Abstract: A battery material includes a compound having an imidazoline ring and an aromatic ring. The compound has a molecular weight of less than 350. The compound is, for example, 2-benzylimidazoline. The battery material, for example, further includes a solid electrolyte. The solid electrolyte has, for example, a particle shape. The compound is, for example, located between a plurality of particles of the solid electrolyte.

Abstract: The application provides a secondary battery and a device including the same. The secondary battery includes a negative electrode plate that includes a negative electrode film, where the negative electrode film includes a negative electrode active material; electrolyte that includes an electrolyte salt, an organic solvent and an additive, where the negative electrode active material includes a silicon-based material; the organic solvent includes dimethyl carbonate (DMC); and the additive includes one or more of compound shown in Formula 1 as discloses in the application, where, R1 is selected from one of C2˜C4 alkylene or halogenated alkylene, C2˜C4 alkenylene or halogenated alkenylene, C6˜C18 arylene and derivatives thereof. Under the premise of having a high energy density, the secondary battery and the device including the same according to the application can also have good high-temperature cycle performance and high-temperature storage performance.

Abstract: Provided are an electrolyte additive for lithium secondary batteries, an electrolyte for lithium secondary batteries including the same, and a lithium secondary battery including the electrolyte, the additive including a compound represented by Formula 1 below: In Formula 1, R1 to R6 are as defined in the detailed description.

Abstract: Disclosed herein are batteries comprising cathodes having halogenated compounds as cathode active materials and including a greenhouse gas within the battery. The halogenated batteries can be operated under an atmosphere comprising a greenhouse gas, wherein the battery is fabricated under a greenhouse gas atmosphere, or wherein the greenhouse gas is introduced into the battery before use. Also disclosed herein are methods of fabricating batteries comprising cathodes having halogenated compounds as cathode active materials and including a greenhouse gas within the battery. The halogenated batteries can include an aliphatic nitrile compound as part of the electrolyte, an organic material having a conjugated cyclic structure as part of the cathode active material, or a metal oxide as part of the anode active material to improve the battery performance.

Abstract: An electrolyte for a lithium-sulfur battery including a lithium salt, a non-aqueous organic solvent, and an additive. The non-aqueous organic solvent includes an ether compound and a heterocyclic compound. The heterocyclic compound includes one or more double bonds and comprises an oxygen atom or a sulfur atom. The additive includes a carbonate compound.

Abstract: An electrolyte includes a compound of formula 1: formula 1. R1 and R2 are each independently selected from H, halogen atom, a substituted or unsubstituted C1-10 alkyl group, a substituted or unsubstituted C3-10 cycloalkyl group, a substituted or unsubstituted C2-10 alkenyl group, a substituted or unsubstituted C2-10 alkynyl group, a substituted or unsubstituted C1-10 alkoxy group, a substituted or unsubstituted C6-10 aryl group, a substituted or unsubstituted C3-10 heteroaryl group, or any combination thereof.

Abstract: The present invention provides a method for producing an electrolyte which is capable of retaining a high magnesium ion concentration. A method for producing an electrolyte in accordance with an aspect of the present invention comprises the step of: mixing a solvent, metal magnesium, and an elemental halogen, the metal magnesium being a metal containing magnesium in an amount of not less than 96% by weight with respect to 100% by weight of a total weight of the metal.

Abstract: A hybrid solid state electrolyte (SSE) can include a plurality of SSE particles suspended in a salt-in-solvent (SIS). A battery can include the hybrid SSE. The battery can be formed by at least forming the hybrid SSE in situ. Forming the hybrid SSE in situ can include: depositing, on a surface of an electrode of the battery, a mixture comprising the SSE particles and at least a portion of salt for the SIS; filling the battery with a solvent; and heating the battery to form the SIS by at least melting and/or dissolving the portion of the salt into the solvent.

