Abstract: This application provides a top cover of a power battery and a power battery, the top cover includes a top cover sheet, a first electrode unit and a second electrode unit, the first electrode unit includes a turning sheet, an insulating piece and a current cutting-off structure, the current cutting-off structure is fixed in radial projection range of an assembling hole and is electrically connected with the top cover sheet, the turning sheet is fixed at an underneath of the top cover sheet through the insulating piece, the turning sheet is electrically connected with the top cover sheet merely through the current cutting-off structure, and the turning sheet is capable of turning and breaking the current cutting-off structure when an internal pressure of the power battery exceeds a reference pressure, so as to cut off an electrical connection of the current cutting-off structure with the top cover sheet.

Abstract: A method of protecting a battery pack in which first and second battery cells, each having a positive electrode, a negative electrode, and an edge are aligned so that the positive electrodes of the first and second battery cells are adjacent. An electrically conductive busbar configured to be positioned on an edge of the first and second battery cells electrically connects the positive electrode of the first battery cell to a first protection device, the positive electrode of the second battery cell to a second protection device, the first protection device to the second protection device, and the negative electrode of the first battery cell to the negative electrode of the second battery cell. Also provided is a battery pack protection assembly.

Abstract: A gel electrolyte layer is provided between a positive electrode and a second electrode. The gel electrolyte layer is a layer containing particles, a resin material, and a polymer compound for retaining the resin material, and having a heat capacity per unit area of 0.0001 J/Kcm2 or more and a heat capacity per unit volume of 3.0 J/Kcm3 or less.

Abstract: To provide a highly reliable power storage device, to improve the security of a power storage device, and to suppress deterioration of a power storage device, a power storage device includes, inside an exterior material, a positive electrode, a negative electrode facing the positive electrode, an electrolyte solution between the positive electrode and the negative electrode, and an adsorbent. A separation body which is impermeable to the electrolyte solution and permeable to a gas is provided between the electrolyte solution and the adsorbent.

Abstract: A current interruption device includes: a deforming plate configured to deform when the internal pressure of the casing rises above the predetermined level; a conducting plate which configures the current path; and a contact plate. The conducting plate includes a first contact portion configured to contact the contact plate. The contact plate includes a second contact portion configured to contact the first contact portion. The deforming plate includes a pressure receiving portion configured to receive the internal pressure of the casing and a contacting portion configured to contact the first contact portion. The second contact portion is configured to be separated from the conducting plate by deformation causing the contacting portion to move toward the contact plate. The deforming plate is insulated from the conducting plate and the contact plate. The conducting plate is disposed to be interleaved between the deforming plate and the contact plate.

Abstract: A battery module having a first battery cell; a frame member having first and second sides and first, second, third and fourth peripheral walls; and first and second thermally conductive plate members is provided. A plurality of flow channels are formed by the first and second thermally conductive plates. The third peripheral wall has a first outlet that receives the first electrical terminal of the first battery cell therethrough, such that if the first battery cell outputs gases therefrom the first outlet routes the gases from the first battery cell to outside of the frame member such that the gases are isolated from the air flowing through the plurality of flow channels.

Abstract: An embodiment of the present disclosure provides a structure that contributes to increasing the capacity density. A secondary cell according to an embodiment of the present disclosure includes a plurality of periodic unit structures that are arranged on a first surface. Each of those periodic unit structures includes a positive electrode layer and a negative electrode layer, each of which projects away from the first surface, and a solid electrolyte interposed between the positive electrode and negative electrode layers.

Abstract: A battery capable of improving ionic conduction is provided. The battery includes a cathode, an anode, and a solid electrolyte layer. One or more of the cathode, the anode, and the solid electrolyte layer includes a solid electrolyte binder.

Abstract: A current interruption device includes a first conductive member, a second conductive member, a first deformable member, and a second deformable member. The first conductive member is fixed to a casing. The second conductive member is disposed at a position opposed to the first conductive member. The first deformable member is in contact with the second conductive member when pressure in the casing is equal to or less than a predetermined value. Further, the first deformable member is brought out of contact with the second conductive member when the pressure in the casing exceeds the predetermined value. A plastic deformation portion deformed in a manner of projecting toward the second conductive member is provided on a center portion of the second deformable member.

Abstract: A current interruption device includes a deforming plate, a contact plate and a conducting plate which configure a current path. The deforming plate includes one surface on an opposite side from the contact plate facing a first space, a pressure of which is retained to a same pressure as the internal pressure of the casing and the other surface opposed to the contact plate facing a second space, a pressure of which is retained to a same pressure as an external pressure of the casing. When the internal pressure rises above the predetermined level, the second contact portion is separated from the conducting plate by deformation of the deforming plate toward the contacting plate.

