Abstract: An organic electrolyte solution including: a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a silane-based compound represented by Formula 1 below: In Formula 1, m and n are each independently integers of from 1 to 30; and R1, R2, R3, R4, R5, R6, R7, and R8 are represented in the detailed description of the present invention. The organic electrolyte solution can be included in a lithium battery, so as to suppress the degradation of an electrolyte, and to improve cycle properties and life span of the battery.

Abstract: A rechargeable lithium battery includes a positive electrode having a positive active material to reversibly intercalate and deintercalate lithium ions, a negative electrode having a negative active material, and an electrolyte, wherein an arithmetic mean Ra of a surface roughness of the positive electrode is 155 to 419 nm, and an arithmetic mean Ra of a surface roughness of the negative electrode is 183 to 1159 nm after the rechargeable lithium battery is charged and discharged.

Abstract: A composite anode active material includes a composite of a carbon-based anode active material, a metal-based anode active material and polymer particles. By increasing the conductivity of the composite anode active material, a lithium battery having a large capacity, high initial efficiency, high rate capability and improved cycle life performance can be obtained. An anode includes the composite anode active material and a lithium battery includes the anode.

Abstract: Anodes for lithium batteries and lithium batteries employing the anodes are provided. In one embodiment, an anode includes an anode active material, and a binder including a waterborne acrylic polymer and a water-soluble polymer. The binder permeates the anode active materials to provide binding force between the anode active materials through point binding. The binder has excellent binding force and elasticity, and does not experience the spring-back phenomenon during electrode manufacture. The anodes have improved assembly density, high capacity and high energy density. Further, the anodes have improved lifetime characteristics since the anode structure is maintained long term over repeated charge/discharge cycles.

Abstract: A polyurethane binder prepared by a polyurethane compound having double bonds and by crosslinking the polyurethane compounds. The polyurethane binder having double bonds can be dispersed in water with the dispersant including a reactive group such as a carboxyl group, and thus an organic solvent is not required to produce an electrode. The crosslinked polyurethane binder with a high crosslinking density provides an excellent elastic force and binding force, and thus the electrode and the lithium battery employing the polyurethane binder have improved recovery properties and charge/discharge properties.

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: Provided is an organic electrolytic solution including a lithium salt and an organic solvent containing an alkoxy-containing compound such as 1,1,3-trimethoxypropane. When polyglyme and an organic compound having dioxolane moiety are further added into the organic electrolytic solution, a lithium metal stabilizing effect and the ionic conductivity of lithium ions are enhanced, and thus, the charging/discharging efficiency of lithium is greatly improved. Such an organic electrolytic solution can be effectively used for any kind of lithium batteries and lithium sulfur batteries, even whose which use a lithium metal anode.

Abstract: An electrode including a binder comprising a waterborne polyurethane polymer compound and an electrode active material is provided. The waterborne polyurethane polymer compound improves the binding properties of the electrode. In addition, the polymer compound disperses well in water and is hardened through a crosslinking reaction to increase elastic force, thereby enabling adjustment of elastic and binding forces. As a result, a battery including the polymer compound has excellent recovery and charge/discharge properties.

Abstract: Provided are a fluoride copolymer, a polymer electrolyte comprising the fluoride copolymer, and a lithium battery employing the polymer electrolyte. The polymer electrolyte preferably includes as the fluoride copolymer at least one fluoride polymer selected from a polyethylene glycol methylether (meth)acrylate (PEGM)A)-2,2,2-trifluoroethylacrylate (TFEA) polymer, a PEGMA-TFEA-acrylonitrile (AN) polymer, a PEGMA-TFEA-methyl methacrylate (MMA) polymer, a PEGMA-TFEA-vinylpyrrolidone (VP) polymer, a PEGMA-TFEA-trimethoxyvinylsilane (TMVS) polymer, and a PEGMA-TFEA-ethoxy ethylacrylate (EEA) polymer.

Abstract: Disclosed is a lithium secondary battery including a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive and negative electrodes; and an electrolyte, where an alkaline metal powder layer is formed by dispersion coating on a surface of at least one of the positive and negative electrodes and the separator.

Abstract: Provided is a method of preparing a lithium metal anodeincluding forming a current collector on a substrate that includes a release component; depositing a lithium metal on the current collector; and releasing the current collector with the deposited lithium metal from the substrate. The method may produce a lithium metal anode with a clean lithium surface and a current collector with a small thickness. The lithium metal anode may be used to increase the energy density of a battery.

Abstract: The present invention is related to compositions and methods for producing a lithium battery with enhanced performance. In particular, the present invention is directed to increasing the solubility of a carboxymethyl cellulose-based binder in water. When the solubility of the carboxymethyl cellulose-based binder is improved, the electrode manufacturing process may be stabilized, and the dispersibility and adhesive force of the electrode may also be improved. As a result, a lithium battery with excellent characteristics may be manufactured. Additionally, the present invention is also directed to an environmentally-friendly manufacturing process for fabricating an anode whereby water is used as the slurry medium, and a lithium battery containing the anode.

Abstract: A rechargeable lithium battery includes a positive electrode having a positive active material to reversibly intercalate and deintercalate lithium ions, a negative electrode having a negative active material, and an electrolyte, wherein an arithmetic mean Ra of a surface roughness of the positive electrode is 155 to 419 nm, and an arithmetic mean Ra of a surface roughness of the negative electrode is 183 to 1159 nm after the rechargeable lithium battery is charged and discharged.

Abstract: Disclosed is a composition for protecting a negative electrode for a lithium metal battery including a multifunctional monomer having at least two double bonds for facilitating cross-linking, a plasticizer, and at least one alkali metal salt.

Abstract: A negative electrode of a rechargeable lithium battery includes a current collector, a negative active material layer on one side of the current collector, a protection layer on the negative active material and a releasing layer on the other side of the current collector, or on the protection layer.

Abstract: A negative electrode includes a first polymer layer, a second polymer layer on the first polymer layer, a metal layer on the second polymer layer and a negative active material layer on the metal layer.

Abstract: Provided is an organic electrolytic solution including a lithium salt and an organic solvent containing an alkoxy-containing compound such as 1,1,3-trimethoxypropane. When polyglyme and an organic compound having dioxolane moiety are further added into the organic electrolytic solution, a lithium metal stabilizing effect and the ionic conductivity of lithium ions are enhanced, and thus, the charging/discharging efficiency of lithium is greatly improved. Such an organic electrolytic solution can be effectively used for any kind of lithium batteries and lithium sulfur batteries, even whose which use a lithium metal anode.

Abstract: Provided are a fluoride copolymer, a polymer electrolyte comprising the fluoride copolymer, and a lithium battery employing the polymer electrolyte. The polymer electrolyte preferably includes as the fluoride copolymer at least one fluoride polymer selected from a polyethylene glycol methylether (meth)acrylate (PEGM)A)-2,2,2-trifluoroethylacrylate (TFEA) polymer, a PEGMA-TFEA-acrylonitrile (AN) polymer, a PEGMA-TFEA-methyl methacrylate (MMA) polymer, a PEGMA-TFEA-vinylpyrrolidone (VP) polymer, a PEGMA-TFEA-trimethoxyvinylsilane (TMVS) polymer, and a PEGMA-TFEA-ethoxy ethylacrylate (EEA) polymer.