Abstract: An electrode for a lithium secondary battery in which an alloy thin film containing Sn (tin) and In (indium) is formed on the surface of a current collector having a surface roughness Ra of 0.1 &mgr;m or more, and a lithium secondary battery using thereof.

Abstract: An electrode for lithium secondary battery having a current collector and, deposited thereon, a thin film comprising silicon as a main component, characterized in that the thin film comprising silicon contains at least one of the elements belonging to the groups IIIa, Iva, Va, VIa, VIIa, VIII, Ib and IIb in the fourth, fifth and sixth periods of the Periodic Table (exclusive of copper (Cu)) at least in the surface portion thereof.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode comprising a positive electrode material attached to a positive electrode current collector, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode material comprises a positive electrode active material represented by LiaMnbNibCo1-2bO2 (wherein a is 0≦a≦1.1, and b is 0<b≦0.5), a binder and an electrically conductive agent, wherein the binder is contained in the positive electrode material in a range of 0.8˜3 weight %, and the density of the positive electrode material is not less than 3.0 g/cm3.

Abstract: An electrode having a current collector and, formed thereon, a thin film comprising an active material, characterized in that a thin alloy film (such as Sn—Co) comprising a metal which can form an alloy with lithium (such as Sn) and a metal which can not form an alloy with lithium (such as Co) is formed on a current collector such as a copper foil. It is preferred that the above metal which can form an alloy with lithium and the above metal which can not form an alloy with lithium can not form an intermetallic compound with each other.

Abstract: In a polymer electrolyte battery provided with a positive electrode, a negative electrode, and a polymer electrolyte, a polymer-based material containing a copolymer of ethylene glycol (meth)acrylate compound represented by the following general formula (1) and alkyl (meth)acrylate represented by the following general formula (2) is used as said polymer electrolyte.

Abstract: A lithium secondary battery to be mounted on a substrate including a positive electrode, a negative electrode containing an alloy of lithium and aluminum, and a non-aqueous electrolyte containing a solute and a solvent; wherein the solvent contains propylene carbonate and diethylene glycol dialkyl ether. More preferably, the solvent also contains trialkyl phosphate.

Abstract: A lithium primary battery contains a positive electrode and a negative electrode, wherein the positive electrode comprises manganese dioxide containing boron and phosphorus and the negative electrode comprises lithium or lithium alloy.

Abstract: The present invention provides a lithium polymer secondary battery having at least a basic battery cell including a positive electrode, a negative electrode and a polymer electrolyte in an outer can, wherein the battery has a suitable structure to use the polymer electrolyte polymerized in the battery and has excellent cycle characteristics. One of the electrodes is U-shaped and the other electrode is inserted in the U-shaped electrode. The polymer electrolyte includes a polymer containing a polyalkylene oxide structure and a solvent and is polymerized in the battery. The thickness of the battery is not greater than 2 mm.

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: A negative electrode for a lithium battery includes a carbon material capable of occluding and discharging lithium and an additive material having a higher potential to discharge lithium than the carbon material, wherein the additive material is contained in a range of 0.01-9.0 weight % based on the weight of the carbon material, an average particle diameter of the carbon material is in a range of 0.01-50 &mgr;m, and an average particle diameter of the additive material is in a range of 0.01-50 &mgr;m. A lithium battery of the invention includes the negative battery.

Abstract: In an electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that has the capability to store and release lithium either electrochemically or chemically and deposited on the current collector, the current collector comprises a copper alloy and has a tensile strength of 400 N/mm2 or higher, a proportional limit of 160 N/mm2 or higher, an elastic coefficient of 1.1 N/mm2 or higher and a surface roughness Ra of 0.01-1 &mgr;m at its surface that carries the thin film of active material thereon.

Abstract: A lithium secondary battery comprising a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode or the negative electrode is an electrode obtained by depositing a thin film of active material capable of lithium storage and release on a current collector, the thin film is divided into columns by gaps formed therein in a manner to extend in its thickness direction and the columnar portions are adhered at their bottoms to the current collector, and the nonaqueous electrolyte contains at least one selected from phosphate ester, phosphite ester, borate ester and carboxylic ester having a fluoroalkyl group.

Abstract: A first lithium secondary battery of the present invention is formed by placing at least a positive electrode, a negative electrode, and a non-aqueous electrolyte in a battery case in which a positive electrode connecting member to which the positive electrode is connected and a negative electrode connecting member to which the negative electrode is connected are electrically separated, wherein said positive electrode connecting member is composed of clad material comprising one of aluminum or aluminum alloy and one of austenitic stainless steel or ferrite stainless steel, and the aluminum or aluminum alloy in the clad material is in the positive electrode side.

Abstract: An electrode for a lithium secondary battery comprises a current collector composed of a metal incapable of alloy formation with lithium, a thin film formed by depositing on the current collector and composed of an active material containing tin as a main component, and a tin oxide layer formed on the surface of the thin film.

Abstract: In a lithium battery comprising a positive electrode for which manganese dioxide is employed, manganese dioxide containing 0.1 to 3% by weight of boron is employed as the positive electrode and a lithium alloy containing 0.05 to 2% by weight of aluminum is employed as the negative electrode.

Abstract: An electrode for a rechargeable lithium battery, comprising a current collector layer composed of a metal incapable of alloying with Li, an active material layer provided on said current collector layer and composed of a metal capable of alloying with Li and a surface coating layer provided on a surface of said active material layer, opposite to the surface on which the current collector layer is provided, and composed of a metal incapable of alloying with Li or composed of an alloy of a metal incapable of alloying with Li and a metal capable of alloying with Li.

Abstract: The present invention provides a lithium polymer secondary battery having at least a basic battery cell including a positive electrode, a negative electrode and a polymer electrolyte in an outer can, wherein the battery has a suitable structure to use the polymer electrolyte polymerized in the battery and has excellent cycle characteristics. One of the electrodes is U-shaped and the other electrode is inserted in the U-shaped electrode. The polymer electrolyte includes a polymer containing a polyalkylene oxide structure and a solvent and is polymerized in the battery. The thickness of the battery is not greater than 2 mm.

Abstract: The battery of this invention includes a positive electrode including a gelled polymeric electrolyte (A) and using spinel type lithium manganese oxide as an active material; a negative electrode; a gelled polymeric electrolyte (B) in the shape of a film or sheet also serving as a separator, and both the gelled polymeric electrolyte (A) and the gelled polymeric electrolyte (B) are made from a polymer of poly(alkylene oxide) series impregnated with a liquid electrolyte. Since the battery includes the positive electrode using the specific gelled polymeric electrolyte (A), a contact area between the positive electrode active material and the gelled polymeric electrolyte is large, so as to attain large initial discharge capacity (at high rate discharge in particular).

Abstract: An electrode for a lithium secondary battery in which an alloy thin film containing Sn (tin) and In (indium) is formed on the surface of a current collector having a surface roughness Ra of 0.1 &mgr;m or more, and a lithium secondary battery using thereof.

Abstract: A nonaqueous electrolyte secondary battery comprising: a positive electrode composed of a metal oxide; a negative electrode composed of carbon material capable of electrochemically absorbing and desorbing lithium; and a nonaqueous electrolyte, wherein LiCo1-aTiaO2 (0.003≦a≦0.015) is used as positive active material.