Abstract: In case of a conventional battery having a laminated sheet material as a battery case (1) for storing a battery body, the metal foil on the laminated sheet does not contact to either a positive electrode or a negative electrode and electric potential is unstable. Therefore, there was a problem that it was impossible to obtain electrical shielding effect.

Abstract: An object is to provide with good productivity a practical lithium ion secondary battery which secures lightness in weight and safety without using a firm battery case and has reduced internal resistivity. The lithium ion secondary battery comprises a tabular roll type laminated electrode body in which a band-formed positive electrode (3) comprising a positive electrode active material layer (7) and a positive electrode current collector (6) alternates with a band-formed negative electrode (5) comprising a negative electrode active material layer (9) and a negative electrode current collector (10), having therebetween a band-formed rolled separator (4) which holds a lithium ion-containing electrolytic solution, the positive electrode (3) or the negative electrode (5) being adhered with two separators (4) by an adhesive layer (11).

Abstract: In a conventional battery containing metal lithium in the negative electrode, there is a problem that 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.

Abstract: As to the batteries containing an organic low molecular compound in the space between the positive and negative electrodes, there has been a risk of unusual conditions such as ignition because the organic low molecular compound in liquid was released from the above space to the outside, when there was heating of the battery and the like.

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: Conventional separators had a function that their melting made minute holes inside the separator smaller, leading to cut off of ion conductivity in temperature increase due to unusual conditions such as short circuit. However, there was a problem that, at a temperature higher than a certain degree, not only the minute holes were closed but also the separator itself was melted to cause deformation of the separator such as shrink and generation of holes due to melting and insulation was broken.

Abstract: A conventional battery has a problem that a large short-circuit current is generated with temperature rise due to internal short-circuit, and therefore, the temperature of the battery further increases due to heat and the short-circuit current is increased. Also, there is a problem in safety that the sealed part can be easily opened with temperature rise in case of using the aluminum laminated bag as the outer body for sealing the battery body.

Abstract: A conventional battery has a problem that since a device having PTC function was placed outside the battery or outside the electrode of the battery as a safety device in case of temperature rise due to short-circuit current generated by external short-circuit or the like, a large short-circuit current was generated with temperature rise due to internal short-circuit. And therefore, a temperature of the battery further increases due to exothermic reaction to increase the short-circuit current. Also, there is a problem that structure of the battery become complicated and volume energy density is lowered.

Abstract: A practical lithium ion secondary battery. The battery is light in weight and is safe without using a firm battery case. It also has reduced internal resistivity. The battery includes a tabular roll-type laminated electrode body in which a band-formed positive electrode alternates with a band-formed negative electrode, with a band-formed rolled separator being placed therebetween. The positive electrode includes a positive electrode active material layer and a positive electrode current collector. The negative electrode includes a negative electrode active material layer and a negative electrode current collector. The separator holds a lithium ion-containing electrolytic solution. The positive electrode or the negative electrode is adhered with two separators by an adhesive layer.

Abstract: A molten carbonate fuel battery comprises a stack of molten carbonate fuel cells. A half-cell anode and a half-cell cathode are disposed at the positive and negative ends which are defined by the end cathode and end anode, respectively, of the stack, with respective separators disposed therebetween. The half-cell anode includes an anode electrode and an anode reaction gas flow path, but does not include a matrix, and the half-cell cathode includes a cathode electrode and a cathode reaction gas flow path, but does not include a matrix.

Abstract: A fuel cell device individually has an electrolyte layer which is connected, in an ion conductive manner, to the electrolyte layer of a fuel cell and a half cell formed by a single electrode and a gas chamber.An electrochemical circuit for the purpose of transferring electrolyte is provided by using the single electrode of the half cell, the electrolyte layer of the corresponding fuel cell and the half cell, and either of an oxidant gas side electrode or a fuel gas side electrode. With this circuit, quick and quantitative replenishing electrolyte can be performed.

Abstract: A gas manifold for a fuel cell provided on the side of a fuel cell stack comprises a casing, a corrosion protection layer provided on contact areas between the casing and side of the fuel cell stack and portions adjacent thereto for protecting the casing from corrosion, an insulating layer provided on the outer surface of the corrosion protection layer for protecting the electrical insulation, and a thermal stress relief layer provided between the insulating layer and the corrosion protection layer for relieving the thermal stress therebetween. By the use of the gas manifold, electrical insulation between single fuel cells through the gas manifold and between the fuel cell stack and the gas manifold can be maintained for long periods of time, thus enabling the stable operation of the fuel cell for long periods of time.

Abstract: A fused carbonate-type fuel cell is disclosed in which a reforming catalyst body comprising a catalyst supported on a carrier and secured or held in a porous body is arranged in a fuel gas passage. In this fuel cell, a reaction gas is uniformly contacted with the reforming catalyst, propagation of wetting by the electrolyte is prevented, and decrease in activity of the reforming catalyst can be suppressed to a very low level. Furthermore, this catalyst body can be easily handled.