Abstract: Provided is an electric storage device that can ensure seal in a peripheral area of a portion in a defining wall of a case through which a rivet passes even when a rivet is inserted through the defining wall of the case and the rivet is caulked. The electric storage device includes: an electrode assembly; a case that houses the electrode assembly, the case including a defining wall; and a rivet, wherein a peripheral area of a portion in the defining wall through which the rivet passes has a higher hardness than the remaining area.

Abstract: Li-Ion/Polysulfide flow battery systems are provided to achieve high energy density and long service life. The system is configured to minimize corrosion of the lithium electrode by providing an electrochemical reactor comprising a first and a second electrode configured in spaced apart relation defining an inter-electrode channel through which the sulfur electrolyte is caused to flow.

Abstract: A secondary battery with filling function has a corresponding secondary battery and a filling device. The corresponding secondary battery has a housing defining an accommodation chamber for accommodating a power generation portion, an opening portion formed in the housing, a stopper body closing the opening portion, and a coupling portion formed around the opening portion. The filling device has a cap body forming a sealed space around the opening portion by covering the opening portion and the stopper body closing the opening portion as a result of coupling to the coupling portion, an attachment and removal portion for attaching and removing the stopper body to/from the opening portion in the sealed space, and a filling portion for filling the inside of the housing with a non-aqueous electrolyte through the opened opening portion.

Abstract: Provided are a thickening agent for an alkaline battery, which can satisfactorily retain long-term discharge characteristics (discharge quantity and discharge time) and provide excellent impact resistance, and an alkaline battery used therewith. In the invention, the thickening agent for an alkaline battery comprises (A) a crosslinked polymer comprising, as essential constituent units, (a1) a water-soluble vinyl monomer and/or (a2) a vinyl monomer being converted into (a1) by hydrolysis, (b) a hydrolyzable crosslinking agent undergoing alkaline hydrolysis, and (c) a non-hydrolyzable crosslinking agent not undergoing alkaline hydrolysis, wherein (b) and (c) each has a content of 0.05% to 1% by weight based on the weight of (A), and satisfies Requirements (1) and (2) described below: Requirement (1): the weight ratio (b)/(c) between (b) and (c) is from 1.0 to 5.0; Requirement (2): a specific solution (S1) has a viscosity of 25 to 100 Pa·s at 25° C.

Abstract: An energy storage system comprising at least one energy storage module adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure, at least one battery array located within the enclosure, and an energy storage controller module located within the enclosure and electrically connected to the battery array. A high voltage junction box is attached to a first end of the enclosure and having a plurality of high voltage connection terminals connected by a plug-in bussed electrical center configured to reduce the possibility of unintentional grounding or shorting, and decreases the safety risk to a technician during servicing. At least one of the high voltage connection terminals is configured to receive a high voltage conductor connected between the energy storage module and an inverter of the hybrid vehicle.

Abstract: The moisture state of a fuel cell is determined without causing any variation in the supply state of the reactant gas to be supplied to the fuel cell. An output current control section temporarily performs a current sweep while maintaining the amount of oxidant gas to be supplied to the fuel cell. A resistance component calculation section calculates the resistance component in the fuel cell by using an output current value and an output voltage value of the fuel cell being that of when the current sweep is temporarily performed. A moisture content calculation section calculates the moisture content in the fuel cell by using the resistance component. A moisture content determination section determines whether or not the moisture content is equal to or lower than a dry state threshold value. A moisture content increasing processing section performs a moisture content increasing process when the moisture content is equal to or lower than the dry state threshold value.

Abstract: Composition in the form of a solution and/or dispersion, comprising: at least one polyazole with an intrinsic viscosity, measured in at least 96% by weight sulfuric acid, in the range from 3.0 to 8.0 g/dl, and orthophosphoric acid (H3PO4) and/or polyphosphoric acid, wherein the polyazole content, based on the total weight of the composition, is in the range from 0.5% by weight to 30.0% by weight, the H3PO4 and/or polyphosphoric acid content, based on the total weight of the composition, is in the range from 30.0% by weight to 99.5% by weight, the H3PO4 and/or polyphosphoric acid concentration, calculated as P2O5 (by acidimetric means), based on the total amount of H3PO4 and/or polyphosphoric acid and/or water, is in the range from 70.5% to 75.45%. Additionally protected are particularly advantageous processes for preparation and for use of the inventive composition.

Abstract: A battery including a battery case, an electrode assembly in the battery case, the electrode assembly including a plurality of windings that are wound about a winding axis, the winding axis being oriented parallel to a bottom surface of the battery case, and a deformable member between the electrode assembly and the bottom surface of the battery case, the deformable member being pressed between the electrode assembly and the bottom surface of the battery case.

Abstract: A negative electrode material is provided for lithium ion batteries offering a high capacity and a long cycle life. It is an alloy material consisting essentially of Si, Al, M1, and M2 wherein M1 is a transition metal, and M2 is a metal element of Groups 4 and 5, and having an Si—Al-M1-M2 alloy phase constituting fine crystal grains and an Si phase precipitating along crystal grain boundaries to form a network.

