Abstract: A nonaqueous electrolyte lithium secondary cell comprising a positive electrode (1), a negative electrode (2) and a nonaqueous electrolyte containing a lithium salt is characterized by that the nonaqueous electrolyte contains a room temperature molten salt as a main component, a material wherein a working potential of the negative electrode (2) is nobler by above 1V than a potential of a metallic lithium is used for a negative active material of the negative electrode. This nonaqueous electrolyte lithium secondary cell has excellent safety and cell performance.

Abstract: A lithium battery excellent in initial capacity, high rate discharge performance, low temperature performance and cycle life performance can be provided without the necessity of any special production step. In other words, the present invention lies in a lithium battery having a power-generating element comprising at least a positive electrode, a negative electrode and a separator wherein a gel electrolyte comprising at least a polymer and a liquid electrolyte is used in at least a part of the power-generating element, characterized in that the concentration of lithium salt in the liquid electrolyte is from 1.5 to 5 mols per l of the liquid electrolyte.

Abstract: A film-type lithium secondary battery in which at least one of a positive electrode (2), a negative electrode (3) and a separator (1) contains an electrolyte having a specified structure, the electrolyte having the above specified structure is composed of a liquid electrolyte and an organic polymer, the organic polymer is formed by polymerizing an organic monomer having a polymeric functional group at its molecular chain end, the organic polymer contains in its molecule a first chemical structure and a second chemical structure, the first chemical structure is at least one of an ethylene oxide structure and a propylene oxide structure, and the second chemical structure is at least one kind selected from among an alkyl structure, a fluoroalkyl structure, a benzene structure, an ether group and an ester group.

Abstract: A nonaqueous electrolyte lithium secondary cell comprising a positive electrode (1), a negative electrode (2) and a nonaqueous electrolyte containing a lithium salt is characterized by that the nonaqueous electrolyte contains a room temperature molten salt as a main component, a material wherein a working potential of the negative electrode (2) is nobler by above 1V than a potential of a metallic lithium is used for a negative active material of the negative electrode. This nonaqueous electrolyte lithium secondary cell has excellent safety and cell performance.

Abstract: In a lithium battery comprising a positive electrode, a negative electrode and a gel electrolyte; the gel electrolyte is composed of at least an ester-group or ether-group aprotic polar solvent, a lithium salt and a polymeric compound, and the polymeric compound comprises a polymer of at least one compound among those expressed by an equation (I) and an equation (II). (k: zero or number of 1 or more, m: number of 1 or more, R1:CpH2p, R2:CqH2q, p≠q, p & q: integer of 1 or more, A: CH2═CH—CO— or CH2═C(CH3)—CO—, X: n-valent combination group (n: integer ranging from 1 to 4), r: zero or number of 1 or more, s: number of 1 or more, R3: CtH2t, R4: CuH2u, t≠u, t & u: integer of 1 or more).

Abstract: A separator for battery and a power generating element for battery from which a battery having both excellent battery properties and high liquid electrolyte leakage preventive properties can be prepared and a battery having both excellent battery properties and high liquid electrolyte leakage preventive properties are provided.

Abstract: A film-type lithium secondary battery, in which an electrolyte layer (13) composed only of an electrolyte integrated with an electrolyte in a cathode composite (11) is formed on a surface of the cathode composite (11) of a positive electrode (1), an electrolyte layer (23) composed only of an electrolyte integrated with an electrolyte in an anode composite (21) is formed on a surface of the anode composite (21) of a negative electrode (2), and the positive electrode (1) is opposed against the negative electrode (2) through the electrolyte layers (13 & 23).

Abstract: A secondary battery improved in its cathode composite, electrolyte and anode composite in order to accomplish an excellent charge/discharge characteristic, a long-term reliability and a high performance. The secondary battery is characterized in that the electrolyte is composed of an ion-conductive high-molecular compound including one or more kinds of ionic compounds in a dissolution state, and both the cathode composite and the anode composite have the ion-conductive high-molecular compound as their component material.

