Abstract: A conventional battery has a problem that a large short-circuit current was generated with temperature rise due to internal short-circuit or the like, and therefore, the temperature of the battery further increases due to exothermic reaction to increase the short-circuit current. The present invention has been carried out in order to solve the above problems. The battery of the present invention is a battery wherein at least one of a positive electrode 1 and a negative electrode 2 comprises an active material layer 6 containing an active material 8 and an electronically conductive material 9 contacted to the active material 8, wherein a solid electrolytic layer 3 is interposed between the above positive electrode 1 and the negative electrode 2, and wherein the above electronically conductive material 9 comprises an electrically conductive filler and a resin so that resistance increases with temperature rise.

Abstract: There is provided a package for a non-aqueous electrolytic battery by which water invasion from outside is lowered and adhesion strength is improved over the long term, and a non-aqueous electrolytic battery having a lengthened life and high reliability. In a package for a non-aqueous electrolytic battery having a bag construction to store a battery content made by adhesion of a part of a lamination film comprising a metal layer and a resin layer, the adhesion part holds a structure capable of reacting with or absorbing an element which diffuses from the battery interior inwardly to the battery interior side.

Abstract: The object of the present invention is to obtain an electrode whose resistivity increases with temperature, and a battery using the same. Specifically, the invention consists in limiting the proportion of a conductive filler contained in electron conductive particles of an electron conductive particle layer to a range of from 55 to 70 parts by weight. A battery constituted by using the electrode has an increased discharge capacity and is capable of reducing a short-circuit current.

Abstract: Conventional batteries are disadvantageous in that a firm outer case must be used to maintain an electrical connection between electrodes, which has been an obstacle to size reduction. Those in which each electrode and a separator are joined with an adhesive resin suffer from conflict between adhesive strength and battery characteristics, particularly ion conductivity and internal resistivity. To solve these problems, it is an object of the invention to reduce resistance between electrodes, i.e., internal resistance of a battery to improve battery characteristics while securing both insulation function against electron conduction and ion conductivity between electrodes and also to maintain adhesive strength enough to firmly join the electrodes thereby to provide a light, compact and thin battery.

Abstract: Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. Further, some of electrode structures involve reduction in discharge capacity. These problems are solved by a battery in which an electron conductive material (9), being in contact with an active material (8) in an electrode, comprises a conductive filler and a resin so that the electrode may increase its resistivity with a temperature rise, and the ratio of the particle size of the electron conductive material (9) to that of the active material (8) is in a range of from 0.1 to 20.

Abstract: A battery with an active material layer 6 having an active material 8, an electronically conductive material 9 contacted to the active material 8, and an electrolytic layer 3 jointed with the active material layer 6, wherein the electronically conductive material 9 comprises an electrically conductive filler and a resin having a predetermined thermal melting temperature T1, and has a Positive Temperature Coefficient (PTC) such that resistance of the electrically conductive material increases with temperature, and wherein the active material layer 6 and the electrolytic layer 3 are laminated and are jointed together by heating the resin to a predetermined thermal treatment temperature T2.

Abstract: A method of fabricating an electrode includes pulverizing an electron conductive material containing a conductive filler and a resin, dispersing the ground electron conductive material to make a paste, drying the paste to form an electron conductive material layer, dispersing an active material to prepare an active material paste, and applying the active material paste on the electron conductive material layer and pressing at a prescribed temperature under a prescribed pressure.

Abstract: The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a electric power generating element, a baglike container, leads, and a resin for fixing the leads and an inner surface of the baglike container together.

Abstract: The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a flat electric power generating element, a baglike container, leads, and a resin for fixing surfaces of a thin portion of the electric power generating element and an inner surface of the baglike container together.

Abstract: A battery body, which is composed of a laminated body obtained by laminating a cathode and an anode via a separator or a wound body obtained by winding them in a laminated structure and a plurality of leads connected to the cathode and the anode, is contained in a flexible package, and after an electrolyte solution is injected thereinto, an opening of the package is sealed at pressure which is lower than atmospheric pressure and is reduced to not less than vapor pressure of the electrolyte solution so that a thin battery is fabricated. A rise in pressure in the battery due to generation of gas in the battery and volume expansion of the gas can be restrained when the battery is maintained at high temperature.

Abstract: A battery package including laminate sheets adhered each other along their peripheral to form a container portion for receiving an electrode assembly and a seal portion. The seal portion surrounds the container portion and protrudes outwardly from side faces of the container portion. The seal portion has enough width to maintain the container portion free from moisture for long periods of time. The laminate sheets include a heat-adhesive polymer layer and a metal layer which stops moisture and provides a shape-maintaining ability to the laminar sheets. The seal portion is folded or curled to reduce a projection area of the battery package.