Abstract: The invention provides sulfuric acid efficiency electrolytes including a surfactant, preferably an amphoteric or a non-ionic surfactant, and/or phosphoric acid, the sulfuric acid efficiency electrolyte preferably further including at least one of a chelating agent and a crystal growth regulator, and optionally, a filler. The invention further provides sulfuric acid electrolytes including a filler, at least one chelating agent, and at least one water-soluble sulfate salt, wherein the chelating agent comprises an alkali metallated chelating agent and the water-soluble sulfate salt comprises the corresponding cation to the cation present in the alkali metallated chelating agent. The invention further provides lead sulfuric acid batteries including a positive electrode, negative electrode, and the efficiency electrolyte of the invention disposed therebetween.

Abstract: To provide a highly reliable power storage device, to improve the security of a power storage device, and to suppress deterioration of a power storage device, a power storage device includes, inside an exterior material, a positive electrode, a negative electrode facing the positive electrode, an electrolyte solution between the positive electrode and the negative electrode, and an adsorbent. A separation body which is impermeable to the electrolyte solution and permeable to a gas is provided between the electrolyte solution and the adsorbent.

Abstract: A disposable self-powered biomedical sensor comprises a printed wet electrode on a substrate sheet. The wet electrode is provided with an electrolyte element to enhance the electrical contact with a surface to be measured. Moreover, a printed battery encapsulated in a hermetically sealed compartment is provided on the substrate sheet. The disposable self-powered sensor can be stored within an enclosure or a package which provides a proper atmosphere to prevent the drying of the electrolyte and prolong the shelf life of the sensors.

Abstract: A rechargeable battery including an electrode assembly; a case accommodating the electrode assembly; and a cap assembly coupled with an opening of the case with a gasket between the cap assembly and the case, wherein the cap assembly includes a vent plate that is electrically connected to a cap plate; a middle plate that is separated from the vent plate, that includes a through-hole that is penetrated by a vent protruding from the vent plate, and that is electrically connected to the second electrode; an insulator interposed between the vent plate and the middle plate; and a sub-plate electrically connecting the vent with the middle plate, wherein at least one of the vent plate or the middle plate includes a protrusion and a groove facing the insulator, the protrusion being coupled with a complementary groove in the insulator and the groove being coupled with a complementary protrusion in the insulator.

Abstract: A battery case provided with a safety valve (4) in which a breakage groove (45) is used, wherein in order to stabilize the operation pressure, a lid (2) of the battery case has formed thereon: a thin plate portion (30) obtained by thinning a plate part (3); and a first recessed part (40) comprising a curved part (44) in which the thin plate portion (30) is indented inward, with respect to the case, in a curved shape. The breakage groove (45) for the safety valve (4) is formed at the bottom part (440) of the curved part (44). A first connecting portion (46) and a second connecting portion (47) of the plate part (3), which connect to the curved part (44) on both sides flanking the curved part (44), are at positions protruding toward the outside of the case from the plate part (3).

Abstract: An electrochemical cell includes: a cell can; electrolyte and an active-material roll in the cell can; and a cap that closes at least one opening of the cell can, the cap comprising: a substantially flat member that covers the opening, the substantially flat member having a separation portion defined therein; and a diaphragm that covers the separation portion on an inside of the substantially flat member.

Abstract: A secondary battery includes an electrode assembly, a case and a safety member. The electrode assembly has a first electrode plate, a second electrode plate and a separator interposed between the first and second electrode plates. The case accommodates the electrode assembly, and has an opened top. The safety member is inserted into an upper inside portion of the case, and seals the case. In the secondary battery, the safety member comprises an outer member contacting an inner surface of the case and having a center passing therethrough, an inner member spaced apart from the outer member at a predetermined interval and positioned at the center of the outer member, and a connection member connecting the outer and inner members. Accordingly, it is possible to increase the capacity of the battery.

Abstract: A safety device includes a discharge device for discharging an electric energy store in response to a deformation of the energy store, that is impending or has occurred.

Abstract: Provided is a thin film battery, including: a base substrate; a cathode current collector pattern and an anode current collector pattern being formed on the base substrate to be electrically separated from each other; a cathode pattern being formed on the cathode current collector pattern; an electrolyte pattern being formed on the cathode pattern; and an anode pattern being formed on the electrolyte pattern. At least one pattern of the cathode current collector pattern and the anode current collector pattern may include a non-noble metal based alloy.