Abstract: The present invention relates to negative electrode carbon materials for lithium-ion batteries, and particularly to a lithium-ion battery negative electrode active material, a lithium-ion battery negative electrode, a lithium-ion battery, a battery pack and a battery-powered vehicle. In a pore structure, measured by N2 adsorption and desorption, of the lithium-ion battery negative electrode carbon particles, by using the total pore volume measured by BJH having a pore size of 2-200 nm as the reference, the sum of the volumes of pores with a pore size of 2-10 nm is 2-10%, the sum of the volumes of pores with a pore size of 10-100 nm is 30-65%, and the sum of the volumes of pores with a pore size of 100-200 nm is 30-65%, and the carbon particles have a BET specific surface area of 0.9-1.9 m2/g.

Abstract: Electrolytes, articles, and methods for reducing gases produced during the operation of an electrochemical cell are generally described. The inclusion of silylated sulfonic acid esters can reduce the amount of gases produced in an electrochemical cell (e.g., a battery).

Abstract: A non-aqueous liquid electrolyte secondary battery using negative-electrode active material having Si, Sn and/or Pb, with high charge-capacity, superior characteristics including discharge-capacity retention rate over long is provided. Its non-aqueous liquid electrolyte contains carbonate having unsaturated bond and/or halogen and compounds like LiPF6 and/or LiBF4 (first lithium salt) and lithium salt different from said first one, represented by formula below (second lithium salt). Lil(?mXan) (In the formula, l, m and n represent integers of 1 to 10, 1 to 100 and 1 to 200, respectively. ? represents boron, carbon, nitrogen, oxygen or phosphorus. Xa represents functional group having atom selected from 14th to 17th groups of periodic table at its binding-position to ?. Two or more of Xa may be connected to each other to form a ring structure. However, such a case where ? is boron and Xa is compound represented by (CiH2(i-2)O4)(CjH2(j-2)O4) is omitted (i and j represent integers of 2 or larger).

Abstract: This disclosure relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. For example, the electrolyte for a lithium secondary battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes at least one borate-based lithium salt selected from lithium tetrafluoroborate (LiBF4), lithium bis(oxalate)borate (LiBOB), lithium difluoro(oxalato)borate (LiFOB), lithium bis(2-methyl-2-fluoro-malonato)borate, and a combination thereof; and a compound represented by Chemical Formula 1. The detailed description of Chemical Formula 1 is the same as that defined in the specification.

Abstract: An electrolyte for a lithium-containing battery cell is described. The electrolyte includes a solvent having at least one carbonate ester, and at least one lithium salt having a concentration ranging from 3 mol/liter to 15 mol/liter in the solvent. The electrolyte also includes a diluent that includes an aromatic fluorocarbon. In some embodiments, the solution of the at least one lithium salt and the solvent is a supersaturated solution for at least some operating temperatures of the battery cell. Also described are lithium-containing battery cells that include a positive electrode, a negative electrode, and the electrolyte.

Abstract: An electrolyte solution containing a compound represented by the following formula (1): wherein R101 and R102 are the same as or different from each other and are each a hydrogen atom, a fluorine atom, or an alkyl group optionally containing a fluorine atom; and R103 is an alkyl group or an organic group containing an unsaturated carbon-carbon bond. Also disclosed is an electrochemical device and lithium ion secondary battery including the electrolyte solution, and a module including the electrochemical device or lithium ion secondary battery.

Abstract: A polymer includes a repeating unit represented by at least one of Formula 1a or Formula 1b: wherein, in Formulae 1a or 1b, CY1 is a group represented by at least one of Formula 1-2 or Formula 1-4, CY2 is a group represented by Formula 1-3, and L1, L2, a1, and a2 are defined the same as in the specification, and in Formulae 1-2, Formula 1-3, or 1-4, X, Y, R1, R2, R11 to R14, b1, b2, R21, R22, b21, b22, Z1, Z2, c1, and c2 are defined the same as in the specification.

Abstract: An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolyte solution. The solid electrolyte layer includes a ?-conjugated conductive polymer. The electrolyte solution contains a solvent and a solute, and the solvent contains a glycol compound and a sulfone compound. A proportion of the glycol compound contained in the solvent is 10% by mass or more. A proportion of the sulfone compound contained in the solvent is 30% by mass or more. A total proportion of the glycol compound and the sulfone compound contained in the solvent is 70% by mass or more.