Abstract: This invention relates to a cathode composite for use in a primary battery and a secondary battery. In order to uniformly disperse a positive active material and a conductive agent in the cathode composite, wherein the cathode composite comprises a polar organic molecule, a chalcogen containing positive active compound, a conductive agent and a diluent, wherein the polar organic molecule has at least one acid structure based on phosphoric acid, sulfonic acid, boric acid, carboxylic acid or sulfuric acid and functions as a dispersant.

Abstract: A battery having a cathode composite made of an ion-conductive high-molecular weight compound; an electrolyte made of the ion-conductive high-molecular weight compound; and an anode made of an electrode active material or a composite which includes the ion-conductive high-molecular weight compound. The amount of sulphate ion, para-toluenesulfonate ion, chlorine ion, polyethylene glycol, acrylic acid and methacrylic acid etc. inside the battery is controlled to 0.1 wt % or less.

Abstract: A battery equipped with a cathode composite (2), an anode composite or an anode (4), an electrolyte layer (3) and a sealing material (6); characterized by that a material such as an element belonging to VIII-group of periodic table such as palladium etc., for example, is included in an inside of the battery. Gas produced in the battery inside is absorbed to the above material or added to a residual reactive double bond in an ion-conductive high-molecular compound by the above material, so that a rise of battery inside pressure due to gas is restrained and expansion and bursting of the battery are thus prevented.

Abstract: This invention relates to a cathode composite for use in a primary battery and a secondary battery. In order to disperse uniformly a positive active material and a conductive agent in the cathode composite, the cathode composite is characterized by that it includes a compound having a pyridine ring in its molecular structure which will become a polar molecule, and functioning as a dispersant.

Abstract: A lithium secondary battery includes a positive electrode, an electrolyte layer having a solid polymer electrolyte, and a negative electrode using metallic lithium or lithium alloy as an active material. The electrolyte layer includes a first layer and a second layer, and an electrolyte of the first layer in contact with the negative electrode is less reactive with a negative active material than to an electrolyte of the second layer.

Abstract: In a film type battery comprising a generating element which is formed by laminating a negative active material, an electrolyte and a positive active material into a layer shape, (1, 2, 3), terminal plates (5, 6) which are installed on and under the generating element and serve also as a current collector and a container, and a frame-shaped sealing material (4) which is installed on peripheral edges of the terminal plates, seals the generating element in between the both terminal plates and insulates one terminal plate from the other; the sealing material is improved. For example, the sealing material is formed into a vertical-type multi-layer structure, in which at least one layer is composed of a layer (41, 42) comprising metal and the other layer (43) is composed of an electric insulator. Thereby, a mechanical strength of the sealing material or a battery becomes large and the battery becomes hard to be bent.

Abstract: A manufacturing method for an electrode in which ultra fine particles of active material formed in gas by an evaporation method are carried in a gas flow and blown onto a surface of a substrate, so that an electrode comprising a thin film of active material is formed on the surface of the substrate. A manufacturing method for an electrode-electrolyte composite in which ultra fine particles of active material formed in gas by the evaporation method are carried in a gas flow and blown onto a surface of a film comprising a solid electrolyte, so that an electrode comprising a thin film of active material is formed on the surface of the film. The above manufacturing method for an electrode can provide an anode or a cathode comprising an ultra thin film having an uniform thickness of under 10 microns inclusive, for example.

Abstract: There is described a solid polymer electrolyte containing an ionic salt in a three-dimensional crosslinked compound of a poly(vinylalkyl ether) represented by the following general formula: ##STR1## (where R is CH.sub.3, C.sub.2 H.sub.5 or CH(CH.sub.3)(C.sub.2 H.sub.5); and n is an integer of 100-2,000). The poly(vinylalkyl ether) is preferably poly(vinylmethyl ether) and crosslinked by exposure to an ionizing radiation. The solid polymer electrolyte also contains a compound that is capable of solubilizing the ionic salt.