and can be formed from an organic-soluble fluoride salt dissolved in selected classes of solvents.

Abstract: The present invention provides a non-aqueous electrolytic solution including an organosilicon compound having a metal atom, a phosphorus atom or a boron atom, and a fluorine-containing alkali metal salt, wherein the content of a fluorinated organosilicon compound generated by reaction of the organosilicon compound and the fluorine-containing alkali metal salt in the non-aqueous electrolytic solution is 0.2% by mass or less.

Abstract: This invention relates to a safe electrolyte having no risk of igniting-firing, and more particularly to a non-aqueous electrolyte for a battery comprising an ionic liquid composed of a cation portion and an anion portion, and a supporting salt, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen, as well as an electrolyte for an electric double layer capacitor comprising an ionic liquid composed of a cation portion and an anion portion, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen.

Abstract: The present invention provides a solid electrolyte with high ion-conductivity which is cheap and exhibits high conductivity in an alkaline form, and stably keeps high conductivity because of a small amount of the leak of a compound bearing conductivity even in a wet state. The invention is useful in an electrochemical system using the solid electrolyte, such as a fuel cell. The solid electrolyte with high ion-conductivity comprises a hybrid compound which contains at least polyvinyl alcohol and a zirconic acid compound, and also a nitrogen-containing organic compound having a structure of amine, quaternary ammonium compound and/or imine, obtained by hydrolyzing a zirconium salt or an oxyzirconium salt in a solution including water, polyvinyl alcohol, a zirconium salt or an oxyzirconium salt and a nitrogen-containing organic compound having a structure of amine, quaternary ammonium compound and/or imine coexist, removing a solvent and contacting with alkali.

Abstract: An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm2.

Abstract: An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm2. The electrochemical cell has an interfacial anode to cathode ratio of less than about 1.1.

Abstract: This invention relates to a non-aqueous electrolyte for a cell and an electrolyte for a polymer cell in which the risk of igniting-firing an aprotic organic solvent retained in the cell and leaked out of the cell through vaporization or the like when the temperature of the cell rises abnormally is reduced, and to a non-aqueous electrolyte for a cell and an electrolyte for a polymer cell comprising an aprotic organic solvent and a compound containing phosphorus and/or nitrogen in its molecule and having a difference of a boiling point from that of the aprotic organic solvent of not more than 25° C.

Abstract: A lithium-ion battery includes a positive electrode comprising a current collector and a first active material comprising LiCoO2 and a negative electrode comprising a current collector, a second active material, and a third active material. The second active material comprises a lithium titanate material and the third active material is V2O5. The third active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material.

Abstract: The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX1O)N?(OX2F) wherein X1 and X2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.

Abstract: A method according to the present invention is a method for producing an ionic liquid from a molten salt solution containing a molten salt constituted by combining the cation portion and the anion portion, the ionic liquid containing the molten salt as a main component, the method comprising: removing water from the molten salt solution, the step of removing the water including adding a compound in the molten salt solution, the compound being represented by General Formula (1): where at least two of R1 to R4 are a C1 to C8 alkoxy group(s), the rest of R1 to R4 are a hydrogen atom(s) or a C1 to C8 alkyl group(s). By this, it is possible to remove water from the molten salt solution regardless of whether the molten salt solution is hydrophilic or hydrophobic. The present invention provides a method of producing an ionic liquid, which method can remove water from any kind of ionic liquid economically, easily, and quickly.

Abstract: An electrolyte for a rechargeable lithium battery according to one embodiment of the present invention includes a modified polyether silicone oil, a carbonate, and a lithium salt. The electrolyte has improved thermal stability and lithium ion conductivity.

Abstract: It is an object of the present invention to provide a lithium ion secondary battery which suppresses overcharge while keeping battery characteristics. The lithium ion secondary battery has positive and negative electrodes facing each other via a separator and being filled with an electrolytic solution with a supporting electrolyte dissolved in an non-aqueous solvent, wherein the electrolytic solution contains a compound represented by Formula (1) (wherein A is oxygen, nitrogen, sulfur, selenium, silicon or phosphorus; R1 and R2 are each hydrogen or an organic group; and X1 to X12 are each hydrogen, a hydrocarbon group or halogen).

Abstract: An electrolyte solution used for an electrochemical device including an electrolyte and at least one of fluoro-containing compounds represented by the general formula (1): where, R1, R2 each represent a hydrogen atom, a fluorine atom, or an alkyl group of 1 to 10 carbon atoms in which R1 and R2 may be identical or different with each other, or a cyclic structure may be formed by providing bonding between the carbon atoms contained in R1 and R2.

Abstract: A process is provided to produce non-aqueous electrolytic solution for use in batteries having low acid content and low water content. The invention involves removing acids and water from non-aqueous electrolytic solutions typically found in lithium or lithium-ion batteries by using nitrogen-containing compounds such as triazines. After treatment by a triazine such as melamine, the concentrations of acids and water in the electrolytic solutions are substantially decreased. The present invention provides a process to prepare extremely pure electrolytic solutions having low (<20 ppm) concentrations of both water and acids.