Abstract: Disclosed is an electrolyte solution for lithium secondary batteries, including a cyclic sulfonic acid ester represented by the general formula (1): wherein, in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, halogen or an amino group with the proviso that R1 and R2 do not represent hydrogen atoms at the same time; and R3 represents methylene which may be substituted with fluorine. Batteries using this electrolyte solution are excellent in battery properties and storage characteristics.

Abstract: An electrical energy storage device 20 is disclosed as a secondary battery device 22 having an anode 28 containing Aluminum and Indium and a cathode 38 that includes an electroactive layer 42 with a host lattice 44 having a conjugated system with delocalized ? electrons. A dopant 48 containing Aluminum is bonded with and intercalated in the host lattice 44. A membrane 34 of cellulose is wetted with a non-aqueous electrolyte 24 containing glycerol and first ions 26 containing Aluminum and having a positive charge and second ions 27 containing Aluminum and having a negative charge, and is sandwiched between the anode 28 and the cathode 38. A method for constructing a secondary battery device 22 is disclosed as well, including steps for producing the electrolyte 24, the anode 28, and the cathode 38 including the dopant 48.

Abstract: The rechargeable lithium ion battery includes a positive active material including a lithium compound, a non-aqueous electrolyte including at least one disulfonate ester selected from a cyclic disulfonate ester represented by Chemical Formula 1 and a linear disulfonate ester represented by Chemical Formula 2, and includes at least one carbonate having an unsaturated bond selected from vinylene carbonate and vinylethylene carbonate. The non-aqueous electrolyte may include about 0.05 wt % to about 0.5 wt % of the disulfonate ester based on the total weight of the non-aqueous electrolyte, and about 0.2 wt % to about 1.5 wt % of the carbonate having the unsaturated bond based on the total weight of the non-aqueous electrolyte.

Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a glycerol solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.

Abstract: The exemplary embodiment has an object to provide a nonaqueous electrolyte solution having a flame retardancy over a long period and having a good capacity maintenance rate. The exemplary embodiment is a nonaqueous electrolyte solution containing a lithium salt, at least one oxo-acid ester derivative of phosphorus selected from compounds represented by a predetermined formula, and at least one disulfonate ester selected from a cyclic disulfonate ester and a linear disulfonate ester represented by the predetermined formulae.

Abstract: The rechargeable lithium ion battery includes a positive active material including a lithium compound, a non-aqueous electrolyte including at least one disulfonate ester selected from a cyclic disulfonate ester represented by Chemical Formula 1 and a linear disulfonate ester represented by Chemical Formula 2, and includes at least one carbonate having an unsaturated bond selected from vinylene carbonate and vinylethylene carbonate. The non-aqueous electrolyte may include about 0.05 wt % to about 0.5 wt % of the disulfonate ester based on the total weight of the non-aqueous electrolyte, and about 0.2 wt % to about 1.5 wt % of the carbonate having the unsaturated bond based on the total weight of the non-aqueous electrolyte.

Abstract: The present invention relates to a nonaqueous electrolyte solution comprising a lithium salt and a nonaqueous organic solvent, wherein the nonaqueous electrolyte solution comprises a specific sulfonic acid ester.

Abstract: It is an object of this exemplary embodiment to provide a lithium ion battery using a lithium manganese complex oxide, in which the dissolution of manganese and resistance increase are inhibited, and which is excellent in life characteristics at high temperature. One aspect of this exemplary embodiment is a lithium ion battery comprising at least a positive electrode comprising a positive electrode active material, and an electrolytic solution, wherein the positive electrode active material is a lithium manganese complex oxide, the positive electrode comprises a bismuth oxide, and a metal compound attached to part of a surface of the lithium manganese complex oxide, and a dissolution rate of a metal of the metal compound in the electrolytic solution is lower than a dissolution rate of manganese of the lithium manganese complex oxide.

Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein the positive electrode contains a positive electrode active material having an olivine structure, and the nonaqueous electrolyte contains at least one member of sulfone compounds represented by the following formulae (1) and (2). wherein R1 represents CmH2m-n1Xn2; X represents a halogen; m represents an integer of from 2 to 7; each of n1 and n2 independently represents an integer of from 0 to 2m; R2 represents CjH2j-k1Zk2; Z represents a halogen; j represents an integer of from 2 to 7; and each of k1 and k2 independently represents an integer of from 0 to 2j.