Abstract: A secondary battery including a positive and negative electrode, a separator, an electrolyte, and a gas mitigation device is disclosed. The gas mitigation device may include a catalyst configured to catalyze a reaction to form a solid phase material from one or more gases generated during operation of the battery. The battery may also include a protective enclosure surrounding the catalyst, the protective enclosure being gas permeable and liquid impermeable and preventing contact between the catalyst and the electrolyte. The battery may further include a seed material configured to react with the one or more gases to form the solid phase material, which may also be included within the protective enclosure. The catalyst may include nickel nanoparticles or carbonic anhydrase and the seed material may include iron, magnesium, or calcium. In one embodiment, the solid phase material formed is a metal carbonate.

Abstract: A current interruption device is provided with a first conducting member that is fixed to a casing, a second conducting member that is disposed at a position opposed to the first conducting member, a first deforming member, and a second deforming member. The first deforming member makes contact with the second conducting member when pressure in the casing is equal to or less than a predetermined value, and is configured not to make contact with the second conducting member when the pressure in the casing exceeds the predetermined value. The second deforming member is provided with a projection in a shape projecting toward a center portion of the second conducting member. A restricting structure that restricts a movement of the first deforming member is provided on the first conducting member. A restricting structure that restricts a movement of the second deforming member is provided on the second conducting member.

Abstract: A surface coating method and a method for reducing irreversible capacity loss of a lithium rich transitional oxide electrode are disclosed herein. In an example of the surface coating method, a dispersion of a lithium rich transitional oxide powder and an oxide precursor or a phosphate precursor in a liquid is formed. The liquid is evaporated. The forming and evaporating steps are carried out in the absence of air to prevent precipitation of the oxide precursor or the phosphate precursor. Hydrolyzation of the oxide precursor or the phosphate precursor is controlled under predetermined conditions, and an intermediate product is formed. The intermediate product is annealed to form an oxide coated lithium rich transitional oxide powder or the phosphate coated lithium rich transitional oxide powder.

Abstract: A method of and apparatus for efficient on-demand production of H2 and O2 from water and heat using environmentally safe metals are disclosed. In one aspect, the apparatus for the hydrogen generation through water decomposition reaction includes a main reactor, an oxidizer reactor, and a computer controlling system. The main reactor contains a hydrogen generating substance, such as aluminum hydroxide. In some embodiments, the main reactor includes hydroxide shuttles, such as Cu ion and Ag ion. In another aspect, the system for hydrogen generation through water decomposition includes the steps of (1) REDOX reaction, (2) pre-generation reaction, (3) generation reaction, (4) regeneration reaction, (5) second hydrogen reaction, and (6) oxygen reaction.

Abstract: The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof.

Abstract: A battery active material includes a crystal phase that is represented by a formula Y2?xScxTi2O5S2 (where 0<x<2), and has a Ruddlesden-Popper structure.

Abstract: A computer device includes a main casing, a computer body disposed in the main casing, a linkage mechanism including first and second sheets and a first shape-memory alloy, and a movable casing pivoted to the main casing. The main casing is for engaging with the movable casing to position the movable casing at an open position exposed from the main casing. A driving end of the first sheet is movably inserted into a slot of the movable casing. The second sheet is disposed on a recess structure of the main casing and pivoted to the first sheet. The first shape-memory alloy is pivoted to one of the second sheet and the recess structure and the driving end for moving the driving end along the slot when being heated to shorten or elongate to push the movable casing from a closed position contained in the recess structure to the open position.

Abstract: A secondary battery module including a plurality of unit batteries, each including a first terminal and a second terminal, and a plurality of bus bars, each electrically connecting the first terminal of one of the unit batteries to the second terminal of an adjacent unit battery, wherein the first terminal and second terminal each include a first contact surface and a second contact surface opposite to the first contact surface, the bus bars include a first coupling portion in contact with the first contact surface and the second contact surface of the first terminal of one of the unit batteries, a second coupling portion in contact with the first contact surface and the second contact surface of the second terminal of an adjacent unit battery and a connecting portion connecting the first and second coupling portions.

Abstract: A hydride anode containing aluminium of the formula (M1)m(M2)3?mAlH6, where M1 and M2 are an alkali element selected independently from one another from Li, Na and K; m is a number between 1 and 3; n is a number ?3, and galvanic elements, such as lithium batteries, containing as anodes said hydride anodes containing aluminum. Methods for the production of galvanic elements having hydride anodes containing aluminium is also provided.

Abstract: An improved carbon dioxide composite getter having a CO2-permeable envelope containing powders of two active materials (11, 11?, 11?, 12, 12?, 12?) and sealed systems employing such improved carbon dioxide composite getter are described.

Abstract: Disclosed is an anode active material for secondary batteries enabling intercalation and deintercalation of lithium ions, the anode active material comprising lithium metal oxide containing a halogen atom.

