Abstract: A secondary battery includes: a battery module including an electrolyte layer in a form of a plate, a positive electrode disposed on a first main surface of the electrolyte layer and containing a positive electrode active material, and a negative electrode disposed on a second main surface of the electrolyte layer and containing a negative electrode active material; and a conductive layer provided between battery modules, the secondary battery having more than one battery module and more than one conductive layer stacked in layers, wherein the positive electrode active material and the negative electrode active material are set in concentration in accordance with a temperature distribution in the secondary battery.

Abstract: In the present invention, there is provided a battery pack wherein a lock recess for engagement with a lock protrusion formed to protrude from the battery mounting portion side and a detection groove for engagement with a detection protrusion formed to protrude from the battery mounting portion side so as to detect the kind of the battery pack are formed in one or each of mutually opposite side surfaces adjacent to a mount surface for mounting to the battery mounting portion, according to the kind of the battery pack, and the detection groove is formed to be deeper than the lock recess in a direction in the plane of the mount surface.

Abstract: A battery unit includes a battery assembly. The battery assembly includes a glass ceramic and a positive-side active material constituting a first composite layer, a glass ceramic and a negative-side active material constituting a second composite layer, and a solid-state electrolyte layer located between the first composite layer and the second composite layer. The battery unit also includes a case in which the battery unit is stored, a load sensor provided on the case, and a clamp member clamping the case and the load sensor.

Abstract: A battery-cell structure of a battery is constructed to have a resinous spacer 5 with a frame shape surrounding thick central portions between a battery cell 3 arranged at an upper side and a battery cell 4 arranged at a lower side, and ventilation portions 62 and 64 that are provided in the resinous lower case 6 to communicate the exterior with depressed portions 61 of the resinous lower case 6 and have an up- and down symmetrical shape and size. It is constructed so that the battery cell 3 arranged at the upper side and the battery cell 4 arranged at the lower side are put in a vertical direction between the resinous lower case 6, the spacer 5 and the upper case 2.

Abstract: The present invention discloses a fuel cell system that blocks the oxidant gas flow passage. This fuel cell system includes a fuel cell stack, the oxidant gas supply passage, the oxidant gas exhaust passage, the first valve and second valve of normally open type, the first motor that operates open and close operations of the first valve, the second motor that operates open and close operations of the second valve, and the ECU that controls the first motor and the second motor. This ECU controls the first valve and the second valve to be in the open state during the power generation in the fuel cell stack, thereby to open the cathode flow passage, and controls the first valve and the second valve to be in the close state after the power generation in the fuel cell stack is stopped, thereby to block the cathode flow passage.

Abstract: A fuel cell stack includes a casing containing a plurality of fuel cell units. A ridge is formed integrally at the center in the width direction of a side panel of the casing. The ridge contacts a load receiver to support the load of the fuel cell units. A plurality of separate reinforcement plates bridging a recess of the back surface of the ridge are provided on the side panel. The reinforcement plates are fixed to the side panel at welding points by spot welding.

Abstract: Disclosed herein is a battery pack including: a plurality of cylindrical battery cells; and an electrode tab for electrically connecting terminals of the battery cells arranged in a pattern; wherein the electrode tab is formed with a position matching hole for position matching to the terminal of the battery cell, at a fixation part for fixation to the terminal of the battery cell.

Abstract: A method for producing a prismatic secondary cell housing a flat electrode assembly includes disposing a first current-collecting member onto a first to-be-welded portion at a flat portion of an edge of the electrode assembly where a core-body exposed portion of the first electrode protrudes. A first receiving member is disposed onto a plane opposing the flat portion. The first current-collecting member, the core-body exposed portion, and the first receiving member are resistive-welded with the core-body exposed portion between the other members. A second current-collecting member is disposed onto a second to-be-welded portion at a position of the flat portion distanced from the first to-be-welded portion while avoiding contact between the collecting members. A conductive connecting member is placed between the collecting members or between the receiving members. The conductive connecting member and its abutting members are welded. One of the members is electrificably connected to an external output terminal.

Abstract: There is provided manufacturing method of battery comprising adhering process (S1) to adhere fluorescent material (leakage indicator including fluorescein) which emits fluorescence in response to predetermined light (ultraviolet radiation) irradiated under condition that electrolyte exists, to at least one portion of a surface on a battery case, and leakage detecting process (S2 through S9) to detect presence/absence of electrolyte leakage with fluorescence which an adhered portion emits in response to the predetermined light (ultraviolet radiation) irradiated on at least the adhered portion which has adhesion of the fluorescent material (leakage indicator including fluorescein), out of the surface on the battery case.

Abstract: A laminated porous film having at least two porous layers layered one upon another. One porous layer consists of a resin layer containing a polypropylene resin. The other layer is a heat-resistant layer consisting of a resin composition whose crystal fusion peak temperature is higher than that of the resin composition of the layer containing the polypropylene resin. The laminated porous film has a ? activity and/or a ? crystal generation power.

Abstract: A battery powered device comprising a housing having a battery compartment apparatus disposed therein, with the battery compartment apparatus being configured to accept at least one battery. The battery compartment apparatus comprises a battery carrier and a locking hold down mechanism. The carrier is slidably mounted in the housing. The locking hold down mechanism responds to insertion and withdrawal of the carrier into and out of the housing by locking the locking hold down mechanism against the battery, thereby preventing undesired displacement of the battery within the housing.