Abstract: An organic electrolyte for magnesium batteries including an ether solvent; a magnesium compound represented by Formula 1 dissolved in the ether solvent; and a Lewis acid: wherein CY1 is an optionally substituted C6-C50 aromatic ring, X1 is, each independently, an electron withdrawing group, X2 is a halogen, n is an integer of 1 to 10, and an angle between a CY1-X1 bond and a CY1-Mg bond is 150 degrees or less.

Abstract: A positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery using the same, the positive active material including a secondary particle formed of a plurality of primary particles, the primary particles being made of a metal compound capable of intercalating/deintercalating lithium; and a coating layer on a surface of the secondary particle in an island arrangement, the coating layer including a metal oxide, wherein the secondary particle includes pores formed by the primary particles, the pores including a surface pore on the surface of the secondary particle and an internal pore inside the secondary particle, and the metal oxide of the coating layer fills a portion of the surface pore of the secondary particle.

Abstract: Disclosed is a nonaqueous electrolyte solution containing a sultone compound represented by the Formula 1 below (wherein R1 to R4 respectively represent a hydrogen, a fluorine, a hydrocarbon group with 1 to 12 carbon atoms that may contain fluorine atom(s), n represents an integer of 0 to 3, and when n is 2 or 3, the two or three R3 groups are independent from each other and the two or three R4 groups are independent from each other), and an ethylene carbonate having a hydrogen atom substituted by a fluorine atom. Also disclosed is a lithium secondary battery employing the nonaqueous electrolyte solution. This nonaqueous electrolyte solution does not cause an increase in the internal resistance of a nonaqueous electrochemical device and improves the lifespan characteristics of the device. The lithium secondary battery containing the nonaqueous electrolyte solution exhibits greatly improved cycle charge/discharge characteristics at high temperature, and has excellent charge/discharge load characteristics.

Abstract: The present invention provides a non-aqueous electrolytic solution for a lithium secondary battery, wherein the lithium secondary battery includes, as a cathode active material, a composite oxide in which at least 35% by mole of a transition metal included in the composite oxide is manganese, and wherein the non-aqueous electrolytic solution includes an unsaturated sultone.

Abstract: To provide a non-aqueous electrolyte storage element, including: a positive electrode which includes a positive-electrode active material capable of intercalating or deintercalating anions; a negative electrode which includes a negative-electrode active material capable of storing or releasing metallic lithium or lithium ion, or both thereof; a first separator between the positive electrode and the negative electrode; and a non-aqueous electrolyte which includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent, wherein the non-aqueous electrolyte storage element includes a solid lithium salt at 25° C. and a discharge voltage of 4.0 V, wherein the non-aqueous electrolyte storage element includes an ion-exchange membrane between the first separator and the positive electrode, between the first separator and the negative electrode, or between the first separator and the positive electrode and between the first separator and the negative electrode.

Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery includes a nonaqueous electrolytic solution, a positive electrode and a negative electrode is provided. The nonaqueous electrolytic solution comprises a nonaqueous solvent. The nonaqueous solvent comprises from 50 to 95% by volume of a sulfone-based compound represented by the following formula 1: wherein R1 and R2 are each an alkyl group having 1 to 6 carbon atoms and satisfy R1?R2. The positive electrode comprises a composite oxide represented by Li1-xMn1.5-yNi0.5-zMy+zO4. The negative electrode comprises a negative electrode active material being capable of absorbing and releasing lithium at 1 V or more based on a metallic lithium potential.

Abstract: A non-flammable quasi-solid electrolyte and a rechargeable non-lithium alkali metal cell containing this electrolyte. The electrolyte comprises an alkali metal salt dissolved in an organic liquid solvent with a concentration higher than 2.5 M (preferably >3.5 M) or a molecular ratio greater than 0.2 (preferably >0.3), wherein the alkali metal is selected from Na, K, a combination of Na and K, or a combination of Na and/or K with Li. The alkali metal salt concentration is sufficiently high so that the electrolyte exhibits a vapor pressure <0.01 kPa when measured at 20° C., a vapor pressure <60% of the vapor pressure of thet organic solvent when measured alone, a flash point at least 20 degrees Celsius higher than a flash point of the organic liquid solvent when measured alone, a flash point higher than 150° C., or no detectable flash point.