Abstract: A rechargeable battery including an electrode assembly including a first electrode and a second electrode; a case having a space in which the electrode assembly is located; a cap plate coupled with the case; a terminal coupled to the electrode assembly through a current collecting tap, and protruding through the cap plate to an outside of the case; a first cover in which a lower portion of the terminal is located; and a second cover in which an upper portion of the current collecting tap is located, the second cover being coupled with the first cover to secure the terminal and the current collecting tap.

Abstract: The present disclosure provides a lithium secondary battery, which does not need a separate process for removing gases. The lithium secondary battery of the present disclosure comprises an electrode assembly configured to have a cathode, an anode, and a separator interposed therebetween, and a battery case for receiving the electrode assembly and an electrolyte solution, wherein the battery case has a gas-removing agent in one inner side thereof, the gas-removing agent not coming into contact with the other components within the battery case.

Abstract: A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal and a negative electrode terminal attached to the sealing plate; the sealing plate includes a gas release valve at the center between the positive electrode terminal and the negative electrode terminal and includes an electrolyte pour hole on one side of the gas release valve and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code.

Abstract: Disclosed is a method for preparing an electrochemical device, comprising the steps of: charging an electrochemical device using an electrode active material having a gas generation plateau potential in a charging period to an extent exceeding the plateau potential; and degassing the electrochemical device. An electrochemical device, which comprises an electrode active material having a gas generation plateau potential in a charging period, and is charged to an extent exceeding the plateau potential and then degassed, is also disclosed.

Abstract: Disclosed is a sealed secondary battery provided with a current cut-off device which employs an inexpensive and uncomplicated construction, without the need to mount a separate current cut-off device on the battery body. A sealed secondary battery (10) comprises a battery casing (11) and a sealing plate (12), an electrode body (21) and current collecting plates (22, 22) provided on the inside of this casing (11). A contact section (11c) formed as part of the bottom (11a) of this battery casing (11) is bowed further inwards towards the negative electrode-side current collecting plate (22b) than the peripheral section of the bottom (11a) of this battery casing (11).

Abstract: An electricity accumulation device includes an electricity accumulation element, an outer jacket material configured to house the electricity accumulation element, and a deformation sensor disposed on an expansive surface of the outer jacket material. The deformation sensor includes a sensor membrane having a base material made of an elastomer or a resin and conductive fillers filling the base material, the sensor membrane being subjected to bending deformation along with expansion of the outer jacket material, and a pair of electrodes connected to the sensor membrane. A three-dimensional conductive path is formed in the sensor membrane through contact between the conductive fillers. An electric resistance is increased along with an increase in amount of deformation of the sensor membrane from a natural state. The electricity accumulation device senses expansion of the outer jacket material on the basis of variations in electric resistance along with bending deformation of the sensor membrane.

Abstract: A subgasket for a fuel cell is provided. The subgasket includes a barrier layer having an elongate primary seal formed thereon. The seal has at least one inwardly extending baffle adapted to militate against a reactant bypass flow in the fuel cell. A fuel cell and fuel cell stack having the subgasket are also provided.

Abstract: A high-reliability prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock is provided. The prismatic secondary battery includes a second insulating member having a first through-hole, the second insulating member being arranged between a first region of a positive electrode collector and an inversion plate. The first region of the positive electrode collector and the inversion plate are electrically connected to each other through the first through-hole. The second insulating member has a plurality of fixing pawl portions. The fixing pawl portions are hooked and fixed to a fixing portion formed on the outer surface side of the conductive member.

Abstract: A current interruption mechanism for prismatic secondary battery includes a tubular conductive member electrically connected to a positive electrode external terminal, an inversion plate, and a positive electrode collector connected to the inversion plate. The positive electrode collector has a first region that is parallel to a sealing body and a second region that is connected to a positive electrode plate. The boundaries between the first and second regions are disposed further outward than the inner surface of the tubular conductive member, and at least one of the edge portions, other than the boundaries between the first region and second region, is located further outward than the inner surface of the tubular portion of the conductive member. The current interruption mechanism is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc.

Abstract: The case 20 housing a plurality of cells 100 is divided, by a circuit board 30 provided at the same sides of the cells 100, into a housing space 50 housing the cells 100 and an exhaust duct 60 for releasing a gas from the vents 8a of the cells 100 to outside the case 20. The vents 8a of the cells 100 communicate with the exhaust duct 60 through openings 30a formed in the flat plate 30. The exhaust duct 60 is divided into a first space 61 and a second space 62 by a partition 40 provided between the flat plate 30 and an external plate 21 of the case 20. The first space 61 communicates with the second space 62 through through holes 40a formed in the partition 40.