Abstract: The invention provides a battery module, which forms an item unit for construction of a battery assembly, comprising a cell unit having a plurality of cells, and a housing and a cover to store the cell unit. The battery module further comprises a shaft member inserted into a through-hole provided in the cell unit and a through-hole provided in the housing and a through-hole provided in the cover, wherein the shaft member comprises a length that allows protrusion from each of the housing and the cover. Furthermore, during construction of the battery module, the shaft member doubles as a jig for insertion of the cover, the cell unit, and the housing in said order for each of the modules within the battery assembly.

Abstract: The invention concerns a device for catalytic recombination of gases for alkaline batteries with shortened zinc anode. The invention concerns a device for catalytic recombination of gases formed when charging a zinc anode alkaline battery, characterized in that it consists of a catalytic mass in contact with a crosslinked cellular metal foam serving as catalyst support and heat dissipating structure, said catalytic mass consisting of a mixture of carbon black including metal of platinum metals, and of a hydrophobic binder, the whole assembly being heat-treated to cause the hydrophobic binder of said catalytic mass to be sintered. Said device is advantageously connected to one of the terminals of the battery or to any other metal part constituting part of the cover of the battery case, so as to promote discharge of the calories produced.

Abstract: A battery cell includes a power generating element, an electrode connected to the power generating element and configured to electrically connect the power generating element to outside, and an exterior member configured to cover the power generating element. The exterior member includes an insulating layer and a conductive layer, and the conductive layer includes a connection section electrically connected to the outs.

Abstract: A fuel cell stack including a first end plate, a second end plate, at least a fuel cell, a first current collector and a second current collector is provided. The first end plate includes a first end plate structure component, which is combined with a first end plate manifold component. The second end plate includes a second end plate structure component, which is combined with a second end plate manifold component. The first and the second end plate manifold components are placed between the first and the second end plate structure components, while the fuel cell is disposed between the first and the second end plate manifold components. The first current collector is disposed between the first end plate manifold component and the fuel cell. The second current collector is disposed between the second end plate manifold component and the fuel cell.

Abstract: A rechargeable battery including an electrode assembly including first and second electrode plates, each of which includes an electrode uncoated portion and a separator interposed between the first and second electrode plates, and at least one current collector plate, each current collector plate contacting one of the electrode uncoated portions of the first and second electrode plates, wherein each current collector plate includes a protrusion protruding toward the electrode assembly and having a contact portion contacting one of the electrode uncoated portions, and a slit in the contact portion disposed at a predetermined angle with respect to the direction of the electrode assembly.

Abstract: A packaging structure of a low-pressure molded fuel cell comprises a hot melt adhesive layer, which is formed through a low-pressure molding process using a hot melt adhesive that has specific material properties and will become molten when being heated. The molten hot melt adhesive is injected into the cell via injection holes formed on a housing or a mounting element to flow through a C-sectioned flow channel, so as to tightly enclose and bond to edges of the air cathode and separator for the cell. After the hot melt adhesive is solidified, a chemical-resistant hot melt adhesive layer with good sealing and enclosing ability as well as high adhesion strength and elasticity, being bubble removed at controlled pressure and the hot melt adhesive material is formed to firmly bond to the cell components and tightly seal the cell, so as to effectively prevent electrolyte in the cell from leaking.

Abstract: A fuel cell includes an anode including an anode catalyst, a cathode, a channel that is contiguous with the anode, and a liquid electrolyte in the channel. The cathode includes a gas diffusion electrode, a cathode catalyst on the gas diffusion electrode, and a hydrogel on the cathode catalyst. The hydrogel is between the anode and the cathode, and includes an aqueous liquid and a polymer. The polymer has an acid capacity less than 0.8 meq/g and/or has no sulfonic acid groups covalently bound to the polymer. A method of generating electricity includes flowing a liquid electrolyte through the channel, oxidizing a fuel at the anode, and reducing a gaseous oxidant at the cathode.

Abstract: A solid polymer fuel cell that utilizes liquid fuel such as methanol should prevent generated water from residing in a ventilation port close to an anode, to thereby suppress degradation of a MEA. The fuel cell includes an anode, an anode-side collecting electrode, a sealing material located along a perimeter of a solid polymer electrolytic membrane and interleaved between the electrolytic membrane and the anode-side collecting electrode, and a discharging device that discharges a product generated through electric reaction on the anode. The sealing material is provided in a frame-shape around the anode. The discharging device is a ventilation port formed on the sealing material, and a water repellent material is provided at least one of inside the ventilation port and between the ventilation port and the anode.

Abstract: A secondary battery comprises a flat wound electrode body, a flat-type hard case housing the wound electrode body, and a film sandwiched between them. The film is formed with thick portions each of which is located at a boundary region between a flat portion and a curved portion of the surface of the wound electrode body. When a plurality of the secondary batteries are bound, therefore, load is applied widely on almost the entire wound electrode body, thereby enabling exertion of sufficient generation capability. Thus, a secondary battery with improved battery performance is provided in which load is sufficiently applied on an electrode body. The secondary battery can also be used as a battery assembly, a battery to be mounted on a vehicle, and a battery to be mounted on a battery mounting device.