Abstract: A secondary battery having an electrode active material mainly composed of an organic compound that includes, in a constituent unit, at least one compound selected from the group consisting of a dithione compound having a dithione structure, a dione compound having a dione structure, an organic radical compound containing a stable radical group and a diamine compound having a diamine structure. The secondary battery also has an electrolyte that contains a chain sulfone compound.

Abstract: The present invention includes [1] a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution and being capable of improving electrochemical characteristics in a broad temperature range; and [2] an energy storage device including a positive electrode, a negative electrode, and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution.

Abstract: What is disclosed is a non-aqueous electrolyte for non-aqueous electrolyte battery including a non-aqueous solvent and at least lithium hexafluorophosphate as a solute. This electrolyte is characterized by containing at least one siloxane compound represented by the general formula (1) or the general formula (2). This electrolyte has a storage stability which is improved than electrolytes prepared by adding conventional siloxane compounds.

Abstract: The present invention discloses a rechargeable lithium battery including a positive electrode, a negative electrode including lithium titanate represented by Chemical Formula 1, and an electrolyte impregnating the positive and negative electrodes and including a sultone-based compound and maleic anhydride, wherein the sultone-based compound and the maleic anhydride are respectively included in an amount of about 0.5 wt % to about 5 wt % based on the total weight of the electrolyte. Chemical Formula 1: Li4?xTi5+x?yMyO12. In Chemical Formula 1, M is an element selected from Mg, V, Cr, Nb, Fe, Ni, Co, Mn, W, Al, Ga, Cu, Mo, P, or a combination thereof, 0?x?1, 0?y?1.

Abstract: An electrolyte includes a solvent and an electrolyte salt. The solvent contains at least one selected from ester compounds, lithium monofluorophosphate, and lithium difluorophosphate, and at least one selected from anhydrous compounds. The ester compounds are chain compounds having ester moieties, such as (—O—C(?O)—O—R), at both ends. The anhydrous compounds are cyclic compounds having, for example, a disulfonic anhydride group, (—S(O?)2—O—S(O?)2—).

Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein an open circuit voltage in a completely charged state per pair of a positive electrode and a negative electrode is from 4.25 to 6.

Abstract: An improved lithium-sulfur battery containing a surface-functionalized carbonaceous material. The presence of the surface-functionalized carbonaceous material generates weak chemical bonds between the functional groups of the surface-functionalized carbonaceous material and the functional groups of the polysulfides, which prevents the polysulfide migration to the battery anode, thereby providing a battery with relatively high energy density and good partial discharge efficiency.

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: The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems.

Abstract: The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages.

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: A new electrolytic solution system for lithium secondary batteries. Provided is a lithium secondary battery electrolytic solution containing a nonaqueous solvent and a lithium salt. The nonaqueous solvent is mixed at an amount of not more than 3 mol with respect to 1 mol of the lithium salt.

Abstract: The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device.

Abstract: The invention relates to lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate, the use of lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate as electrolyte salt in lithium-based energy stores and also ionic liquids comprising 1-trifluoro-methoxy-1,2,2,2-tetrafluoro-ethanesulphonate as anion.

Abstract: The invention relates to the use of lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate as a conductive salt in lithium-based energy stores and to electrolytes containing lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate.

Abstract: An flight-safe indicator for a battery displays the flight-safety state of a battery to be transported by an aircraft. The indicator can be easily recognized by ground personnel anywhere regardless of the language they speak or read. The indicator comprises an icon indicating that the battery is safe for flight and would be easily recognized by personnel at an airport. The icon would be placed on the battery or on the battery packaging prior to loading on the aircraft. When the magnitude of power stored on the battery exceeds a safety threshold, the icon changes to an indication that the battery is not safe for transporting by aircraft and the operator may discharge the battery using a load until it reaches a safe level.

Abstract: A secondary battery capable of suppressing resistance rise even after repeated charge and discharge is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains titanium-containing lithium composite as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride.

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.