Abstract: A liquid electrolyte fuel cell comprises means to define an electrolyte chamber, and electrodes on opposite sides of the electrolyte chamber. The electrode comprises an electrically conductive sheet (10) through which are defined a multiplicity of through-pores or holes (14). These may be formed by laser drilling through the sheet. The electrode would normally also include a layer (16) of catalytic material. The margin (15) of the sheet is not perforated or porous, to simplify sealing.

Abstract: The present invention provides an apparatus and method for generating a virtual sound source for monitoring the operating state of a fuel cell stack, which monitors in real time the deviation and deterioration of a plurality of cells in a fuel cell stack during operation, and expresses the results as a chord or different sounds, thus allowing a driver to easily recognize the operating state of the fuel cell stack.

Abstract: A composite anode active material, a method of preparing the composite anode active material, and a lithium battery including the lithium battery. According to the method of preparing the composite anode active material, carbon nanotubes are formed on a Si particle without a separate operation of applying a catalyst. Furthermore, high adherence is provided between the Si particle and carbon nanotubes, and therefore the composite anode active material is used as an anode material of the lithium battery.

Abstract: An electrode material containing an electrode active material, and a carbonaceous coating film which covers the electrode active material and contains sulfur; and an electrode material including a secondary particle including a plurality of primary particles as the electrode active material, wherein the primary particles are covered with a carbonaceous coating film so that the carbonaceous coating film is interposed between the primary particles and the carbonaceous coating film contains sulfur.

Abstract: A battery pack is described. In one aspect it can securely connect a connecting tab extending from a protective circuit board and a sensing tab drawn out from a sensing terminal of each battery cell using a connection hook extending from a case. According to some embodiments, the battery pack may include a plurality of battery cells connected in series with respect to at least one sensing terminal arranged from a first large current terminal to a second large current terminal, a sensing terminal circuit including a sensing tab having a first throughhole formed inward and drawn out from the sensing terminal. a protective circuit module including a connecting tab having a second throughhole corresponding to the first throughhole formed inward and overlapping and electrically connected to the sensing tab. and a battery case for receiving the plurality of battery cells, the sensing terminal circuit and the protective circuit module.

Abstract: A method for producing a coated nickel hydroxide powder suitable as a cathode active material for alkaline secondary battery includes the steps of: dispersing a nickel hydroxide powder in water to prepare a suspension, an aqueous alkali solution to the suspension with stirring to keep a pH of the suspension at 8 or higher as measured at 25° C., and supplying an aqueous cobalt salt solution to the suspension to coat a surface of each particles of the nickel hydroxide powder with cobalt hydroxide crystallized out by neutralization.

Abstract: An electrochemical device includes a container, a storage element, and a structure. The container includes a container main body including a first inner surface, and a lid including a second inner surface opposed to the first inner surface. The lid is bonded to the container main body. The container contains an electrolyte. The storage element includes first and second electrode layers respectively adhered to the first and second inner surfaces and a separator provided between the first and second electrode layers to retain the electrolyte, and is sandwiched between the first and second inner surfaces. The structure is provided in at least either one of the first and second inner surfaces. The structure compresses and deforms the storage element to form, in an area of the separator sandwiched between the first and second electrode layers, a thin wall portion thinner than in a peripheral area around the area.

Abstract: A battery electrolyte solution contains from 0.01 to 80% by weight of an aromatic phosphorus compound. The aromatic phosphorus compound provides increased thermal stability for the electrolyte, helping to reduce thermal degradation, thermal runaway reactions and the possibility of burning. The aromatic phosphorus compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance.

Abstract: A battery module including a plurality of battery cells arranged in a direction, and a plurality of barriers, each arranged between battery cells of the plurality of battery cells and including a body unit having at least one opening and facing a face of a battery cell of the battery cells, at least one side unit connected to at least one end of the body unit such that at least a portion of the at least one side unit contacts a side of the battery cell, and at least one fixing unit on the side unit and configured to connect the barrier to an adjacent barrier of the plurality of barriers.

Abstract: Embodiments of the present invention generally relate to methods and apparatus for forming an energy storage device. More particularly, embodiments described herein relate to methods of forming electric batteries and electrochemical capacitors. In one embodiment a method of forming a high surface area electrode for use in an energy storage device is provided. The method comprises forming an amorphous silicon layer on a current collector having a conductive surface, immersing the amorphous silicon layer in an electrolytic solution to form a series of interconnected pores in the amorphous silicon layer, and forming carbon nanotubes within the series of interconnected pores of the amorphous silicon layer.

Abstract: A battery (100) includes an electrode body (80) having a positive electrode and a negative electrode and also includes an exterior case (50) formed in a box-like shape having an inner space corresponding to the electrode body (80). An insulation film (10) is provided between the electrode body (80) and the exterior case (50) to isolate them from each other. The insulation film (10) has a bag-like shape surrounding the electrode body (80) and is placed so as not to come into contact with corners (58) of the inner space.