Abstract: An adhesive for batteries. The adhesive has improved wetting properties, improved adhesive strength and prevents deterioration of battery performance. Secondary batteries can be obtained having an arbitrary shape such as a thin shape with high reliability and high charge and discharge efficiency. The adhesive includes a thermoplastic resin, a solvent capable of dissolving the resin and a neutral and aprotic surfactant. The surfactant includes a polysiloxene skeleton. The adhesive is used in batteries for adhering an active material layer joined to a current collector to a separator.

Abstract: A lithium ion secondary battery having an electrode body including a positive electrode made of a positive electrode active material layer joined to a current collector, a negative electrode made of a negative electrode active material layer joined to a current collector, a separator which is disposed between the positive electrode and the negative electrode and retains an electrolytic solution containing lithium ions, and a porous adhesive resin layer which retains the electrolytic solution and joins the separator to at least one of the positive electrode active material layer and to the negative electrode active material layer, the electrode body being sealed into a packaging bag, wherein an adhesive resin film capable of absorbing the electrolytic solution and gelling adheres the electrode body to the packaging bag.

Abstract: Conventional batteries have a problem that, in case the battery temperature should rise to or above a temperature at which the separator melts or flows due to an internal short-circuit, etc., a large short-circuit current develops to generate heat at the part where the separator flows. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. The invention has been completed to solve the abovementioned problem. It is an object of the invention to provide an electrode which increases its resistivity with temperature, a method of fabricating the electrode, and a battery using the electrode. Specifically, the electrode of the invention contains a resin which is in contact with an active material or a conducting agent and expands in volume with a rise in temperature.

Abstract: Conventional batteries have a problem that, in case the battery temperature should rise due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. The battery of the invention, which has been completed to solve the problem, is a battery in which a positive electrode (1) has an active material containing nickel, at least one of the positive electrode (1) and a negative electrode (2) has an active material layer (6) comprising an active material (8) and an electron conductive material (9) in contact with the active material (8), and an electrolyte layer (3) is interposed between the positive electrode (1) and the negative electrode (2), wherein the electron conductive material (9) contains a conductive filler and a resin so that the electrode is designed to increase its resistivity with a temperature rise.

Abstract: Conventional batteries have the following problem. When the battery temperature rises above a temperature at which the separator melts and flows due to an internal short-circuit, etc., a large short-circuit current generates between the positive and negative electrodes at portions where the separator flows to cause heat generation to further raise the battery temperature. As a result, the short-circuit current further increases.

Abstract: Conventional batteries are disadvantageous in that a firm outer case must be used to maintain an electrical connection between electrodes, which has been an obstacle to size reduction. Those in which each electrode and a separator are joined with an adhesive resin suffer from conflict between adhesive strength and battery characteristics. To solve these problems, it is an object of the invention to provide a battery which requires no outer case so as to realize reduction in thickness and weight and yet exhibits excellence in both battery characteristics and adhesive strength.

Abstract: An electrode for a battery which increases resistivity with increasing temperature. The electrode has an electron conductive material containing a conductive filler and a resin so as to increase its resistivity with increasing temperature. This solves the problem of the prior art where the battery temperature rises above a temperature at which the separator melts and flows due to an internal short circuit, with a large short circuit current being generated between the positive and negative electrodes at portions where the separator flows to cause heat generation to further increase the battery temperature. As a result, the short circuit current increases further.

Abstract: Conventional batteries are disadvantageous in that a firm outer case must be used to maintain an electrical connection between electrodes, which has been an obstacle to size reduction. Those in which each electrode and a separator are joined with an adhesive resin suffer from conflict between adhesive strength and battery characteristics. To solve these problems, it is an object of the invention to provide a battery which requires no outer case so as to realize reduction in thickness and weight and yet exhibits excellence in both battery characteristics and adhesive strength. A positive electrode, a negative electrode, and a separator are joined via an adhesive resin layer having at least one adhesive resin layer containing a filler. The adhesive resin layer has pores, which are filled with an electrolytic solution to exhibit sufficient ion conductivity thereby to improve battery characteristics and to retain adhesive strength.

Abstract: Conventional batteries are disadvantageous in that a firm outer case must be used to maintain an electrical connection between electrodes, which has been an obstacle to size reduction. Those in which each electrode and a separator are joined with an adhesive resin suffer from conflict between adhesive strength and battery characteristics, particularly ion conductivity and internal resistivity. To solve these problems, it is an object of the invention to reduce resistance between electrodes, i.e., internal resistance of a battery to improve battery characteristics while securing both insulation function against electron conduction and ion conductivity between electrodes and also to maintain adhesive strength enough to firmly join the electrodes thereby to provide a light, compact and thin battery.