Abstract: The present disclosure relates generally to an alkaline electrochemical cell, such as a battery, and in particular to an improved gelled anode suitable for use therein. More specifically, the present disclosure relates to a gelled anode that improves anode discharge efficiency by adjusting physical properties such as apparent density.

Abstract: A sealed battery (10) provided by the present invention includes: a current cut-off valve (22); and a connecting member (30) having an engagement hole (34) formed in a location adjacent to the current cut-off valve. The current cut-off valve is conductively connected to the connecting member by joining linearly to a peripheral edge of the engagement hole and/or joining at a surface that is in contact with an inner wall of the engagement hole in a state in which part of the current cut-off valve is fitted into the engagement hole. When an internal pressure of a battery case (40) rises above a predetermined level, the current cut-off valve is deformed outward of the case by the internal pressure, the current cut-off valve is separated from the connecting member, and the electric connection between the connecting member and the current cut-off valve is broken.

Abstract: An improved carbon dioxide composite getter having a CO2-permeable envelope containing powders of two active materials (11, 11?, 11?, 12, 12?, 12?) and sealed systems employing such improved carbon dioxide composite getter are described.

Abstract: A quencher for a flow cell battery is described. The quencher utilizes a quench solution formed from FeCl2 in a dilute HCl solution in order to quench chlorine emissions from the flow cell battery. A quench sensor is further described. The quench sensor monitors the concentration level of FeCl2 in the quench solution and may also monitor the level of the quench solution in the quencher.

Abstract: A multi-layer composite getter is described. Also described is a method for the manufacturing of the multi-layer composite getter and electrochemical devices for energy storage that employ the multi-layer composite getter.

Abstract: A rechargeable battery, which can improve safety, control operating level of a short-circuiting member, prevent external moisture from being induced to a short-circuiting member to cause a short-circuit, and can efficiently utilize an internal space. In an embodiment, the rechargeable battery includes an electrode assembly, a collector plate electrically connected to the electrode assembly, a case housing the electrode assembly and the collector plate, a cap plate sealing the case and having a short-circuiting groove formed at a lower portion thereof, and a short-circuiting member formed between the cap plate and the collector plate, wherein the short-circuiting member is coupled to the short-circuiting groove of the cap plate.

Abstract: Rechargeable lithium batteries are described comprising an airtight container, electrodes immersed in an electrolytic solution and spaced apart by means of one or more separators, electrical contacts connected to the electrodes and a means for sorbing harmful substances formed of a multilayer polymeric sheet comprised of an inner layer of a polymeric material containing particles of one or more getter materials for the sorption of the harmful substances, and at least one external protective layer of a polymeric material impermeable to the electrolyte, wherein all the polymeric materials are permeable to the harmful substances.

Abstract: Disclosed are an electrolyte for a secondary battery, and a secondary battery including the same, the electrolyte including an electrolyte salt; an electrolyte solvent; and a compound generating heat through oxidation at voltages higher than drive voltage of a cathode, wherein the compound can decompose or evaporate electrolyte components by oxidation heat, thereby causing gas generation. Also, the compound is included in an internal pressure increase accelerant for a battery. Upon overcharge, since a compound subjected to oxidation at voltages higher than normal drive voltage of a cathode generates heat, electrolyte components can be decomposed or evaporated, thereby generating gas by the oxidation heat. Accordingly, it is possible to operate a safety means of a battery, without using an internal pressure increasing material directly generating gas through oxidation at overcharge voltage as the electrolyte additive, and thus to improve the overcharge safety of a secondary battery.

Abstract: To provide a highly reliable power storage device, to improve the security of a power storage device, and to suppress deterioration of a power storage device, a power storage device includes, inside an exterior material, a positive electrode, a negative electrode facing the positive electrode, an electrolyte solution between the positive electrode and the negative electrode, and an adsorbent. A separation body which is impermeable to the electrolyte solution and permeable to a gas is provided between the electrolyte solution and the adsorbent.

Abstract: A battery assembly includes a sealed battery cell container holds a positive and negative electrode and an electrolyte. Deflection-responsive means engages at least one outer face of the container and is responsive to deflection thereof for operating a cut-off switch to break the electrical continuity of the battery assembly. Flat battery cell containers may be stacked in different arrangements within a coupling structure, the arrangements defining either a cavity between the coupling structure and an adjacent container face, or a cavity between faces of adjacent cell containers. A membrane switch received in the cavity is actuated by bulging of a cell container wall. A control circuit operates the cut-off switch in response to actuation of the membrane switch.