Abstract: Disclosed is a negative active material composition for a rechargeable lithium battery, a method of producing a negative electrode for a rechargeable lithium battery using the same, and a rechargeable lithium battery using the same. The negative active material composition includes a negative active material, an additive capable of forming a surface electrolyte interface film on a negative electrode during charge and discharge, a binder, and an organic solvent.

Abstract: An anode active material for a lithium rechargeable battery, the anode active material including: a base material which is alloyable with lithium and a metal nitride disposed on the base material.

Abstract: The present invention relates to a battery comprising at least a positive electrode, a negative electrode and an electrolyte as composing elements, wherein the positive electrode and/or the negative electrode comprise an active material of nitroxyl radical compound represented by the following general formula (1) as a starting material or a reaction product of at least a discharge reaction of electrode reactions: 1

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a titanium-containing oxide. The nonaqueous electrolyte contains a compound having a functional group represented by the formula (1) below and a sultone having an unsaturated hydrocarbon group. [Chem.

Abstract: A lithium secondary battery for use in electric vehicle, includes: a battery case, and an electricity-generating body including a positive electrode, a negative electrode, and a separator, the positive and the negative electrode being wound or laminated via the separator so that the positive electrode and negative electrode are not brought into direct contact with each other. Each single battery has a ratio (X/E) of battery output X (W) and battery energy E (Wh), of 2 to 36 or a product (R×E) of battery internal resistance R (m?) and battery energy E (Wh), of 50 to 900 (m?·Wh). The lithium secondary battery is used in an electric vehicle as combined batteries formed by connecting a required number of the single batteries in series.

Abstract: A lithium-ion battery comprising a first electrode made of cathodic material, a second electrode made of anodic material and an electrolyte, said lithium-ion battery containing an overcharge protection material consisting of redox molecules, characterized by the fact that said redox molecules have a reduction potential which is lower than said anodic material.

Abstract: A lithium secondary battery-use electrode and a lithium secondary battery, which are high in discharge capacity and excellent in cycle characteristics, characterized in that a layer consisting of a metal alloying with Li is provided on a substrate consisting of a metal not alloying with Li, and a layer having these metals mixed therein is formed between the above layer and the substrate.

Abstract: The purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which has improved cycle characteristics and the negative electrode of which comprises a silicon oxide. The present invention relates to a lithium ion secondary battery comprising a silicon oxide and an electrolyte solution comprising a fluorinated acid anhydride.

Abstract: A positive electrode for lithium secondary battery includes a collector obtained by forming a carbonaceous material film on the surface of a conductive substrate, and a positive electrode material layer carried on the carbonaceous material film side of the collector and containing an organic sulfide compound as a main active material.

Abstract: An electrolyte for a secondary battery containing an aprotic solvent which contains at least imide anion, transition metal ion and a compound containing a sulfonyl group in an aprotic solvent 15. The electrolyte has the performance such as the excellent energy density and electromotive force, and the secondary battery using the electrolyte is excellent in the cycle life and the safety.

Abstract: A negative electrode for lithium secondary battery includes a negative electrode collector having a proportional limit of not less than 2.0 N/mm and having a negative electrode material attached thereon, and the negative electrode material including a material to be alloyed with lithium.

Abstract: The present invention provides a lithium secondary battery having excellent battery characteristics such as battery cycling property, electrical capacity and storage property. The present invention relates to a nonaqueous electrolytic solution for lithium secondary batteries in which an electrolyte salt is dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution comprising a formic ester compound having a specific structure in an amount of 0.01 to 10% by weight of the nonaqueous electrolytic solution, and a lithium secondary battery using the same.

Abstract: A method for manufacturing a lithium ion secondary battery which can realize strong bonds between layers and a high ion conducting property within the layers by sintering as the layers constituted of a solid electrolyte layer, a positive electrode layer, and a negative electrode layer are sintered and bonded mutually is provided. And the lithium ion secondary battery manufactured by the aforementioned method is also provided.

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte includes a non-aqueous organic solvent, lithium salt, and an additive that is either a dicarboxylic acid anhydride and a halogenated ethylene carbonate or a diglycolic acid anhydride and a halogenated ethylene carbonate.

Abstract: A lithium secondary battery comprising a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte is disclosed. The negative electrode active material is a powder of a silicon material containing boron and has a boron content in the range of 0.1-50 wt. %.

Abstract: Provided are a lithium-ion secondary battery capable of measuring the concentration of lithium ions in an stored electrolyte in a predetermined portion, an assembled battery using the same, a vehicle and a battery-equipped device equipped with the battery or the assembled battery, a battery system capable of acquiring the concentration-correlated physical quantity in the lithium-ion secondary battery, and a method for detecting the deterioration of the lithium-ion secondary battery. A lithium-ion secondary battery comprises a power generation element including a positive electrode plate and a negative electrode plate, a battery case housing the power generation element, and an electrolyte containing lithium ions and held in the battery case, and further comprises a stored-electrolyte physical quantity measuring means capable of measuring the concentration-correlated physical quantity having a correlation to the concentration of lithium ions in the stored electrolyte stored between the element and the case.

Abstract: A lithium ion secondary battery comprises a non-aqueous electrolytic solution, and a current collector which is coated with an active material and immersed in the electrolytic solution. By setting the coating thickness of said active material 5-80 &mgr;m, the power density of the lithium ion secondary battery is improved.

Abstract: A lithium ion secondary battery that can be charged without regard to polarity is disclosed. The lithium ion secondary battery includes a lithium ion secondary battery unit, which includes a first electrode layer and a second electrode layer that are laminated on an electrolytic region. The first electrode layer and the second electrode layer contain Li2Mn2O4 as a common active material.

Abstract: A nonaqueous electrolyte battery that includes a unit cell and a battery case that encloses the unit cell. The battery case includes a laminate film that encloses the unit cells by heat welding at least a portion of the laminate film. Upon heat welding, the unit cell further includes a number of electrode terminal leads in which a portion of the electrical terminal leads extend from the battery case. A sealant layer is further applied to at least a portion of the electrode terminal leads so as to contact the battery case upon heat welding in order to further seal the case and to further prevent short circuiting of the nonaqueous-electrolyte battery.

Abstract: An improved lithium-ion or lithium-polymer battery that is capacity-fade resistant. The battery includes an anode comprised of graphite where density of the graphite is in a range from 1.2 to 1.5 g/c3; and the battery further has a cathode that is comprised of LiNiO2 present at a density in a range from 3.0 to 3.3 g/c3. The battery also includes an electrolyte and a separator between the anode and cathode, and the separator is coated with PVDF such that the anode, cathode, and separator are held together to form the electricity-producing battery. The ratio by weight of LiNiO2 to graphite present in the battery is preferably no greater than 2.0 to 1.